view wisdom/vacuum tube @ 11419:5455769afdd1

<oerjan> undo 11380
author HackBot
date Wed, 28 Feb 2018 04:08:06 +0000
parents 9476192dfbb9
children
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After the London terrorist attacks of 2005, the Underground was completely evacuated. Without air resistance, the trains would go at blazingly fast speeds between the terminals. This is called a vacuum tube. Sadly, current technology doesn't let passengers travel that way.