He gives a short and simple explanation for why things fall to the ground. He says that if an object is heavier than the air that surrounds it, then it falls to the ground. But if it's lighter than air, then it will rise. He says that this is called buoyancy, which makes more sense than gravity.

He gives a short and simple explanation for why things fall to the ground. He says that if an object is heavier than the air that surrounds it, then it falls to the ground. But if it's lighter than air, then it will rise. He says that this is called buoyancy, which makes more sense than gravity.

The only reason you need Gravity, is for a fantasy world that spins at 1000 mph and where people walk around like they're Spiderman.  

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The principle of gravity is merely a theory to help make sense of our world so we can build machines and improve technology.
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Without the principle of gravity we would have no shipping industry, submarines, bullet trains, jet aircraft or NASCAR races.
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Do you know that NASCAR puts on the most elaborate and expensive sporting events? More expensive than football or the Olympics?
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There has never been, nor will there ever be, any champion race car driver or stunt man that doesn't believe in gravity.
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Without the principle and concept of gravity and its effects in mind, no one is capable of competing in any race.
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No aviator who can actually fly the plane, or submarine captain or mountain bike Rampage racer has any doubts about gravity.
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So how about that?
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