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my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | and just to get a sense of what 4,000 is -- actually , since i have the calculator out , let 's do the exact calculation . it 's 109 times the circumference of the earth times 40 hours . that 's what it would take to do the circumference of the earth . so it 's 4,360 hours to circumnavigate the sun , going at the speed... | how big is the circumference of jupiter ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | if i were to draw it on this scale , where the sun is even smaller , the earth would be about that big . now , what is n't obvious , because we 've all done our science projects in third and fourth grade -- or we always see these diagrams of the solar system that look something like this -- is that these planets are wa... | what is the order of the planets ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | maybe we ca n't comprehend it , but i 'll say this is the fastest thing that we could maybe comprehend . it goes about -- and there are different types of bullets depending on the type of gun and all of that -- about 280 meters per second , which is about 1,000 kilometers per hour . and this is also roughly the speed o... | and here is my question what types of eclipse are there ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | and just to give a sense of how far this is , light , which is something that we think is almost infinitely fast and that is something that looks instantaneous , that takes eight minutes to travel from the sun to the earth . if the sun were to disappear , it would take eight minutes for us to know that it disappeared o... | would the sun 's gravitational effects travel as quickly were it to somehow disappear ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | and this distance right here is called an astronomical unit -- and we 'll be using that term in the next few videos just because it 's an easier way to think about distance -- sometimes abbreviated au , astronomical unit . and just to give a sense of how far this is , light , which is something that we think is almost ... | does gravity propagate as quickly as light ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | half a year . the sun is huge . now , that by itself may or may not be surprising -- and actually let me give you a sense of scale here , because i have this other diagram of a sun . | sal makes the earth as a little dot and the sunas a big circle but i thought 109 earths could fit in the sun , and how many jupiter 's could fit in the sun ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | and this is also roughly the speed of a jet . so just to give a sense of scale here , the earth 's circumference -- so if you were to go around the planet -- is about 40,000 kilometers . so if you were to travel at the speed of a bullet or the speed of a jetliner , at 1,000 kilometers an hour , it would take you 40 hou... | why is pluto not a planet ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | so if we do that same thought exercise there -- if we said , ok , if i 'm traveling at the speed of a bullet or the speed of a jetliner , it would take me 40 hours to go around the earth . well , how long would it take to go around the sun ? so if you were to get on a jet plane and try to go around the sun , or if you ... | how long does the sun move and when does the sun goes down how hot is it and how long is it ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | even though these are depicted to scale , they 're way further away from the sun than this makes it look . so the earth is 150 million kilometers from the sun . so if this is the sun right here , at this scale you would n't even be able to see the earth . | what will happen if we interchange the volume of sun and the earth without affecting their masses ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | anyway , i 'm going to leave you there . hopefully that just starts to blow your mind when you think about the scale of the sun , the earth , and how far the earth is away from the sun . and then we 're going to see even those distances , even those scales , are super small when you start thinking about the rest of the... | i 'm truly fascinated by khan acadamy 's explainations on things in which case i have a few questions about scale of gravity with the earth , sun and moon.based on magnetic fields and weight how much pull ( on scale ) is the sun and moon actually using on the earth to spin on its axis ( without all of us falling off bu... |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | and on the earth that would be about this far . it would be a speck that would look something like that . that is 100 miles . | and if you were in the `` pull zone '' would you be spaghettified ( stretched ) or disentigrated by fire since space is both hot and cold ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | and just to give a sense of how far this is , light , which is something that we think is almost infinitely fast and that is something that looks instantaneous , that takes eight minutes to travel from the sun to the earth . if the sun were to disappear , it would take eight minutes for us to know that it disappeared o... | what happens in the those 8 minutes with gamma/uv rays , radiation , radio waves , our spinning axis , ect ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | so if we do that same thought exercise there -- if we said , ok , if i 'm traveling at the speed of a bullet or the speed of a jetliner , it would take me 40 hours to go around the earth . well , how long would it take to go around the sun ? so if you were to get on a jet plane and try to go around the sun , or if you ... | would we not feel a quake and see a huge supernova explode before our eyes then the lights go out ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | and also to get us a bit of scale , let 's think about a speed that at least we can kind of comprehend . and that would be , maybe , the speed of a bullet . maybe we ca n't comprehend it , but i 'll say this is the fastest thing that we could maybe comprehend . | why not measure by the speed of sound insited of a bullet ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | so the earth is 150 million kilometers from the sun . so if this is the sun right here , at this scale you would n't even be able to see the earth . it would n't even be a pixel . but it would be 150 million kilometers from the earth . | as there is n't anything faster than light , if the sun were to explode would we be dissipated right away or it would only reach us 8 minutes later ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | half a year . the sun is huge . now , that by itself may or may not be surprising -- and actually let me give you a sense of scale here , because i have this other diagram of a sun . | can a planet or sun be disc formed ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | let me write this down . half a year . the sun is huge . | also what is a light year and how long is it ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | half a year . the sun is huge . now , that by itself may or may not be surprising -- and actually let me give you a sense of scale here , because i have this other diagram of a sun . | is the sun a medium sized starand what is it made out of ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | so this obviously here is the sun . and i think most people appreciate that the sun is much larger than the earth , and that it 's pretty far away from the earth . but i do n't think most people , including myself , fully appreciate how large the sun is or how far it is away from the earth . | how was the earth made ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | so if we do that same thought exercise there -- if we said , ok , if i 'm traveling at the speed of a bullet or the speed of a jetliner , it would take me 40 hours to go around the earth . well , how long would it take to go around the sun ? so if you were to get on a jet plane and try to go around the sun , or if you ... | how long does it take for the earth to orbit the the sun ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . | how was it determined if which latitude is tropic of cancer and which is tropic of capricorn ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . | and if all the meridians are same then why is greenwich meridian preferred as the prime meridian ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | even though these are depicted to scale , they 're way further away from the sun than this makes it look . so the earth is 150 million kilometers from the sun . so if this is the sun right here , at this scale you would n't even be able to see the earth . | how can scientists measure the distance of the earth and the sun ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | so this obviously here is the sun . and i think most people appreciate that the sun is much larger than the earth , and that it 's pretty far away from the earth . but i do n't think most people , including myself , fully appreciate how large the sun is or how far it is away from the earth . | mr creator why is earth so round ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | now , with that out of the way let 's think about the sun . because the sun starts to approach something far huger . so this obviously here is the sun . and i think most people appreciate that the sun is much larger than the earth , and that it 's pretty far away from the earth . but i do n't think most people , includ... | if the earth were , say , a mile closer to the sun , how much hotter would our climate be ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | so if we do that same thought exercise there -- if we said , ok , if i 'm traveling at the speed of a bullet or the speed of a jetliner , it would take me 40 hours to go around the earth . well , how long would it take to go around the sun ? so if you were to get on a jet plane and try to go around the sun , or if you ... | how long will it take for the suns dimeter to become that of a red super giant ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | and this is also roughly the speed of a jet . so just to give a sense of scale here , the earth 's circumference -- so if you were to go around the planet -- is about 40,000 kilometers . so if you were to travel at the speed of a bullet or the speed of a jetliner , at 1,000 kilometers an hour , it would take you 40 hou... | if gravity and inertia balance out to create the orbit , what causes the initial inertia that the planet follows forever ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | and then we 're going to see even those distances , even those scales , are super small when you start thinking about the rest of the solar system . and especially when we start going beyond the solar system . | how did voyager 1 and 2 escape the solar system without using fuel ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . | how can the universe expand ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | it would be a speck that would look something like that . that is 100 miles . and also to get us a bit of scale , let 's think about a speed that at least we can kind of comprehend . | is it true that you can fit 100 earths on saturn 's ring ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | so if you were to travel at the speed of a bullet or the speed of a jetliner , at 1,000 kilometers an hour , it would take you 40 hours to circumnavigate the earth . and i think none of this information is too surprising . you might have taken a 12- or 15-hour flight that gets you -- not all the way around the earth --... | what kinds of animals do you think jupiter might have inside ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | or , if we divided by 365 , roughly 17 years . if you were to shoot a bullet straight at the sun it would take 17 years to get there , if it could maintain its velocity somehow . so this would take a bullet or a jet plane 17 years to get to the sun . or another way to visualize it -- this sun right over here , on my sc... | how big can a star get ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | so this obviously here is the sun . and i think most people appreciate that the sun is much larger than the earth , and that it 's pretty far away from the earth . but i do n't think most people , including myself , fully appreciate how large the sun is or how far it is away from the earth . so just to give you a sense... | why did people name so many planets after roman gods insted of greek ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | even though these are depicted to scale , they 're way further away from the sun than this makes it look . so the earth is 150 million kilometers from the sun . so if this is the sun right here , at this scale you would n't even be able to see the earth . | doesent the distance between the earth and the sun vary ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | even though these are depicted to scale , they 're way further away from the sun than this makes it look . so the earth is 150 million kilometers from the sun . so if this is the sun right here , at this scale you would n't even be able to see the earth . | perfectly , how many miles across earth through venus and mercury to the sun ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . | how hot is a kelvin ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | so this obviously here is the sun . and i think most people appreciate that the sun is much larger than the earth , and that it 's pretty far away from the earth . but i do n't think most people , including myself , fully appreciate how large the sun is or how far it is away from the earth . | why is the earth called the earth ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | even though these are depicted to scale , they 're way further away from the sun than this makes it look . so the earth is 150 million kilometers from the sun . so if this is the sun right here , at this scale you would n't even be able to see the earth . | is the sun 's core made up of the same stuff as the earth 's core ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . | are there really 'aliens ' in the universe ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | so you could imagine , if you had a football field -- let me draw a football field . these are the end zones -- one end zone , another end zone . and if you were to stick something -- maybe the size of a medicine ball , a little bit bigger than a basketball , at one end zone -- this little speck would be about 60 yards... | what is the goldilocks zone ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | so you could imagine , if you had a football field -- let me draw a football field . these are the end zones -- one end zone , another end zone . and if you were to stick something -- maybe the size of a medicine ball , a little bit bigger than a basketball , at one end zone -- this little speck would be about 60 yards... | are the planets in the goldilocks zone of their star systems are suitable for life ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | half a year . the sun is huge . now , that by itself may or may not be surprising -- and actually let me give you a sense of scale here , because i have this other diagram of a sun . | does gravity [ sun 's own gravity and of the other planets ] and other forces have any effect on the speed of light or any other properties of light ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | so it 's this little speck . you would n't even notice it on the scale of a football field , something this size . anyway , i 'm going to leave you there . | if the earth has a north pole and a south pole , would n't that make it have a magnetic field ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | half a year . the sun is huge . now , that by itself may or may not be surprising -- and actually let me give you a sense of scale here , because i have this other diagram of a sun . | how many earths can fit inside the sun ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | anyway , i 'm going to leave you there . hopefully that just starts to blow your mind when you think about the scale of the sun , the earth , and how far the earth is away from the sun . and then we 're going to see even those distances , even those scales , are super small when you start thinking about the rest of the... | in `` scale of the earth and sun '' he says it 's 109x earth 's circumference ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | and this is also roughly the speed of a jet . so just to give a sense of scale here , the earth 's circumference -- so if you were to go around the planet -- is about 40,000 kilometers . so if you were to travel at the speed of a bullet or the speed of a jetliner , at 1,000 kilometers an hour , it would take you 40 hou... | is earth really the only planet humans and animals can live on ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | and on the earth that would be about this far . it would be a speck that would look something like that . that is 100 miles . | what would happen in terms of gravity ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | and on the earth that would be about this far . it would be a speck that would look something like that . that is 100 miles . | would we feel the absence of its gravitational effects right away ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | and just to get a sense of what 4,000 is -- actually , since i have the calculator out , let 's do the exact calculation . it 's 109 times the circumference of the earth times 40 hours . that 's what it would take to do the circumference of the earth . so it 's 4,360 hours to circumnavigate the sun , going at the speed... | how did we find the circumference of the earth ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | although , even for me , the earth itself is a pretty mind-blowingly large object . now , with that out of the way let 's think about the sun . because the sun starts to approach something far huger . so this obviously here is the sun . | ok i saw someone asking does the sun have an orbit and kahacademy answered saying , it orbits the center of the milky-way , but we all know there has to be something in between our solar system and the center of the universe much , much , much bigger than our universe and everything inside of it , so wouldnt we be orbi... |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | and just to put that in perspective , if we want it in days , there 's 24 hours per day . so this would be 6,250 days . or , if we divided by 365 , roughly 17 years . if you were to shoot a bullet straight at the sun it would take 17 years to get there , if it could maintain its velocity somehow . so this would take a ... | in the next few years would the sun have a solor flare and fry mercery , venes , and earth ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | and then we 're going to see even those distances , even those scales , are super small when you start thinking about the rest of the solar system . and especially when we start going beyond the solar system . | considering the depiction of the solar system 5 - if the sun has so much mass , resulting in a huge amount of gravitational pull , what keeps our planet , as well as the rest of the planets in our solar system from crashing into it and each other ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | or , if we divided by 365 , roughly 17 years . if you were to shoot a bullet straight at the sun it would take 17 years to get there , if it could maintain its velocity somehow . so this would take a bullet or a jet plane 17 years to get to the sun . | my physics teacher told me that it was because of the centripetal force that each planet maintains , but how could a velocity perpendicular to that of the sun 's gravity keep them on the orbital path they are currently on ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . | so , my question : what sort of fuel is used to propel the vehicle/s ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | half a year . the sun is huge . now , that by itself may or may not be surprising -- and actually let me give you a sense of scale here , because i have this other diagram of a sun . | are the impulses of heat on the sun caused by many hydrogen helium conversions at one time ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | so you could imagine , if you had a football field -- let me draw a football field . these are the end zones -- one end zone , another end zone . and if you were to stick something -- maybe the size of a medicine ball , a little bit bigger than a basketball , at one end zone -- this little speck would be about 60 yards... | if so how much heat does one atom of hydrogen generate when converted ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | so this obviously here is the sun . and i think most people appreciate that the sun is much larger than the earth , and that it 's pretty far away from the earth . but i do n't think most people , including myself , fully appreciate how large the sun is or how far it is away from the earth . | do any of u no how fast the earth is spining ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | so it would be 100 times -- i could do 109 , but just for approximate -- it 's roughly 100 times the circumference of the earth . so 109 times 40 is equal to 4,000 hours . and just to get a sense of what 4,000 is -- actually , since i have the calculator out , let 's do the exact calculation . | the earth is just 40,000 kilometres ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | and just to get a sense of what 4,000 is -- actually , since i have the calculator out , let 's do the exact calculation . it 's 109 times the circumference of the earth times 40 hours . that 's what it would take to do the circumference of the earth . | how did they calculate that the circumference of the earth is about 40,000km ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | half a year . the sun is huge . now , that by itself may or may not be surprising -- and actually let me give you a sense of scale here , because i have this other diagram of a sun . | how can scientist guess the age of the sun ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | so just to give you a sense , the sun is 109 times the circumference of the earth . so if we do that same thought exercise there -- if we said , ok , if i 'm traveling at the speed of a bullet or the speed of a jetliner , it would take me 40 hours to go around the earth . well , how long would it take to go around the ... | how fast does the jet go to take 40 hrs round earth ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . | where is the nearest wormhole ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | these are the end zones -- one end zone , another end zone . and if you were to stick something -- maybe the size of a medicine ball , a little bit bigger than a basketball , at one end zone -- this little speck would be about 60 yards away , roughly 60 meters away . so it 's this little speck . | what is a medicine ball ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . | how was the universe formed ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | half a year . the sun is huge . now , that by itself may or may not be surprising -- and actually let me give you a sense of scale here , because i have this other diagram of a sun . | how hot is the sun ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | half a year . the sun is huge . now , that by itself may or may not be surprising -- and actually let me give you a sense of scale here , because i have this other diagram of a sun . | what is the sun made of ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | half a year . the sun is huge . now , that by itself may or may not be surprising -- and actually let me give you a sense of scale here , because i have this other diagram of a sun . | why does sun appear reddish in the image in the video , though it clearly emits all electromagnetic radiations ( thus complete visible spectrum ) ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | even though these are depicted to scale , they 're way further away from the sun than this makes it look . so the earth is 150 million kilometers from the sun . so if this is the sun right here , at this scale you would n't even be able to see the earth . | how hot is the sun from earth ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . | geez , our universe is enormous how many intelligent civilizations might exist ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . | why are heavenly bodies round ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | so this obviously here is the sun . and i think most people appreciate that the sun is much larger than the earth , and that it 's pretty far away from the earth . but i do n't think most people , including myself , fully appreciate how large the sun is or how far it is away from the earth . | i want to ask you a philosophical question : who is the creature of the earth and other galaxies ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | or , if we divided by 365 , roughly 17 years . if you were to shoot a bullet straight at the sun it would take 17 years to get there , if it could maintain its velocity somehow . so this would take a bullet or a jet plane 17 years to get to the sun . | sal said that the ' if the velocity could remain the same somehow , '' is n't this apply to newton 's 1st law ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | and also to get us a bit of scale , let 's think about a speed that at least we can kind of comprehend . and that would be , maybe , the speed of a bullet . maybe we ca n't comprehend it , but i 'll say this is the fastest thing that we could maybe comprehend . | would n't the bullet continue on at a constant speed , since there is not resistance to stop it ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | so if this is the sun right here , at this scale you would n't even be able to see the earth . it would n't even be a pixel . but it would be 150 million kilometers from the earth . | why does n't mars have life on it ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | so just to give you a sense , the sun is 109 times the circumference of the earth . so if we do that same thought exercise there -- if we said , ok , if i 'm traveling at the speed of a bullet or the speed of a jetliner , it would take me 40 hours to go around the earth . well , how long would it take to go around the ... | so traveling around the earth at the speed of a bullet would take around 40 hours , which is more than a day which has 24 hours ... how fast does the earth spin again ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | and also to get us a bit of scale , let 's think about a speed that at least we can kind of comprehend . and that would be , maybe , the speed of a bullet . maybe we ca n't comprehend it , but i 'll say this is the fastest thing that we could maybe comprehend . | how does a jet make enough thrust to match the speed of a speeding bullet ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | or another way to think about it -- if the sun was about this size , then the earth at this scale would be about 200 feet away from it . so you could imagine , if you had a football field -- let me draw a football field . these are the end zones -- one end zone , another end zone . | why does sal use a football field ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | and just to give a sense of how far this is , light , which is something that we think is almost infinitely fast and that is something that looks instantaneous , that takes eight minutes to travel from the sun to the earth . if the sun were to disappear , it would take eight minutes for us to know that it disappeared o... | could we detect that the sun was gone 8 minutes before the light went out if we could detect the change of the earth 's tragectory ) ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | or another way , just to put it in the sense of this jet airplane -- let 's get the calculator back out . so we 're talking about 150 million kilometers . so if we 're going at 1,000 kilometers an hour , it would take us 150,000 hours at the speed of a bullet or at the speed of a jet plane to get to the sun . and just ... | is one au always 150,000,000 km ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | even though these are depicted to scale , they 're way further away from the sun than this makes it look . so the earth is 150 million kilometers from the sun . so if this is the sun right here , at this scale you would n't even be able to see the earth . | from earth the sun looks yellow-orange ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | half a year . the sun is huge . now , that by itself may or may not be surprising -- and actually let me give you a sense of scale here , because i have this other diagram of a sun . | what is the sun 's real color ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | you would n't even notice it on the scale of a football field , something this size . anyway , i 'm going to leave you there . hopefully that just starts to blow your mind when you think about the scale of the sun , the earth , and how far the earth is away from the sun . | what is the total distance going around the earth ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | half a year . the sun is huge . now , that by itself may or may not be surprising -- and actually let me give you a sense of scale here , because i have this other diagram of a sun . | can anyone explain what those flares from the sun ( the 4-inch pic ) were caused by ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | so if we do that same thought exercise there -- if we said , ok , if i 'm traveling at the speed of a bullet or the speed of a jetliner , it would take me 40 hours to go around the earth . well , how long would it take to go around the sun ? so if you were to get on a jet plane and try to go around the sun , or if you ... | traveling at the speed of a jet , how long would it take to get to the moon ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | half a year . the sun is huge . now , that by itself may or may not be surprising -- and actually let me give you a sense of scale here , because i have this other diagram of a sun . | how many earths fit inside sun , and how many murcury s fit in sun ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | even though these are depicted to scale , they 're way further away from the sun than this makes it look . so the earth is 150 million kilometers from the sun . so if this is the sun right here , at this scale you would n't even be able to see the earth . | i was just wondering , is it true that you can fit about ( roughly ) 1 million earths inside the sun ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | so if this is the sun right here , at this scale you would n't even be able to see the earth . it would n't even be a pixel . but it would be 150 million kilometers from the earth . | how is that even possible ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | half a year . the sun is huge . now , that by itself may or may not be surprising -- and actually let me give you a sense of scale here , because i have this other diagram of a sun . | right now , nov 2014 , roughly how many earths could fit in the sun ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | it would be a speck that would look something like that . that is 100 miles . and also to get us a bit of scale , let 's think about a speed that at least we can kind of comprehend . | how many miles that earth have ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . | is the biggest megaflare a supernova or a gamma ray burst ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . | what is the biggest star ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | and just to get a sense of what 4,000 is -- actually , since i have the calculator out , let 's do the exact calculation . it 's 109 times the circumference of the earth times 40 hours . that 's what it would take to do the circumference of the earth . | how many times does the earth fit into it ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | so if you were to get on a jet plane and try to go around the sun , or if you were to somehow ride a bullet and try to go around the sun -- do a complete circumnavigation of the sun -- it 's going to take you 109 times as long as it would have taken you to do the earth . so it would be 100 times -- i could do 109 , but... | hi um is it true that the earth can fit inside jupiter 100 times ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . | how was the univerese formed ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | and just to get a sense of what 4,000 is -- actually , since i have the calculator out , let 's do the exact calculation . it 's 109 times the circumference of the earth times 40 hours . that 's what it would take to do the circumference of the earth . | when sal says that the sun 's circumference is 109 times the size of earth , does he include coronal mass ejections , solar flares , etc ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | it goes about -- and there are different types of bullets depending on the type of gun and all of that -- about 280 meters per second , which is about 1,000 kilometers per hour . and this is also roughly the speed of a jet . so just to give a sense of scale here , the earth 's circumference -- so if you were to go arou... | how much faster is a rocket than a jet ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | if the sun were to disappear , it would take eight minutes for us to know that it disappeared on earth . or another way , just to put it in the sense of this jet airplane -- let 's get the calculator back out . so we 're talking about 150 million kilometers . | why does n't it get put out by the vacuums of space ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | if you were to shoot a bullet straight at the sun it would take 17 years to get there , if it could maintain its velocity somehow . so this would take a bullet or a jet plane 17 years to get to the sun . or another way to visualize it -- this sun right over here , on my screen it has about a five- or six-inch diameter ... | do all the planets lie in the same plane ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | half a year . the sun is huge . now , that by itself may or may not be surprising -- and actually let me give you a sense of scale here , because i have this other diagram of a sun . | if the sun is a star , and all stars explode to a black hole is n't there a chance for the sun to explode ? |
my goal in this video and the next video is to start giving a sense of the scale of the earth and the solar system . and as we see , as we start getting into to the galaxy and the universe , it just becomes almost impossible to imagine . but we 'll at least give our best shot . so i think most of us watching this video... | and just to give a sense of how far this is , light , which is something that we think is almost infinitely fast and that is something that looks instantaneous , that takes eight minutes to travel from the sun to the earth . if the sun were to disappear , it would take eight minutes for us to know that it disappeared o... | if so , how can we save earth from the sun and still find a star that could provide us with light and energy ... ... ... ... ... ... ... can we do anything to save our planet ? |
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