The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
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It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
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In 2010, Gary Richmond was beaten into a coma. He woke up with amnesia and no memory of his wife of 20 years. Subsequently, he ended up falling in love with her all over again!
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An artist in Iowa named Patrick Acton built a complete model of Hogwarts out of matchsticks.
14
From the nitrogen in our DNA, to the calcium in our teeth, the iron in our blood, to the carbon in our apple pies - all were made in the interiors of collapsing stars; we're all made of stardust.
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A young programmer offered a homeless man the choice between $100 cash or coding lessons. Leo Grand chose the lessons, and now his first mobile app is available to download for $.99.
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For a high school science fair project, 17-year-old Michio Kaku built a particle accelerator in his parent's garage that was able to generate a magnetic field 20,000 times greater than the Earth's and produce collisions powerful enough to create antimatter.
34