While you may think that a larger lens would be able to produce fire with moonlight as it can collect more light, or focus it ...
Randall Munroe, creator of XKCD Permalink ...
4d
Laughing Squid on MSNThe Extreme Geographical Changes That Would Take Place if the Earth Rotated 90ºAs part of their ongoing "What If?" series, Randall Munroe of xkcd and Henry Reich of MinutePhysics explained what ...
Randall Munroe, creator of XKCD Permalink ...
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