The Moon and Earth exert a gravitational pull on each other. On Earth, the Moon's gravitational pull causes the oceans to bulge out on both the side closest to the Moon and the side farthest from the Moon. These bulges...
In the mid-twentieth century, aerospace engineering made great strides in aircraft technology. That is, the aircraft was redesigned, including increased safety so that it could carry more passengers and go faster. Until the 1950s, aircraft windows were square. When commercial...
Thirty years ago, on January 22, 1992, was discovered PSR B1257+12 B, also nicknamed Poltergeist. It became the first-ever found planet outside the Solar System. Here are some facts about Poltergeist: placed in the constellation Virgolocated 2,300 light-years away;over four...
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