We know “what goes up must come down.” But WHY? "Drop" in to find out! We know “what goes up must come down.” But WHY? Drop in to learn about the gravitational forces like acceleration and air ...
Our motion perception is remarkably well tuned to detect small changes in speed and direction. For example, soccer goalkeepers need to precisely judge the speed, direction, and curvature of an ...
A picture of the International Space Station captured by the Space Shuttle Discovery in 2007. Last month, a two-ton pallet of batteries released by the space station in 2021 re-entered Earth's ...
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