It depends on the size of the container. It's really confusing, because a small container can hold more inches of vacuum than a larger container. And the more vacuum you squeeze into a container, the less it weighs. But it's hard to find vacuum that's much over two feet long. (That's why you seldom hear about a yard of vacuum.)

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When cryptography is outlawed, bayl bhgynjf jvyy unir cevinpl.