Microwaves
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From cooking dinner, to changing the channel, microwaves have many useful functions. Because microwaves can penetrate haze, rain, snow, clouds, and smoke they are beneficial for satellite communication and studying the Earth from space. Also, microwaves are used to cook or heat food. They do this by churning any water and fat molecules in the food, thus creating heat. As for future uses, microwave imaging has been shown reliable in detecting breast tumors, but is still being developed for this purpose. The dangers of microwaves include that they can elevate the cholesterol in foods and can also burn human skin.