You use expansion joints like these: https://en.wikipedia.org/wiki/File:Flanged_... | Hacker News

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		nether on Aug 19, 2013 \| parent \| context \| favorite \| on: On Hyperloop You use expansion joints like these: https://en.wikipedia.org/wiki/File:Flanged_Rubber_Bellows.jp... They're made of rubber, fiberglass and other flexible but strong materials. I don't know how well they'd handle the vacuum stresses but I don't think it'd be too extreme.

ars on Aug 19, 2013 [–]

That won't work because the capsule has to ride on the pipe wall. Any bump will destroy the capsule.

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