How Does an X-ray See Inside You?
The X-ray picture a doctor uses to see inside your body is really a shadow picture of your bones and organs. X-rays are a kind of invisible ray. They are related to...
Read MoreThe X-ray picture a doctor uses to see inside your body is really a shadow picture of your bones and organs. X-rays are a kind of invisible ray. They are related to...
Read MoreHow Does Electricity Travel Through a Wire? Electricity comes into our buildings on copper or aluminum wires from giant electric generators in power stations. The...
Read MoreHow Does a Magnet Get Its Magnetism? All things, including magnets, are made of tiny atoms. Atoms are made of even tinier particles, among them things called electrons....
Read MoreHow Can Birds Perch on Electric Wires Without Getting Shocked? Birds don’t get shocked when they sit on electrical wires because they are not good conductors of...
Read MoreWhy Do I Sometimes Get a Shock When I Touch a Doorknob? The little shocks you can get by walking on a carpet come from what is called static electricity. Static...
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