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Theories of the Universe: The Faster You Go, the Shorter You Get
The Faster You Go, the Shorter You GetTheories of the UniverseCracks in a Newtonian WorldFaster Than a Speeding Light WaveIt All Depends on Your PositionThe Relative Nature of Space and…Meaning of aa
The Question: What is "aa"? The Answer: Aa can be a very useful word in Scrabble. It is a variety of flow lava which has a rough…How Many Continents Are There?
Source: iStock Like a large jigsaw puzzle, the surface of the Earth is divided up into interlocking pieces that form the world we know today. And when it comes to the number of continents, it hasn’t…Miranda
The smallest of Uranus's large moons, Miranda, 293 mi (472 km) in diameter, has been described as “the most bizarre body in the solar system,” with the most geologically complex surface. Miranda's…Theories of the Universe: Curved Space
Curved SpaceTheories of the UniverseCracks in a Newtonian WorldFaster Than a Speeding Light WaveIt All Depends on Your PositionThe Relative Nature of Space and TimeGeological TimeHow Can You Be in…Historical Development and Mechanisms of Evolution and Natural Selection: Early Theories of Evolution
Early Theories of EvolutionHistorical Development and Mechanisms of Evolution and Natural SelectionIntroductionEarly Theories of EvolutionNatural Selection and EvolutionNatural-Selection Mechanisms…Gravity
How it works and its effect on Earth, the Moon, and the Sun by Mark Hughes Related Links Encyclopedia: Earth The Moon Sir Isaac Newton…Leonardo da Vinci
Leonardo da Vinci is best remembered as the painter of the Mona Lisa (1503-1506) and the mural The Last Supper (1495). Leonardo is equally famous for his astonishing multiplicity of talents: he…James Smithson
Name at birth: James Lewis MacieJames Smithson was an English chemist and mineralogist who left his fortune to the United States to found what became the Smithsonian Institution. Smithson was born…John McPhee
John McPhee wrote non-fiction essays for The New Yorker and published books on a variety of subjects, from oranges and rivers to tennis and nuclear engineering. He won the Pulitzer Prize in 1999 for…Trending
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