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Some Common Distance Units: Light Year : the distance that light travels in one year (9.46 x 10^17 cm). Parsec (pc) : 3.26 light yea... -
The current standard theory of the origin of the Moon is that the Earth was hit by a giant impactor the size of Mars causing ejection o... -
Another way to make colors is to absorb some of the frequencies of light, and thus remove them from the white light combination. The absorb... -
To make a simple telescope at home, you will need the following: two magnifying glasses - perhaps 1 - 1.5 inches (2.5-3 cm) d...
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Although the Chinese are credited with having invented the rocket as early as the 3rd Century AD, it was not until the 20th Century that it ...
