stackyFACTSTo move forward in a vacuum, you absolutely must throw something away. Newton's third law commands that every action has an equal and opposite reaction. Rockets accelerate purely by rapidly violently expelling massive amounts of exhaust in the opposite direction. It is just heavily weaponized recoil.
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That boring tunnel you trudge through to board your flight is essentially a massive, incredibly slow-moving robotic arm. An operator completely controls the…
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A heavy bowling ball and a tiny hollow marble suspended on equal lengths of string will perfectly match each other swinging back and forth. The sheer weight…
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Ice skaters aren't just showing off; they are exploiting the conservation of angular momentum. By bringing their mass closer to the axis of rotation, they…
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Pulling tightly on a string creates tension, an invisible force that rigidly runs down the entire length of the line. The pull you exert on one end instantly…
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Balance is entirely dictated by one invisible mathematical dot. As long as an object's center of mass remains vertically aligned over its base, it absolutely…
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You'd think empty space would be perfectly slick, but physics always ruins the fun. Even in a pure vacuum without air resistance, sliding two solid surfaces…
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