view wisdom/earth @ 10609:85af85e593e9

<rdococ> learn_append earth Even before that, as long as there has been any tunnel connecting two points on the surface, or a hollow cylinder like a toilet roll, Earth has been a coffee mug.
author HackBot
date Mon, 10 Apr 2017 20:33:59 +0000
parents 2b18c8228918
children 3a4487a52a83
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Topologically speaking, the Earth has been a coffee mug ever since that hole to China was dug. Even before that, as long as there has been any tunnel connecting two points on the surface, or a hollow cylinder like a toilet roll, Earth has been a coffee mug.