President Trump has driven illegal crossings at the border to record lows, helped bring about an uneasy cease-fire in Gaza and upended the global trading system.
At the Houston Museum of Natural Science they recently made a disturbing discovery: their Foucault pendulum had stopped ...
Reaction wheels are useful things, typically used by satellites to keep themselves oriented the right way up in space. Turning the reaction wheel creates an equal and opposite torque in the spacecraft ...
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