Gravity, apparently the most destructive force in the universe, it can rip planets apart, create black holes, create super black holes like the one that out galaxy is slowly descending into. But think, we are all beating gravity just purely existing. Lets put it into perspective, the Earth is roughly 40,000 km in diameter, 6000000000000000000000000kg in weight, and yet we still are able to overcome the gravity that it has on us just simply by bending our legs rapidly. We are on average 80lb in weight, of which 34lb is skeletal muscle, and only 15lb of that is leg muscle. So 15lb of muscle is required to overcome the gravitational pull of the earth, really puts down gravtity doesn't it? Comparing the weight of the earth to the average weight of a human shows that the gravity of the earth really isn't that strong, yet we have problems with it every day.
Obviously space shuttles are badly designed.
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