Railroad tank car implodes under vacuum
Tom Brattain · Demo · 1 min · 2008 · YouTube title: Railroad tank car vacuum implosion
Why it's here
HN people link it as a striking illustration of atmospheric pressure crushing vessels, in threads on vacuum airships, hyperloop and the Titan sub.
What it covers
A brief demonstration of a railroad tank car imploding after a vacuum is pulled with its safety valves disabled.