howstuffworks uk

all about tools

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Unlike the hammers and chisels collecting cobwebs in garages everywhere, these high-tech tools have worked on everything from revolving water slides to boxing robots.
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Shopping at the hardware store for new tools can reveal some pretty steep price tags, but that's usually just the beginning. Do you know which tool is the most expensive?
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There are many tools that builders find useful, but only a few of them are absolutely critical. What tools do you need most to get the job done?
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The metal used to construct buildings resists all sorts of damage, making it a very reliable material. But it's also very difficult to manipulate into the appropriate form. Enter the plasma cutter.

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What do vitamins do for you?

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You know that fistful of pills you take each morning? Those vitamins are essential ingredients to life. You know they're good for you, but do you know why?

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