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view wisdom/vacuum tube @ 11143:01a5ff6d57ce
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author | HackBot |
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date | Wed, 02 Aug 2017 22:43:33 +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.