It's critical to mention that this happened in the dark days, back when Tom's of Maine was still packaged in metal tubes that were prone to cracks and leaks.

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Officials packed long metal tubes -- called "carrier pigeons" -- with oxygen, vaccines and sustenance, liquid proteins and vitamins at first because the men were not ready for solid food.

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His game is rusty metal tubes buried deep underground.

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Yet even with these losses, the airline industry has figured out how to move millions of spoiled, complaining Americans like me every day inside of tens of thousands of flying metal tubes without killing a single person in four of the past five years.

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Metal mesh tubes called stents are used to keep the arteries from closing again.

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Stents are tiny metal mesh tubes designed to hold open clogged arteries, and they have revolutionized cardiac treatment within the last decade.

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Before the capsule goes down, though, officials said, metal casing or tubes would have to be lowered into the hole to provide a buffer between the capsule and rock.

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Other gases can be targeted by adding metal atoms to the tubes' walls or wrapping other materials around them.

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Instead of metal wires and silicon, these transistors are made of carbon tubes that are 70, 000 times smaller than a human hair.

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Lin, Justin, and Marie examined the semi-conductor industry, where the initial reliance on vacuum tubes was replaced by bipolar technology, which in turn was replaced by complementary metal-oxide semiconductors (CMOS).

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