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Can EM waves be converted into sound waves?

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Radio waves can be made by nature (such as the sun) or by people (such as your microwave oven or at a radio station). If you have a radio receiver or cellphone, you can change a radio wave to sound. Remember, the radio waves are moving energy from one point to another, and sound is a form of energy. read more

Researchers in Japan and Germany have converted energy from soundwaves into electromagnetic energy, trapping a magnetic "spin current" between metal layers. In the experiment, when sound waves are directed at an interface between the thin metal layer and magnetic material, electrical signals are generated at a pair of electrodes attached above. read more

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Effects of Electromagnetic Waves - ppt video online download
Source: slideplayer.com

Further Research

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Crystals are amplifying minerals. You have a crystal in a radio - it amplifies the sound waves. You have a crystal in a television set - it amplifies the light waves. When you hold crystals, they amplify thought waves.
Source: quotemaster.org