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Messier 57 (M57), also known as the Ring Nebula, is a well-known planetary nebula located in the northern constellation Lyra. The Ring Nebula has an apparent magnitude of 8.8 and lies at an approximate distance of 2,300 light years from Earth. It has the designation NGC 6720 in the New General Catalogue. Messier 57 lie...
Scientists have found evidence that our brains are most active during the summer, with the warmer months appearing to help ramp up the neurological activity required during attention and memory tests. This seasonal difference in the way the brain functions was apparent, even though participants were being kept in dim l...
How lasers could be the future of space cleanup Scientists in Tokyo have proposed a way to rid the Earth’s orbit of space debris using a super-wide telescope and a fiber-based laser system. TU Braunschweig/AP Photo/File Lasers may be the future of garbage disposal – in space, at least. In a paper published in the lates...
Standard deviation is a measure of how spread out numbers are from the average of a data set. It is not the same as average or mean deviation or absolute deviation, where the absolute value of each distance from the mean is used, so be careful to apply the correct steps when calculating deviation. Standard deviation is...
NASA's space shuttles were American icons of spaceflight. Never before had a winged spaceship blasted off from a rocket launching pad, soared through space, then returned home to land on a runway, and then turn around and do it again. NASA's space shuttles were the world's first reusable crewed spacecraft and flew in s...
Whether you are reflecting on the mathematical developments children have made over the year, or thinking about activities for a transition day this article offers plenty of ideas and tasks to support you. How could you estimate the number of pencils/pens in these pictures? On a farm there were some hens and sheep. Alt...
Birds sing to advertise their fitness for the benefit of both potential mates and potential rivals. Their songs also announce that they have secured a territory. Most birds who sing are male, and birds like nightingales have been known to sing all night long to demonstrate their prowess.Continue Reading The song of a b...
What is a Rights Respecting School? At New Park Primary School, we have received the UNICEF Rights Respecting Schools Recognition of Commitment. UNICEF (United Nations Children’s Fund) is the organisation working specifically for children and their rights. Its mission is to campaign for the protection of children’s rig...
Etruscan civilization is the modern English name given to a civilization of ancient Italy. Its homeland was in the area of central Italy, just north of Rome, which is today called Tuscany. In ancient times there was a strong tradition that the Etruscans had emigrated from Lydia, on the eastern coast of present-day Turk...
Phones, tablets, computers, and even televisions use the technology, which relies on substances known as transparent conductive films. All but a small fraction of those films are made from a particular class of oxides that, although they do the job very effectively, contain rare and costly elements. Now, thanks to a br...
The Roman Republic was the period of the ancient Roman civilization when the government operated as a republic. The Roman Republic was founded in 509 BCE after the overthrow of the Roman Kingdom, and predated the Roman Empire. The government of the Roman Republic was heavily manipulated by the Templar Order throughout ...
The Eötvös effect is the change in perceived gravitational force caused by the change in centrifugal acceleration resulting from eastbound or westbound velocity. When moving eastbound, the object's angular velocity is increased (in addition to the earth's rotation), and thus the centrifugal force also increases, causin...
The technique of glass blowing was still unknown in the Hellenistic period. The precious free-blown glass dating from the first century A.D. quite often still imitates the colourful decorations of mould-pressed glass. In order to reach that effect, the half-blown piece of glass, while still attached to the blowpipe, wa...
Learn how to guess the age of a tree, what's inside a tree's trunk, what lives in a forest, why some trees never lose their leaves, and much more! There are many kinds of trees in the world. Scientists use a system called classification to organize different types of trees and make them easier to identify and study. Cl...
Every year, all over the world, wildfires destroy many different landscapes. In the United States alone, wildfires burn an average of 5 million acres per year, which is 5 times the size of Rhode Island, or 137,544 football fields. That’s a tremendous amount of area that gets burned every year, and unfortunately the mai...
This week we are looking at reproduction – by the end of this unit you will understand the concepts of sexual and asexual reproduction and describe how reproduction occurs in unicellular and multicellular organisms. You will learn that prokaryotes reproduce by binary fission and that eukaryotes can also reproduce asexu...
As anyone who's seen The Imitation Game will know, the first modern computer was designed with a single purpose - to crack an unbreakable code. Alan Turing's invention outwitted the Enigma machine, allowing the Allies to read the Nazis' encoded messages and turning the tide of World War II. It was an incredible achieve...
The Arctic ice sheet is literally what it sounds like – a thick sheet of ice floating around the Arctic Circle. It’s so thick, in fact, that you can walk on across an ice-laden ocean for miles. And why are they so important? The ice sheets are vital for our environment because they keep Earth’s temperature and sea leve...
(d. 1631), leader of the Lough Foyle expedition of 1600–3 during the Nine Years War. On May 1600 he landed unimpeded with 4,000 men and began the fortification of Derry. He found a formidable ally in Niall Garbh O'Donnell and gradually widened his control until in June 1602 he was able to effect a rendezvous with Mount...
Antarctica Lesson Plan Suggestions Suggestions and ideas of how to use some of the pages on this site to deliver different subjects with an Antarctic theme. 1/ Climate graphs and Data Subjects - Mathematics, Geography, IT - Using the climate data on one or more of these pages: Antarctica climate graph comparative | Aus...
The average rate of thinning and melting more than doubled between 2004 and 2006, reports the World Glacier Monitoring Service (WGMS), a centre based at the University of Zurich in Switzerland. “The latest figures are part of what appears to be an accelerating trend with no apparent end in sight,” said Wilfried Haeberl...
The United States was simply unprepared for war. What Americans had in enthusiastic spirit, they lacked in military strength. The navy, although improved, was simply a shadow of what it would become by World War I. The United States Army was understaffed, underequipped, and undertrained. The most recent action seen by ...
Polymers that visibly change shape when exposed to temperature changes are nothing new. But a new polymer undergoes a shape change that can be triggered by body heat, opening the door for new medical and other applications. “Tuning the trigger temperature is only one part of the story,” says Mitch Anthamatten, a chemic...
On August 26th, Americans marked the 95th anniversary of the passage of the Nineteenth Amendment, after a long and hard-fought battle by suffragists. With its passage in 1920, the Nineteenth Amendment declared it unconstitutional for any effort to disenfranchise any voter on the basis of sex. In 1971, Congress christen...
Presentation on theme: "Balancing Chemical Equations"— Presentation transcript: 1 Balancing Chemical Equations What goes in must come out! 2 Balancing Chemical Equations Balancing a chemical equation is much like the work of an accountant who has to show every penny that comes in and where it has gone to. 3 Objectives ...
Yarmūk River, Arabic Nahr Al-Yarmūk, Hebrew Nahar Ha-Yarmuk , river, a tributary of the Jordan River, in southwest Asia. For most of its course, the Yarmūk forms the boundary between Syria to the north and Jordan to the south, while near its junction with the Jordan it forms the boundary between Israel and Jordan. Afte...
In this GCSE Chemistry quiz, one of a series on metals, we look at the extraction of metals such as copper from both high grade and low grade ores. The knowledge of how to extract metals from their ores has played an incredibly important role in every known civilisation. The ability to make coins, tools and weapons fro...
Presentation on theme: "EVENTS LEADING TO THE CIVIL WAR 1820’s to 1850’s."— Presentation transcript: EVENTS LEADING TO THE CIVIL WAR 1820’s to 1850’s Sectionalism During the 1820’s, the US went through a period of nationalism ( pride in one’s country) Then the country became concerned with issues related to their own s...
Sort By Color In this sorting worksheet, students follow the directions to color the items on the page. They use the colors green, red, yellow, and blue before circling the items in each of 4 rows that are the same colors. 3 Views 11 Downloads Common and Proper Nouns for Valentine's Day Common or proper noun, that is t...
The Battle of Rhode Island In August 1788 Rhode Island was the setting for one of the major land battles of the Revolutionary War. The Marquis de Lafayette, in writing of this encounter, termed it "the best fought action of the war." The immediate goal of the Continental Army at this time was to drive the British from ...
Grapefruit trees are susceptible to a variety of diseases, including curly leaf disease caused by the citrus leaf miner (Phyllocnistis citrella). According to the University of California, this small moth is not native to the United States but entered through Mexico. It is not fatal to grapefruit trees, but severely af...
Log In to abcteach Free Account (Settings) Back to School Unit: Cut out the pictures and put them in order next to the sentences. Then write a story that uses the sentences as the foundation. Good early reader work. This end of summer fun packet focuses on looking back at this summer's activities and looking forward to...
Great Northern War The Great Northern War (1700–1721), was a war fought between Sweden and the coalition of Russia, Saxony, Poland, and Denmark-Norway. In 1715 Prussia and Hannover joined the war against Sweden. The King of Hannover was also King George II of Great Britain. After the coalition attacked them, Sweden inv...
In this Do Now, students will review the algebra skills needed to solve problems requiring students to use the formula for sum of the interior angles of polygons and also the formula for exterior angle theorem of polygons. This activity provides students with an introduction to polygons with a strong focus on the vocab...
|Date(s):||May 10, 1869| |Location(s):||BOX ELDER, Utah| |Course:||“U.S. History: 1812 - 1914,” Foothill College| |Rating:||4 (18 votes)| Before the development of an interstate freeway system in the mid-twentieth century, most of the transportation systems in the US consisted of railways and canals. “Canal fever” spre...
Key Difference – Quoting vs Paraphrasing Quoting and paraphrasing are two of the techniques used in academic writing. When students enter a university, most of the lecturers assign them with various writing tasks. In these assignments, the students have to incorporate the ideas of others as well. Also, they have to use...
The Andaman Islands are an isolated chain of islands in the Bay of Bengal, situated some 1,000 kilometers from the Indian mainland. During the 18th century, Andaman was colonized by both the Danish and English East India Companies. Shortly after achieving independence in 1947, the Indian government, which inherited the...
Charge, electricity and magnetism “Charge” is the technical term used to indicate that an object has been prepared so as to participate in electrical forces. This is to be distinguished from the common usage, in which the term is used indiscriminately for anything electrical. For example, although we speak colloquially...
Search our collection of classroom resources to plan a unit or find the materials you need for class tomorrow. Analyze the lyrics of two 1960s era songs about respect, by Otis Redding and The Staple Singers. Explore the lyrics of this song by the The Staple Singers and its message about obstacles to racial justice. Poe...
Switzerland is a federation of relatively autonomous cantons, some of which have a history of confederacy that goes back more than 700 years, arguably putting them among the world's oldest surviving republics. According to the popular legend, in 1291, representatives of the three forest cantons of Uri, Schwyz, and Unte...
The cross-price elasticity of demand measures how responsive consumer demand for one good is to changes in the price of a second good. A good's own price is an important determinant of demand, but the prices of other goods matter as well. The cross-price elasticity of demand , which is the percentage change in the quan...
Question: Many of the authors we study contend that the most important goals of education are to improve the moral and social fabric of student and to raise academic achievement. Explain what this means to you and provide illustrations showing how these goals might be best attained. The American public education system...
Almost all of Greenland’s surface ice cover has melted at some point this summer – twice as much as usual. It’s the largest melt ever seen in more than 30 years of satellite observations. This month, 97 percent of Greenland’s ice cover, from its thin, low-lying coastal edges to its two-mile-thick center, experienced so...
This is the first of a two-part series on the basics of financial accounting. Financial Accounting in the Information Age Financial Accounting for the Information Age For more information on how accounting works, you may be interested in a related article on the difference between the current year’s and the following t...
Once we have got to grips with the basics of using python to create ‘visual pattern calculators’, it is time to take our thinking to the next level. Up to now we have only been looking at linear relationships with a straight line graph. The visual pattern above is a quadratic relationship as the pattern grows in a line...
Genes contain all instructions needed to build an organism in form of DNA. Humans share around 99.5% of DNA, but it is the remaining 0.5% that contain the small genetic variations that make us unique. Subtle differences in genes can, for example, influence the colour of our hair or eyes. To build gene products, such as...
Throughout the early years of ZetaTalk, the Point of Passage, where Planet X pierces the Ecliptic, was described as aligning with the ZetaTalk Triangle, which would place Planet X approximately midway between the Earth and the Sun. It was likewise described as being at its closest point some 14 million miles from the E...
Temporal range: Cambrian – Recent |Mussels in the intertidal zone in Cornwall, England| The bivalves are a large class of molluscs, also known as pelecypods. There are over 30,000 species of bivalves, including the fossil species. There are about 9,200 living species in 1,260 genera and 106 families. All of them live i...
Keystone species are plants or animals that play a unique and crucial role in modulating how an ecosystem works. While all species in an ecosystem rely on each other, “keystone species” contribution to the functioning of an ecosystem is much greater compared to their prevalence in the same ecosystem. While a lot of key...
You will need your classroom secrets kids login to play these games. This can be found in your blue books. Science: Identifying different parts of a flower. Watch the BBC video clip and then complete the workheet, labelling the different parts of a flower. If you have any flowers in your garden or home at the moment se...
Researchers at McGill University in Montreal have developed three-dimensional, nanosized cubes made of DNA that can be used to deliver drugs. It marks the first time molecules have been carried within DNA without being attached to the genetic material itself. The scientists shaped small strands of DNA into cubes and th...
Context: CRISPR/Cas9 gene scissors The CRISPR/Cas9-System as used for biotech applications consists of only a few components. One is the protein Cas9 which always has to be present. It functions as a pair of scissors that can cut DNA. Additionally, there is the guide RNA, a variable component that directs the Cas9 prot...
An unprecedented marine heat wave that swept the Southeast Indian Ocean in 2011 has given FIU scientists a glimpse into the future of climate change. The heat wave caused the loss of more than 90 percent of the dominant seagrass in some regions of Shark Bay, Australia. Since seagrass meadows provide habitat for many ec...
Order of architecture is any styles that were used during the neoclassical architecture which are defined by a particular type of entablature as well as column which are used as a basic unit. Each column consist a shaft with its capital as well as its base. There are five major orders that is Doric, iconic, composite, ...
The topics covered in this chapter can be summarized as follows: |2.1||Electrons, Protons, Neutrons, and Atoms||An atom is made up of protons and neutrons in the nucleus and electrons arranged in energy shells around the nucleus. The first shell holds two electrons, and outer shells hold more, but atoms strive to have ...
Time-Travel Math is a supplemental math book with three time-travel adventures that lead students into the exploration of geometry and its applications. Since the book was written for above average fourth and fifth grade students, it might also be used with students beyond those grade levels. The main characters are tw...
Arrays are a way of showing a number using rows and columns. You can find arrays everywhere you look. For example: – How many trays do you see? How would you work that out? How many orange dots can you see? You are going to be asked to find arrays for certain numbers. You will be using blocks or drawing pictures to do ...
Scientists using data from the Copernicus Sentinel-5P satellite have noticed a strong reduction of ozone concentrations over the Arctic. Unusual atmospheric conditions, including freezing temperatures in the stratosphere, have led ozone levels to plummet – causing a ‘mini-hole’ in the ozone layer. The ozone layer is a ...
Summative assessment – a final assessment (such as an exam or test) usually held at the end of a course. Students results are scored and used toward their final grade. Summative assessment is what most people think of when they hear the word ‘assessment’. It includes tests, exams, projects or other assessments that are...
The calculator below implements most known statistical test, namely, Independent Samples t-test or Two samples t-test. t-test also known as Student's t-test, after William Sealy Gosset. "Student" was his pen name. The test deals with null hypothesis such that the means of two populations are equal. To put it in another...
The term is Greek in origin, dating back to the 5th century BC, when it was assigned by the Greeks to a specific form of plays performed at festivals in Greece. The local governments supported such plays, and the mood surrounding the presentation of these plays was that of a religious ceremony, as the entire community,...
This celestial globe was made by Willem Janszoon Blaeu (1571-1638) in Amsterdam, Holland. The Dutch were the first to make printed globes in large numbers and introduced the distinctive the four-legged globe stand. The star map used for this globe is based on then recent observations made by the pioneering Danish astro...
One of the infamous characteristics of Ancient Carthage was, according to their Roman enemies, their prolific practice of child sacrifice. Many ancient historians mention the practice, the most colorful by Diodorus Siculus “There was in their city a bronze image of Cronus extending its hands, palms up and sloping towar...
History & Culture Indian Removal Act — 1830 Signed into law in 1830 by President Andrew Jackson, the Indian Removal Act provided for the general resettlement of Native Americans from east of the Mississippi River to lands west (Indian Territory). Although the removal was supposed to be voluntary, removal became mandato...
Look at the Pictures Make these vocabulary books with your students to emphasize the importance of using pictures while reading. • Give students a word that relates to a thematic unit. For example, if your topic is “Families,” you might write words like “mother,” “father,” “sister,” “grandmother,” etc. • In small group...
On Feb. 1, 1960, four college students in Greensboro, North Carolina—Ezell Blair Jr., David Richmond, Franklin McCain and Joseph McNeil— sat down at the lunch counter in Woolworth’s and tried to order a bite to eat. They were denied. Authorities were called. Police did not arrest the young men, citing a lack of provoca...
The Renaissance or rebirth began in Italy at the end of the fourteenth century and became an era of many cultural and architectural achievements in Europe. The Renaissance first began in Tuscany and was centered on the republics of Siena and Florence after the decimation left in the wake of the Black Death. The end of ...
This earthen mound and the adjacent village were built by people of the Mississippian culture who likely had some relationship to the people associated with the large site of Moundville located about 20 miles south of present-day Tuscaloosa on the Black Warrior River. The Mississippian culture is believed to have origi...
Social-emotional development is a child’s ability to express his or her emotions effectively, follow rules and directions, form positive relationships with others, and build confidence. Many things affect social-emotional growth, such as a child’s biology, home environment, school environment and life experiences. Why ...
The South Sandwich Islands are a string of small volcanic peaks in a remote part of the South Atlantic Ocean near Antarctica and South America. The three tallest islands—Saunders, Montagu, and Bristol—approach at least 1000 meters (3,300 feet) above sea level. As shown by this natural-color satellite image, that was en...
Bullying in Public Schools seems to have become a hot topic lately. Yet it has always been around. What is Bullying? In WSFCS bullying is defined as: Bullying is any pattern of gestures or written, electronic, or verbal communications, or any physical act or any threatening communication, that places a student or schoo...
Pediatric physiotherapie and sensory processing Sensory processing deals with the processing of sensory perception (vision, feeling, smell, taste and hearing) in the brain. These perceptions play an important role in warning for danger, focusing of attention and taking on information. With the majority of children sens...
A glossary of social justice terms, specifically as they pertain to the Kids' Power Series. Aboriginal: A term outlined by the Constitution Act of 1982 to refer to all indigenous peoples of Canada, including First Nation, Métis, and Inuit. It is important to remember that as Fife (2008: 55) states, "These separate grou...
A term older than World War I but popularized during that war, no man’s land refers to a stretch of land under dispute by warring parties, but it can also refer to lawless areas with little or no governing control. A buffer zone, on the other hand, is an area which provides a sense of protection from the enemy. When ph...
Input Statement (cin) In C++ cin is known as an input statement. It is used to input data into the program. The general form of the cin is as follow: cin is a predefined object defined in istream.h file which represents the standard input stream in C++ which is keyboard. >> is known as extraction or get from operator. ...
Understanding Mindfulness is the character trait lesson to help students understand what is mindfulness. Mindfulness is a strategy used to help individuals focus on where they are and what is going on around them. It's a calming strategy helpful for decreasing anxiety, reducing stress, resolving conflicts and reducing ...
Launching an object into space, even a small object, is incredibly expensive. The rocket fuel needed to get a space shuttle into orbit reflects a huge cost as well as significant attention from engineering and operating teams. NASA almost literally burns money on every launch. A space elevator offers to spread the expl...
As the world begins to understand the true environmental, health and cultural costs of “cheap” industrial cotton, a renewed emphasis is being placed on alternative fibers such as native, heritage cottons that can be raised sustainably without chemicals, pesticides and with a minimum of natural resources involved. Accor...
Interstellar travel is a real challenge for our current technological state. The distances are immense, the amount of energy needed is tremendous, and the times exceed every scale of human life. But … what if there was a way to travel between the stars using ships that take advantage of a natural phenomenon to reach re...
The ozone hole over the Antarctic registered its smallest annual peak on record (tracking began in 1982) according to an announcement by the National Oceanic and Atmospheric Administration (NOAA) and NASA on Monday. Each year, an ozone hole forms during the Southern Hemisphere’s late winter as the solar rays power chem...
Introduction to SymmetrySymmetry conveys two primary meanings. The first is an imprecise sense of harmonious or aesthetically pleasing proportionality and balance such that it reflects beauty or perfection. The second meaning is a precise and well-defined concept of balance or "patterned self-similarity" that can be de...
This activity is to allow students to explore all the combinations to ten. These are necessary facts to come to know as they are used as a base to derive other facts from. For example 8 + 4 = . I know 8 + 2 = 10 there’s 2 more so it’s 12 name the combinations to 10. - Flash a ten frame at the students and then hide it....
Complement component 4 is a blood test that measures the activity of a certain protein. This protein is part of the complement system. The complement system is a group of nearly 60 proteins that are found in the blood plasma or on the surface of some cells. The proteins work with your immune system and play a role in p...
The Protestant Reformation of the sixteenth century triggered a fresh wave of bloody conflict in Medieval Europe—a tract of real estate across which evolving nations had suffered tumultuous relations for many dark centuries. Protestant regions broke up Rome’s monopoly on authority in Europe. Neutralizing an authority i...
Students watch films all the time. But do they think about how a good story is told through film? To get your students to think about how filmmakers tell stories through film, they will watch one Centropa film several times, each time analyzing a different aspect of its construction: story, structure and film technique...
Author: Byron Devlin, with the summary written by Brooke James. What is the coronavirus The coronavirus is around every year, but usually doesn’t affect humans. The current strain of coronavirus is called 2019-nCoV, which is short for “2019 novel coronavirus.” It is just the third strain of coronavirus to cause severe ...
The first microscope was invented almost 500 years ago, when two Dutch scientists placed lenses in a tube and found that they could magnify and observe tiny objects. Technology has come a long way since then. Today, microscopes can yield multicolor images that give scientists insight into what is happening inside cells...
A meteor shower is an astronomical event during which many meteors can be seen in a short period of time. Most meteor showers have a peak activity period that lasts between several hours and a couple of days. During this peak period, observers may spot between about 10 to more than 100 meteors per hour in the case of t...
Anatomy and Reproduction were the topics for week 2. We started off the session with a game called “Parts and Post-it Notes” to talk about body parts with the participants. To play this game we had a giant piece of paper with the outline of a body on it. We gave the participants post-it notes to write down the body par...
Skip to 0 minutes and 12 secondsDOROTHY BOGGS: In this step, we are going to consider what accessibility to health care means. Accessibility is a general term that describes the degree to which a product, device, service, or environment is available to be used by all intended audiences. It is a human right to have acce...
- Part 1: Variables and Data Types - Part 2: Arrays - Part 3: Functions - Part 4: Conditional Statements - Part 5: Looping - Part 6: Pointers - Part 7: Objects - Part 8: Complex Data Types In programming terminology, a function is a set of instructions. Functions are a way of abstracting parts of code into sections tha...
In this kids biography, discover the inspiring story of Nelson Mandela, who became the first black president of South Africa after spending 27 years in prison. In 1964, Nelson Mandela was sentenced to a lifetime in jail. His crime? Attempting to overthrow a government that openly discriminated against its black citizen...
Robotics is a different educational approach through which the child is asked to discover the world of engineering and combine it with the world of information technology. It is a pleasant educational course where, through a structured curriculum, children receive valuable resources that help them make progress at scho...
No one ever said that flashcards were the only way to improve your child’s speech and language skills. In fact, motivating play activites are often more effective contexts to incorporate practice of your child’s newly developed skills. Play is how children naturally explore and develop new skills in infancy. Because it...
Mary Wollstonecraft is known as one of the earliest feminist thinkers and writers to become famous and influential throughout Europe. This reputation comes from the publication of her book “Vindication on the Rights of Women” in 1790. At the time it was written, women in Britain didn’t go to school, weren’t allowed to ...
During the era of Prohibition Americans could no longer manufacture, sell, or transport intoxicating beverages. Spirited: Prohibition in America, a new exhibition opening Sept. 1 at the UGA Special Collections Libraries explores this tumultuous time in American history, when flappers and suffragists, bootleggers and te...
Posted on 9 April 2018 Like the antlers on a stag, a pronounced brow ridge was a permanent signal of dominance and aggression in our early ancestors, which modern humans traded in for a smooth forehead with more visible, hairy eyebrows capable of a greater range of movement. Mobile eyebrows gave us the communication sk...
Craft a story from the perspective of a twelve-year-old observing it all. For your twist, focus on specific character qualities, drawing from elements we’ve worked on in this course, like voice and dialogue. The neighbourhood has seen better days, but Mrs. Pauley has lived there since before anyone can remember. She ra...
Why Climates Differ Absorption by the atmosphere of energy emitted from the Earth's surface delays the energy's return to space, creating a greenhouse effect. Eventually all absorbed solar energy returns to outer space as long-wave radiation, maintaining a long-term global energy balance and a nearly constant average g...
Punic Wars > Numidians The Numidians were a tribe of Berbers that lived in ancient North Africa adjacent to the Carthaginians in modern day Algeria. They traded with the Phoenicians of Carthage for generations and eventually became a major component of the Carthaginian military called the Numidian cavalry. In fact, the...