https://en.wikipedia.org/wiki/Foe_(unit) https://en.wikipedia.org/wiki/Foe_(unit) A foe is a unit of energy equal to 1044 joules or 1051 ergs, used to express

https://en.wikipedia.org/wiki/Foe_(unit) https://en.wikipedia.org/wiki/Foe_(unit) A foe is a unit of energy equal to 1044 joules or 1051 ergs, used to express the large amount of energy released by a supernova.[1] An acronym for "[ten to the power of] fifty-one ergs",[2] the term was introduced by Gerald E. Brown of Stony Brook University in his work with Hans Bethe, because "it came up often enough in our work".[3]