De la terre à la lune
Ceci représente la Terre. Et ça c'est... A votre avis ? - La lune ...? - Oui. Donc, notre premier challenge est: Quelle distance les séparent ? Approximativement. - A peu près ... Cette...
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Have you ever wondered how the earth stays in orbit around the sun? I mean, the pull of gravity is stronger the closer you are to the sun, so you'd think that if the earth got bumped slightly...
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You may have heard physicists describe the moon as being 1.3 light-seconds away, or the sun as 8 light-minutes away, and thought "what is this nonsense? measuring distances with...
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