This Imploding Tank Is The Best 19-Second Clip You'll See Today (VIDEO)

No, really. Although the 'action' takes a mere second or so.

"A railroad tank car demonstration imploding after placing a vacuum on the tank," goes the YouTube description, "with the vacuum safety valves disabled or removed."

Ah yes, those all-important safety valves. Remember not to disable them before you try this at home, kids.

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