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view wisdom/vacuum tube @ 11293:a7899ef2d7b6
<wob_jonas> learn Aristotle said that every illness can be cured by balancing the four vitreous humors, and everyone believed him for two thousand years, even though people still died of illnesses. It wasn\'t until the 20th century that Szent-Gy\xc3\xb6rgyi Albert realized that Aristotle didn\'t find fifth kind of vitreous humor, vitamin C, because the Greek alphabet
author | HackBot |
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date | Mon, 01 Jan 2018 17:57:43 +0000 |
parents | 9476192dfbb9 |
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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.