The Electromagnetic Spectrum. The electromagnetic (EM) spectrum is the range of all types of EM radiation. Radiation is energy that travels and spreads out as it goes â the visible light that comes from a lamp in your house and the radio waves that come from a radio station are two types of electromagnetic radiation.
Top definition. fathom. 1. a unit of mesuring distance that is 6 feet or about equal to the length of a grown man's outstreched arms. 2. to contemplate or think about with effort. 1.the shipwreck is about 10 fathoms down. 2.who but the almighty can fathom the depths of the abyss.
You can view more details on each measurement unit: fathoms or metres. The SI base unit for length is the metre. 1 metre is equal to 0.546806649169 fathoms, or 1 metres. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between fathoms and metres.