DEVICES

Ever wondered how that thing works? Explore the inner workings of many common devices and inventions, as well as those that aren't so common, such as compasses, gyroscopes and bug zappers.
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How Prosthetic Limbs Work

Your body is a remarkable piece of biological machinery, and your limbs are no exception. Did you ever wonder how prosthetic limbs are made and how they are controlled? And are scientists developing bionic artificial limbs?

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