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Albert Einstein - NASA
Albert Einstein was born in 1879 in Ulm, Germany. He was the first child born to Hermann and Pauline Einstein. Though he attended school as a young boy, he also received instruction at home on Judaism and violin. By the age of twelve he had taught himself geometry. At the age of sixteen he failed an exam in order to qualify to train as an ...
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StarChild: A Learning Center for Young Astronomers
When a star is approaching and it's coming our way Its spectrum seems bluer, won't you hear what I say And when a star's retreating way out of range And the scientist measures its frequency change Well that's a redshift, redshift If the star is moving away By reading Doppler Shifts of all we see in the skies (clusters of galaxies, near and far ...
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What makes stars shine - NASA
What makes the Sun shine? Answer: The simple answer is that deep inside the core of the Sun, enough protons can collide into each other with enough speed that they stick together to form a helium nucleus and generate a tremendous amount of energy at the same time. This process is called nuclear fusion.
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What is gravity? - NASA
Gravity is a force of attraction that exists between any two masses, any two bodies, any two particles. Gravity is not just the attraction between objects and the Earth. It is an attraction that exists between all objects, everywhere in the universe. Sir Isaac Newton (1642 -- 1727) discovered that a force is required to change the speed or ...
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They're light years away, man, and that's pretty far (lightspeed ... - NASA
They're light years away, man, and that's pretty far (lightspeed's the limit, the big speed limit) But there's plenty we can learn from the light of a star (split it with a prism, there's little lines in it) By looking at the spectrum at the light that's glowing (wavelengths of emission, measured with precision) Its Doppler Shift will tell us if it's coming or going Doo doo doo doo doo-ooo ...
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Sir Isaac Newton - NASA
Sir Isaac Newton. Isaac Newton was born in 1643 in Woolsthorpe, England. His father was a wealthy, uneducated farmer who died three months before Newton was born. Newton's mother remarried and he was left in the care of his grandmother. He attended Free Grammar school. Though Newton did not excel in school, he did earn the opportunity to attend ...
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Teachers' Center Activity: Gravity Effects on Planet Motion - NASA
3. Activity: Explain that the sheet represents spacetime, the large object represents the Sun and the smaller object represents a planet. Have the students pull the edges of the sheet outward. Make sure the sheet is taut. Roll the lighter balls across the sheet. Note how they travel in a straight line. Place the heavy object in the center of ...
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StarChild: Stars - NASA
Gravity continues to pull together the carbon atoms in the core until the temperature reaches 600,000,000 degrees Celsius. At this temperature, carbon atoms form heavy elements such as oxygen and nitrogen. The fusion and production of heavy elements continues until iron starts to form. At this point, fusion stops and the iron atoms start to absorb energy. This energy is eventually released in ...
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StarChild: Glossary - NASA
GRAVITY The invisible force between objects that makes objects attract each other. GRAVITATIONAL PULL The attraction that one object has for another object due to the invisible force of gravity. H HURRICANE A very, very strong windstorm where the wind blows in circles at more than 46 kilometers per hour. Heavy rains often come with the winds. I J K
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StarChild: Glossary - NASA
A cluster of stars, dust, and gas held together by gravity. GAMMA-RAYS Penetrating short wave electromagnetic radiation of very high frequency. GEOSYNCHRONOUS An orbit in which a satellite's rate of revolution matches the Earth's rate of rotation. This allows the satellite to stay over the same site on the Earth's surface at all times.
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