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| Description: Detecting invisible radiation Photographic films are used to detect ultraviolet and infrared wavelengths Most invisible wavelengths do not penetrate Earth’s atmosphere, so balloons, rockets, and satellites are used Radio radiation Reaches Earth’s surface Radio telescopes Large because radio waves are about 100,000 times longer than visible radiation Often made of a wire mesh Have rather poor resolution Can be wired together into a network called a radio interferometer Picture Stats: Views: 402 Filesize: 2.07MB Height: 879 Width: 986 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=39772 |