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.
1 Fathom = 1.8288 Meters. Fathom is an imperial, U.S. customary length unit and usually used to measure the depth of water. The abbreviation is ftm. Meter is a metric system base length unit and defined as the length of the path travelled by light in vacuum during a time interval of 1/299,792,458 of a second. It equals to 3.2808399 feet or 39.3700787 inches.