Fathom Fathom A fathom is a unit of length in the imperial and the U.S. customary systems equal to , used especially for measuring the depth of water. There are two yards (6 feet) in an imperial fathom. Originally the span of a man's outstretched arms, the size of a fathom has varied slightly depending on whether it was defined as a thousandth of an (Admiralty) nautical mile or as a multiple of the imperial yard. Formerly, the term was used for any of several units of length varying around . The name derives from the Old English word "fæðm", cognate
Deep Fathom She later appears in the James Rollins novel "Black Order" in which she begins a romance with Director Painter Crowe of the SIGMA Force team and appears in subsequent SIGMA Force novels. Deep Fathom Deep Fathom is a novel by James Rollins. Ex-Navy SEAL Jack Kirkland surfaces from an aborted underwater salvage mission to find the earth burning. Solar flares have triggered a series of gargantuan natural disasters. Earthquakes and hellfire rock the globe. Air Force One has vanished from the skies with America's president on board. Now, with the U.S. on the narrow brink of nuclear apocalypse, Kirkland must