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what is anemia anemia means that you have too few red blood cells ( rbcs ) or hemoglobin protein ( hgb ) in your blood . it can also mean that the hematocrit level is low in your blood . remember , red blood cells are each full of hemoglobin , and hemoglobin is the protein that transports oxygen from the lungs to the c...
when these red blood cells clog up blood vessels it can lead to intense pain in the bones or chest . what causes anemia ? there are a lot of diseases and conditions which can lead to anemia .
do men have anemia more or women ?
what is anemia anemia means that you have too few red blood cells ( rbcs ) or hemoglobin protein ( hgb ) in your blood . it can also mean that the hematocrit level is low in your blood . remember , red blood cells are each full of hemoglobin , and hemoglobin is the protein that transports oxygen from the lungs to the c...
these diseases can be grouped together into four broad causes of having too few red blood cells ( rbcs ) in blood . | causes | associated diseases | | decreased production of rbcs | aplastic anemia folic acid deficiency iron deficiency anemia kidney disease leukemia and myelodysplastic syndrome thalassemia pernicious a...
as a nurse , what manifestation do you expect from a patient with b12 deficiency ?
what is anemia anemia means that you have too few red blood cells ( rbcs ) or hemoglobin protein ( hgb ) in your blood . it can also mean that the hematocrit level is low in your blood . remember , red blood cells are each full of hemoglobin , and hemoglobin is the protein that transports oxygen from the lungs to the c...
this form of `` dilutional anemia '' is common , and the increased blood volume can cause heart palpitations ( that feeling of your heart skipping a beat ) . patients with sickle cell anemia have red blood cells that are deformed and do n't sail smoothly through blood vessels . when these red blood cells clog up blood ...
how big is each red blood cell ?
what is anemia anemia means that you have too few red blood cells ( rbcs ) or hemoglobin protein ( hgb ) in your blood . it can also mean that the hematocrit level is low in your blood . remember , red blood cells are each full of hemoglobin , and hemoglobin is the protein that transports oxygen from the lungs to the c...
anemias caused by a deficiency of iron , folate , and vitamin b12 are easy to prevent with the use of vitamin supplements and a healthy diet . other anemias such as sickle cell are genetic and can not be prevented . how do you treat anemia ?
and how does sickle cell get to you ?
what is anemia anemia means that you have too few red blood cells ( rbcs ) or hemoglobin protein ( hgb ) in your blood . it can also mean that the hematocrit level is low in your blood . remember , red blood cells are each full of hemoglobin , and hemoglobin is the protein that transports oxygen from the lungs to the c...
additional medications may be given to treat the disease itself , such as steroids to depress the immune system for hemolytic anemia . consider the following : you may have noticed that men have more red blood cells and hemoglobin in a given volume of blood than women . why do you think that might be ?
in the second paragraph in consider the following what are the symptoms of thickening blood ?
what is anemia anemia means that you have too few red blood cells ( rbcs ) or hemoglobin protein ( hgb ) in your blood . it can also mean that the hematocrit level is low in your blood . remember , red blood cells are each full of hemoglobin , and hemoglobin is the protein that transports oxygen from the lungs to the c...
why do you think that might be ? scientists are not sure yet , but one hypothesis is that higher testosterone levels in men stimulates red blood cell production . some athletes have been found `` blood doping '' , by using products like the hormone erythropoietin before a major event .
or does one side of your face droop ?
what is anemia anemia means that you have too few red blood cells ( rbcs ) or hemoglobin protein ( hgb ) in your blood . it can also mean that the hematocrit level is low in your blood . remember , red blood cells are each full of hemoglobin , and hemoglobin is the protein that transports oxygen from the lungs to the c...
how do you treat anemia ? anemia is treated by resolving the underlying cause of the anemia . patients with anemia from sudden blood loss may be given a blood transfusion , and patients with low iron or folate levels will be given vitamin and mineral supplements .
what is the cause of the strange cravings ?
what is anemia anemia means that you have too few red blood cells ( rbcs ) or hemoglobin protein ( hgb ) in your blood . it can also mean that the hematocrit level is low in your blood . remember , red blood cells are each full of hemoglobin , and hemoglobin is the protein that transports oxygen from the lungs to the c...
this means one hemoglobin molecule holds 4 oxygen and 250 million hemoglobin molecules can be found within each red blood cell . that 's a lot of oxygen ! if you don ’ t have enough red blood cells and/or hemoglobin , then your body won ’ t be able to effectively transport oxygen .
given that jak2 is involved in a lot of myleoprolific disorders , are there available genetic mechanisms in the pipeline for correcting jak2 abnormalities ?
what is anemia anemia means that you have too few red blood cells ( rbcs ) or hemoglobin protein ( hgb ) in your blood . it can also mean that the hematocrit level is low in your blood . remember , red blood cells are each full of hemoglobin , and hemoglobin is the protein that transports oxygen from the lungs to the c...
what is anemia anemia means that you have too few red blood cells ( rbcs ) or hemoglobin protein ( hgb ) in your blood . it can also mean that the hematocrit level is low in your blood .
can anemia completely go away , or is it like diabetus , just with red blood cells ?
what is anemia anemia means that you have too few red blood cells ( rbcs ) or hemoglobin protein ( hgb ) in your blood . it can also mean that the hematocrit level is low in your blood . remember , red blood cells are each full of hemoglobin , and hemoglobin is the protein that transports oxygen from the lungs to the c...
when these red blood cells clog up blood vessels it can lead to intense pain in the bones or chest . what causes anemia ? there are a lot of diseases and conditions which can lead to anemia .
how many of the anemia patients in the united states survived in 2015 , and how many died ?
what is anemia anemia means that you have too few red blood cells ( rbcs ) or hemoglobin protein ( hgb ) in your blood . it can also mean that the hematocrit level is low in your blood . remember , red blood cells are each full of hemoglobin , and hemoglobin is the protein that transports oxygen from the lungs to the c...
when these red blood cells clog up blood vessels it can lead to intense pain in the bones or chest . what causes anemia ? there are a lot of diseases and conditions which can lead to anemia .
is normochromic normocytic a type of anemia ?
what is anemia anemia means that you have too few red blood cells ( rbcs ) or hemoglobin protein ( hgb ) in your blood . it can also mean that the hematocrit level is low in your blood . remember , red blood cells are each full of hemoglobin , and hemoglobin is the protein that transports oxygen from the lungs to the c...
what if we had a speck of blood 2 microliters ( mcl ) in volume ? how many red blood cells would be in that speck of blood ? what 's inside blood ?
if so , would this type of anemia present with normal haemoglobin levels in the red blood cells but a reduction in the amount of blood cells per m/ul ?
what are global modernisms ? you might be wondering why this topic is called global modernisms , as if there is more than just one type of modernism in the history of art . when we talk about art history , it 's easy to look at that art through the lens of where we live and come from–and in this case , a great deal of ...
his museum of contemporary african art in london ( 2013 ) creates what he calls `` a new reality '' by staging an exhibition that speaks to his experience of africa set within the space of a european gallery . by doing so , he invites the western art establishment to engage with african art , but also to question why d...
is n't is already postmodernism then ?
what are global modernisms ? you might be wondering why this topic is called global modernisms , as if there is more than just one type of modernism in the history of art . when we talk about art history , it 's easy to look at that art through the lens of where we live and come from–and in this case , a great deal of ...
what are global modernisms ? you might be wondering why this topic is called global modernisms , as if there is more than just one type of modernism in the history of art .
or global modernism has a different time frame ?
background curl in two dimensions line integrals in a vector field if you have n't already , you may also want to read `` why care about the formal definitions of divergence and curl '' for motivation . what we 're building to in two dimensions , curl is formally defined as the following limit of a line integral : $ \d...
background curl in two dimensions line integrals in a vector field if you have n't already , you may also want to read `` why care about the formal definitions of divergence and curl '' for motivation . what we 're building to in two dimensions , curl is formally defined as the following limit of a line integral : $ \d...
which is used to interpret divergence and curl ?
background curl in two dimensions line integrals in a vector field if you have n't already , you may also want to read `` why care about the formal definitions of divergence and curl '' for motivation . what we 're building to in two dimensions , curl is formally defined as the following limit of a line integral : $ \d...
concept check : let $ c $ represent the circumference of a unit circle centered at the origin , oriented counterclockwise . given the picture of the vector field $ \bluee { \textbf { f } } $ above , consider the following line integral : $ \begin { align } \oint_c \bluee { \textbf { f } } \cdot d\textbf { r } \end { al...
why the integral of f.dr is proportional to the area ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
the net force on the space probe is zero—since the forces on it cancel—so there is no change in the velocity of the probe . example 2 : elevator lift an elevator is being pulled upward at a constant velocity by a cable as seen in the diagram below . while the elevator is moving upward at constant velocity , how does th...
what will happen , to the time period of a simple pendulum hung in a lift , that is accelerated downwards with an acceleration a > g ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
the net force on the space probe is zero—since the forces on it cancel—so there is no change in the velocity of the probe . example 2 : elevator lift an elevator is being pulled upward at a constant velocity by a cable as seen in the diagram below . while the elevator is moving upward at constant velocity , how does th...
will it oscillate in a reversed manner , provided the top of the lift is open ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
in order for the net force on the elevator to be zero , the upward and downward forces must cancel exactly . example 3 : space probe path a space probe is drifting to the right with constant velocity in deep interstellar space—far from any influence due to planets and stars . if a rocket thruster turns on and then off ...
i can not understand 3rd example : why probe path become diagonally ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
an external force is a force originating from outside an object rather than a force internal to an object . for instance , the force of gravity that earth exerts on the moon is an external force on the moon . however , the force of gravity that the inner core of the moon exerts on the outer crust of the moon is an inte...
earth has a gravitational pull , so why moon is not on earth ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . if we could observe the mot...
while watching the astronauts eating in the iss , it got me thinking ... does gravity affect blood circulation ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . if we could observe the mot...
on the other hand the blood travelling through the veins and arteries are powered or made to move with the help of the heart , so does 0 - gravity affect the circulatory system ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
but on an air hockey table , where air keeps the puck from touching the table , the air hockey puck continues moving with a roughly constant velocity until a force acts on it—like when it bumps into the side of the table . what do force , external force , and net force mean ? a force is a push or a pull exerted on one ...
how to the astronauts eat in mid air there is no gravitational force pulling them down does n't that hurt their bodies when they come down ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
but on an air hockey table , where air keeps the puck from touching the table , the air hockey puck continues moving with a roughly constant velocity until a force acts on it—like when it bumps into the side of the table . what do force , external force , and net force mean ? a force is a push or a pull exerted on one ...
is dark matter considered as an external force ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
the units of force $ f $ are called newtons or simply $ \text { n } $ . an external force is a force originating from outside an object rather than a force internal to an object . for instance , the force of gravity that earth exerts on the moon is an external force on the moon .
in free fall , when an object reaches terminal velocity , why does the force of drag ( air resistance ) become equal to the weight ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
however , the force of gravity that the inner core of the moon exerts on the outer crust of the moon is an internal force on the moon . internal forces within an object ca n't cause a change in that object 's overall motion . the net force , written as $ \sigma f $ , on an object is the total force on an object .
why do internal forces not cause change in motion of a body ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
but on an air hockey table , where air keeps the puck from touching the table , the air hockey puck continues moving with a roughly constant velocity until a force acts on it—like when it bumps into the side of the table . what do force , external force , and net force mean ? a force is a push or a pull exerted on one ...
does the density of an object affect the acceleration when there is an external force ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
the units of force $ f $ are called newtons or simply $ \text { n } $ . an external force is a force originating from outside an object rather than a force internal to an object . for instance , the force of gravity that earth exerts on the moon is an external force on the moon .
if it was a small little cube of gold , with the same mass of 1 kg , and i apply the same force , will that result in the same acceleration of the object ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . if we could observe the mot...
why do n't the satellites fall while orbiting around the earth ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
a force is a push or a pull exerted on one object by another object . the units of force $ f $ are called newtons or simply $ \text { n } $ . an external force is a force originating from outside an object rather than a force internal to an object .
in the elevator problem , if the acceleration due to gravity is 9.8 n and the force applied is 10 n can the elevator accelerate ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
newton ’ s first law is often called the law of inertia . as we know from experience , some objects have more inertia than others . it is obviously more difficult to change the motion of a large boulder than that of a basketball , for example .
how to objects inside the iss experience free fall when there is air inside ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
once the net force is zero , the velocity—both magnitude and direction—must be constant . because of newton 's first law , the space probe moves in a straight line at constant speed . the fact that there was a vertical force on the space probe does not affect the horizontal velocity of the space probe , it only changes...
on the 3rd question , if the 3rd law indicates that an object will keep going in a straight line , why does the probe not change its direction ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
but on an air hockey table , where air keeps the puck from touching the table , the air hockey puck continues moving with a roughly constant velocity until a force acts on it—like when it bumps into the side of the table . what do force , external force , and net force mean ? a force is a push or a pull exerted on one ...
i mean you could answer buy adding the vectors , but there are no vectors , the net force is zero , no ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
the property of a body to remain at rest or to remain in motion with constant velocity is called inertia . newton ’ s first law is often called the law of inertia . as we know from experience , some objects have more inertia than others .
why is it called the law of inertia , and not just , newton 's laws of motion ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
however , the force of gravity that the inner core of the moon exerts on the outer crust of the moon is an internal force on the moon . internal forces within an object ca n't cause a change in that object 's overall motion . the net force , written as $ \sigma f $ , on an object is the total force on an object .
why does internal forces within an object can not cause a change in that object 's overall motion ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
a force is a push or a pull exerted on one object by another object . the units of force $ f $ are called newtons or simply $ \text { n } $ . an external force is a force originating from outside an object rather than a force internal to an object .
could someone please explain number 2 for me , i do n't get why the forces are equal since the elevator is going up , does n't the upward force have to be more ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
the property of a body to remain at rest or to remain in motion with constant velocity is called inertia . newton ’ s first law is often called the law of inertia . as we know from experience , some objects have more inertia than others .
what has newton 's 1st law got to do with inertia ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
the box of burritos would either continue moving with a constant velocity—if it started with a velocity before the forces were applied—or stay at rest—if it was already at rest before the forces were applied . what does mass mean ? the property of a body to remain at rest or to remain in motion with constant velocity i...
so since things with more mass are harder to accelerate does that mean that a pebble would fall faster than a boulder if dropped from the same height ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
but on an air hockey table , where air keeps the puck from touching the table , the air hockey puck continues moving with a roughly constant velocity until a force acts on it—like when it bumps into the side of the table . what do force , external force , and net force mean ? a force is a push or a pull exerted on one ...
in the lift example , should n't the fc force be greater than fg as the lift 's moving upwards ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
in order for the net force on the elevator to be zero , the upward and downward forces must cancel exactly . example 3 : space probe path a space probe is drifting to the right with constant velocity in deep interstellar space—far from any influence due to planets and stars . if a rocket thruster turns on and then off ...
in the last paragraph , example 3 , i do not understand how the space probe moves in path c. can you please explain ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
b . the space probe would speed up . c. the space probe would slow down and eventually stop .
for example three , what would happen to the probe if the vertical thruster was on for a long time ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
but on an air hockey table , where air keeps the puck from touching the table , the air hockey puck continues moving with a roughly constant velocity until a force acts on it—like when it bumps into the side of the table . what do force , external force , and net force mean ? a force is a push or a pull exerted on one ...
another question i have is how much force is needed to cancel the horizontal force and go totally down and not diagnol ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
the net force , written as $ \sigma f $ , on an object is the total force on an object . if many forces act on an object , then the net force is the sum of all the forces . but be careful—since force $ f $ is a vector , to find the net force $ \sigma f $ , the forces must be added up like vectors using vector addition ...
if the net forces acting on a box of burritos is zero , then it 's not accelerating , right ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
but on an air hockey table , where air keeps the puck from touching the table , the air hockey puck continues moving with a roughly constant velocity until a force acts on it—like when it bumps into the side of the table . what do force , external force , and net force mean ? a force is a push or a pull exerted on one ...
would you need to make up a force to account for that acceleration ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
but on an air hockey table , where air keeps the puck from touching the table , the air hockey puck continues moving with a roughly constant velocity until a force acts on it—like when it bumps into the side of the table . what do force , external force , and net force mean ? a force is a push or a pull exerted on one ...
what is the difference between net force and force ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
but on an air hockey table , where air keeps the puck from touching the table , the air hockey puck continues moving with a roughly constant velocity until a force acts on it—like when it bumps into the side of the table . what do force , external force , and net force mean ? a force is a push or a pull exerted on one ...
what is the difference between net force and force ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
but on an air hockey table , where air keeps the puck from touching the table , the air hockey puck continues moving with a roughly constant velocity until a force acts on it—like when it bumps into the side of the table . what do force , external force , and net force mean ? a force is a push or a pull exerted on one ...
if the net force is 0 , why does n't the object stay at rest ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
but on an air hockey table , where air keeps the puck from touching the table , the air hockey puck continues moving with a roughly constant velocity until a force acts on it—like when it bumps into the side of the table . what do force , external force , and net force mean ? a force is a push or a pull exerted on one ...
( regarding my previous question ) : so the net force does not include the initial force ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
but on an air hockey table , where air keeps the puck from touching the table , the air hockey puck continues moving with a roughly constant velocity until a force acts on it—like when it bumps into the side of the table . what do force , external force , and net force mean ? a force is a push or a pull exerted on one ...
in the second question , if the force exerted by cable is equal to force of gravity then how will the elevator move upwards ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
in deep interstellar space , we would observe that if an object had a velocity , it would continue moving with that velocity until there was some force to cause a change in the motion . similarly , if an object were at rest in interstellar space , it would remain at rest until there was a force to cause it to change it...
an object at rest stays at rests ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
but on an air hockey table , where air keeps the puck from touching the table , the air hockey puck continues moving with a roughly constant velocity until a force acts on it—like when it bumps into the side of the table . what do force , external force , and net force mean ? a force is a push or a pull exerted on one ...
in example 2 , if the elevator is moving upward , the force of cable has to be more than the gravitational force , otherwise the forces would balance out and the elevator would n't move , so is n't the answer a : fc is greater than fg ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . if we could observe the motion of an object in deep interstellar space , we would be able to observe the natural tendencies of an object 's motion free...
does free fall affect blood pressure , flow of blood , or peristalsis ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
but on an air hockey table , where air keeps the puck from touching the table , the air hockey puck continues moving with a roughly constant velocity until a force acts on it—like when it bumps into the side of the table . what do force , external force , and net force mean ? a force is a push or a pull exerted on one ...
my question is , what force makes the food float ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
but on an air hockey table , where air keeps the puck from touching the table , the air hockey puck continues moving with a roughly constant velocity until a force acts on it—like when it bumps into the side of the table . what do force , external force , and net force mean ? a force is a push or a pull exerted on one ...
if when there is no net force , objects maintain their velocity then which upward net force makes me stop falling when i hit the ground ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
but on an air hockey table , where air keeps the puck from touching the table , the air hockey puck continues moving with a roughly constant velocity until a force acts on it—like when it bumps into the side of the table . what do force , external force , and net force mean ? a force is a push or a pull exerted on one ...
for example 3 if the elevator is moving upwards , then should n't the upward force be greater ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
in other words , constant zero velocity—at rest—or constant non-zero velocity—moving with a constant velocity . for the box of frozen burritos , if the rightward force had a magnitude of 45 newtons and the leftward force had a magnitude of 45 newtons , the net force would be zero . the box of burritos would either cont...
what happens to the burritos ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
the net force on the space probe is zero—since the forces on it cancel—so there is no change in the velocity of the probe . example 2 : elevator lift an elevator is being pulled upward at a constant velocity by a cable as seen in the diagram below . while the elevator is moving upward at constant velocity , how does th...
in example 2 : elevator lift , how can the answer be that the forces are equal ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
the box of burritos would either continue moving with a constant velocity—if it started with a velocity before the forces were applied—or stay at rest—if it was already at rest before the forces were applied . what does mass mean ? the property of a body to remain at rest or to remain in motion with constant velocity i...
what is the difference between mass and weight ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
d. $ \redd { f_c } $ could be larger or smaller than $ \greend { f_g } $ depending on the mass of the elevator . the correct answer is b . if the elevator is moving with constant velocity , the net force must be zero .
why is c the correct answer and not b ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
b . the space probe would speed up . c. the space probe would slow down and eventually stop .
the statement says if an object is not accelerating i.e that it is stopped or moving at a constant speed , has no net forces acting on it which has to be false or else the object would n't have the constant speed would it ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
because of newton 's first law , the space probe moves in a straight line at constant speed . the fact that there was a vertical force on the space probe does not affect the horizontal velocity of the space probe , it only changes the vertical velocity . a constant vertical and horizontal velocity yields a diagonal str...
the fact that there was a vertical force on the space probe does not affect the horizontal velocity '' why vertical force is not affecting on the horizontal velocity ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
b . the space probe would speed up . c. the space probe would slow down and eventually stop .
why would an object in space move horizontally ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
in other words , if a box of frozen burritos had a force of magnitude 45 newtons exerted on it to the right and a force of magnitude 30 newtons exerted on it to the left , the net force in the horizontal direction would be $ \sigma f_ { \text { horizontal } } =45\text { n } -30\text { n } $ $ \sigma f_ { \text { horizo...
if an unbalanced force does n't act on an object moving at a constant velocity , would this object move forever ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
a . the space probe would continue with constant velocity . b .
however , if we were to be in interstellar space and i pushed an object forward , would n't that object keep moving in that same direction with a constant velocity ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
but on an air hockey table , where air keeps the puck from touching the table , the air hockey puck continues moving with a roughly constant velocity until a force acts on it—like when it bumps into the side of the table . what do force , external force , and net force mean ? a force is a push or a pull exerted on one ...
will the space probe keep moving , as the net force is 0 ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
similarly , if an object were at rest in interstellar space , it would remain at rest until there was a force to cause it to change its motion . in the video below , we can see that objects in the international space station either remain at rest or continue with constant velocity relative to the space station until ac...
if there is an elevator at rest in the international space station , how does that affect the scale a person is standing on inside that elevator ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
but on an air hockey table , where air keeps the puck from touching the table , the air hockey puck continues moving with a roughly constant velocity until a force acts on it—like when it bumps into the side of the table . what do force , external force , and net force mean ? a force is a push or a pull exerted on one ...
why the net force on the burritos was 15n , ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
but on an air hockey table , where air keeps the puck from touching the table , the air hockey puck continues moving with a roughly constant velocity until a force acts on it—like when it bumps into the side of the table . what do force , external force , and net force mean ? a force is a push or a pull exerted on one ...
we said that the net force is th addition of vectors , why did we substract ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so .
what is inerrtia , essentialy ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
the box of burritos would either continue moving with a constant velocity—if it started with a velocity before the forces were applied—or stay at rest—if it was already at rest before the forces were applied . what does mass mean ? the property of a body to remain at rest or to remain in motion with constant velocity i...
does inertia mean the interaction with gigg 's field ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
but on an air hockey table , where air keeps the puck from touching the table , the air hockey puck continues moving with a roughly constant velocity until a force acts on it—like when it bumps into the side of the table . what do force , external force , and net force mean ? a force is a push or a pull exerted on one ...
so like in examples 1 & 3 , you need to ignore the force in example 2 that set the elevator in motion ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
what do solved questions involving newton 's first law look like ? example 1 : space probe drift a space probe is drifting to the right at a constant velocity in deep interstellar space—far from any influence due to planets and stars—with its rockets off . if two rocket thrusters both turn on simultaneously exerting id...
in example 1 , what would happen if one of the forces was greater than the other ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
an object sliding across a table or floor slows down due to the net force of friction acting on the object . but on an air hockey table , where air keeps the puck from touching the table , the air hockey puck continues moving with a roughly constant velocity until a force acts on it—like when it bumps into the side of ...
for example , if i 'm playing air hockey and the puck was moving initially in the vertical direction but then i hit it in the horizontal direction , the puck moves in the horizontal direction ( if i hit it hard enough ) right ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
but on an air hockey table , where air keeps the puck from touching the table , the air hockey puck continues moving with a roughly constant velocity until a force acts on it—like when it bumps into the side of the table . what do force , external force , and net force mean ? a force is a push or a pull exerted on one ...
for example 2 : elevator lift ..if this net force is zero is that the elevator is moving upward or not ..without force how can it be displaced ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
the property of a body to remain at rest or to remain in motion with constant velocity is called inertia . newton ’ s first law is often called the law of inertia . as we know from experience , some objects have more inertia than others .
then the cell phone breaks into pieces after hitting ground and scatter away is this happening on basis of newton 's 1st law or law of inertia ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
the property of a body to remain at rest or to remain in motion with constant velocity is called inertia . newton ’ s first law is often called the law of inertia . as we know from experience , some objects have more inertia than others .
when was newton 's first law of motion created the yea r ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
the property of a body to remain at rest or to remain in motion with constant velocity is called inertia . newton ’ s first law is often called the law of inertia . as we know from experience , some objects have more inertia than others .
newton 's first law was also called ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
in order for the net force on the elevator to be zero , the upward and downward forces must cancel exactly . example 3 : space probe path a space probe is drifting to the right with constant velocity in deep interstellar space—far from any influence due to planets and stars . if a rocket thruster turns on and then off ...
is the direction where the space probe moves in the last example actually the resultant of the two velocity vectors ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
the net force on the space probe is zero—since the forces on it cancel—so there is no change in the velocity of the probe . example 2 : elevator lift an elevator is being pulled upward at a constant velocity by a cable as seen in the diagram below . while the elevator is moving upward at constant velocity , how does th...
what will happen , to the time period of a simple pendulum hung in a lift , that is accelerated downwards with an acceleration a > g ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
the net force on the space probe is zero—since the forces on it cancel—so there is no change in the velocity of the probe . example 2 : elevator lift an elevator is being pulled upward at a constant velocity by a cable as seen in the diagram below . while the elevator is moving upward at constant velocity , how does th...
will it oscillate in a reversed manner , provided the top of the lift is open ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
in order for the net force on the elevator to be zero , the upward and downward forces must cancel exactly . example 3 : space probe path a space probe is drifting to the right with constant velocity in deep interstellar space—far from any influence due to planets and stars . if a rocket thruster turns on and then off ...
in the 3rd example how is the probe getting pushed backwards ; how will newtons 3rd law work in deep space ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
but on an air hockey table , where air keeps the puck from touching the table , the air hockey puck continues moving with a roughly constant velocity until a force acts on it—like when it bumps into the side of the table . what do force , external force , and net force mean ? a force is a push or a pull exerted on one ...
so a measurement of force is always done as an instantaneous moment captured in time ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
in order for the net force on the elevator to be zero , the upward and downward forces must cancel exactly . example 3 : space probe path a space probe is drifting to the right with constant velocity in deep interstellar space—far from any influence due to planets and stars . if a rocket thruster turns on and then off ...
how do space people survive in space ?
why do objects slow down ? before galileo and newton , many people thought objects slowed down because they had a natural built in tendency to do so . but those people were n't taking into account the many forces—e.g. , friction , gravity , and air resistance—here on earth that cause objects to change their velocity . ...
the box of burritos would either continue moving with a constant velocity—if it started with a velocity before the forces were applied—or stay at rest—if it was already at rest before the forces were applied . what does mass mean ? the property of a body to remain at rest or to remain in motion with constant velocity i...
what does the word inertia mean , as in where does it originate from ?
overview paleolithic groups developed increasingly complex tools and objects made of stone and natural fibers . language , art , scientific inquiry , and spiritual life were some of the most important innovations of the paleolithic era . technological innovation stone tools are perhaps the first cultural artifacts whic...
what evidence do we have that paleolithic people had developed a capacity for language ? could paleolithic people have survived in the ways that they did without language ? what do you think was the purpose of paleolithic art such as cave paintings and figurines ?
could it be determined by the shape of the throat on if people would be able to have language , or speech ?
overview paleolithic groups developed increasingly complex tools and objects made of stone and natural fibers . language , art , scientific inquiry , and spiritual life were some of the most important innovations of the paleolithic era . technological innovation stone tools are perhaps the first cultural artifacts whic...
by approximately 40,000 years ago , narrow stone blades and tools made of bone , ivory , and antler appeared , along with simple wood instruments . closer to 20,000 years ago , the first known needles were produced . eventually , between 17,000 and 8,000 years ago , humans produced more complicated instruments like bar...
is there any mark or hypothesis on when first speech developed ?
overview paleolithic groups developed increasingly complex tools and objects made of stone and natural fibers . language , art , scientific inquiry , and spiritual life were some of the most important innovations of the paleolithic era . technological innovation stone tools are perhaps the first cultural artifacts whic...
without the aid of language , these things would likely have been impossible . examinations of the craniums of archaic homo sapiens suggest large brains with indentations that imply the development of brain areas associated with speech . exactly how humans developed a capacity for language is a matter of considerable d...
can the present-day hunter-gatherers in africa and other parts of the world be called homo sapiens , but not homo sapiens sapiens ?
overview paleolithic groups developed increasingly complex tools and objects made of stone and natural fibers . language , art , scientific inquiry , and spiritual life were some of the most important innovations of the paleolithic era . technological innovation stone tools are perhaps the first cultural artifacts whic...
without the aid of language , these things would likely have been impossible . examinations of the craniums of archaic homo sapiens suggest large brains with indentations that imply the development of brain areas associated with speech . exactly how humans developed a capacity for language is a matter of considerable d...
what is the difference between homo sapiens and homo sapiens sapiens ?
overview paleolithic groups developed increasingly complex tools and objects made of stone and natural fibers . language , art , scientific inquiry , and spiritual life were some of the most important innovations of the paleolithic era . technological innovation stone tools are perhaps the first cultural artifacts whic...
it is likely that many tools made out of materials besides stone were prevalent but simply did not survive to the present day for scientists to observe . one exception is the neolithic “ ice man ” , found by two hikers in the ötztal alps , who was preserved in ice for 5,000 years ! he was found with a robust set of sto...
when was the ice man found ?
overview paleolithic groups developed increasingly complex tools and objects made of stone and natural fibers . language , art , scientific inquiry , and spiritual life were some of the most important innovations of the paleolithic era . technological innovation stone tools are perhaps the first cultural artifacts whic...
anthropologists have inferred this by drawing analogies to modern hunter-gatherer groups and by interpreting cave art which depicts group hunting . by approximately 40,000 years ago , narrow stone blades and tools made of bone , ivory , and antler appeared , along with simple wood instruments . closer to 20,000 years a...
so , if da vinci was alive say 25,000 years ago , and did n't die for a very long time ... and he still had all his intelligence of course , how far would we be technology wise now ?
overview paleolithic groups developed increasingly complex tools and objects made of stone and natural fibers . language , art , scientific inquiry , and spiritual life were some of the most important innovations of the paleolithic era . technological innovation stone tools are perhaps the first cultural artifacts whic...
overview paleolithic groups developed increasingly complex tools and objects made of stone and natural fibers . language , art , scientific inquiry , and spiritual life were some of the most important innovations of the paleolithic era .
is the last statue even real ?
overview paleolithic groups developed increasingly complex tools and objects made of stone and natural fibers . language , art , scientific inquiry , and spiritual life were some of the most important innovations of the paleolithic era . technological innovation stone tools are perhaps the first cultural artifacts whic...
he was found with a robust set of stone and natural-fiber tools , including a six-foot longbow , deerskin case , fourteen arrows , a stick with an antler tip for sharpening flint blades , a small flint dagger in a woven sheath , a copper axe , and a medicine bag . language , culture and art language was perhaps the mos...
are we to assume that there was enough biological evolution in this time to allow more fine motor functions , or is it simply the development of culture ?
overview paleolithic groups developed increasingly complex tools and objects made of stone and natural fibers . language , art , scientific inquiry , and spiritual life were some of the most important innovations of the paleolithic era . technological innovation stone tools are perhaps the first cultural artifacts whic...
technological innovation stone tools are perhaps the first cultural artifacts which historians can use to reconstruct the worlds of paleolithic peoples . in fact , stone tools were so important in the paleolithic age that the names of paleolithic periods are based on the progression of tools : lower paleolithic , upper...
does this mean that if a lower-paleolithic man was handed a tool from the neolithic age he would be able to replicate it ?
overview paleolithic groups developed increasingly complex tools and objects made of stone and natural fibers . language , art , scientific inquiry , and spiritual life were some of the most important innovations of the paleolithic era . technological innovation stone tools are perhaps the first cultural artifacts whic...
language , art , scientific inquiry , and spiritual life were some of the most important innovations of the paleolithic era . technological innovation stone tools are perhaps the first cultural artifacts which historians can use to reconstruct the worlds of paleolithic peoples . in fact , stone tools were so important ...
in paragraph 1 under `` technological innovation '' , it is stated that the progression of tools has been divided into the eras of lower paleolithic , upper paleolithic , mesolithic , and neolithic , but what exact innovations prompted these divisions ?
overview paleolithic groups developed increasingly complex tools and objects made of stone and natural fibers . language , art , scientific inquiry , and spiritual life were some of the most important innovations of the paleolithic era . technological innovation stone tools are perhaps the first cultural artifacts whic...
what do you think ? what evidence do we have that paleolithic people had developed a capacity for language ? could paleolithic people have survived in the ways that they did without language ?
what evidence do we have that paleolithic people had developed a capacity for language ?
overview paleolithic groups developed increasingly complex tools and objects made of stone and natural fibers . language , art , scientific inquiry , and spiritual life were some of the most important innovations of the paleolithic era . technological innovation stone tools are perhaps the first cultural artifacts whic...
could paleolithic people have survived in the ways that they did without language ? what do you think was the purpose of paleolithic art such as cave paintings and figurines ?
what do you think was the purpose of paleolithic art such as cave paintings and figurines ?
overview paleolithic groups developed increasingly complex tools and objects made of stone and natural fibers . language , art , scientific inquiry , and spiritual life were some of the most important innovations of the paleolithic era . technological innovation stone tools are perhaps the first cultural artifacts whic...
without the aid of language , these things would likely have been impossible . examinations of the craniums of archaic homo sapiens suggest large brains with indentations that imply the development of brain areas associated with speech . exactly how humans developed a capacity for language is a matter of considerable d...
`` examinations of the craniums of archaic homo sapiens suggest large brains with indentations that imply the development of brain areas associated with speech '' what does indentation here means ?
overview paleolithic groups developed increasingly complex tools and objects made of stone and natural fibers . language , art , scientific inquiry , and spiritual life were some of the most important innovations of the paleolithic era . technological innovation stone tools are perhaps the first cultural artifacts whic...
scientists can infer the early use of language from the fact that humans traversed large swaths of land , established settlements , created tools , traded , and instituted social hierarchies and cultures . without the aid of language , these things would likely have been impossible . examinations of the craniums of arc...
how are we able to translate things from extinct language ?
overview paleolithic groups developed increasingly complex tools and objects made of stone and natural fibers . language , art , scientific inquiry , and spiritual life were some of the most important innovations of the paleolithic era . technological innovation stone tools are perhaps the first cultural artifacts whic...
in addition to cave art , portable figurines dated to paleolithic times have been found . many of these include finely carved facial features , while others accentuate sexual organs and buttocks , such as the 25,000 year old figurine found at dolni vestonice in the modern-day czech republic . such an object shows a des...
are some of the words similar to modern day languages or what ?
overview paleolithic groups developed increasingly complex tools and objects made of stone and natural fibers . language , art , scientific inquiry , and spiritual life were some of the most important innovations of the paleolithic era . technological innovation stone tools are perhaps the first cultural artifacts whic...
he was found with a robust set of stone and natural-fiber tools , including a six-foot longbow , deerskin case , fourteen arrows , a stick with an antler tip for sharpening flint blades , a small flint dagger in a woven sheath , a copper axe , and a medicine bag . language , culture and art language was perhaps the mos...
were we forced to stop speaking the language ?