The Foe

In reading about different types of supernovae on Wikipedia, I read about a new-to-me unit of measurement—the foe:

A foe is a unit of energy equal to 1044 joules.

To measure the staggeringly immense amount of energy produced by a supernova, specialists occasionally use a unit of energy known as a foe, an acronym derived from the phrase fifty one ergs, or 1051 ergs. This unit of measure is convenient because a supernova typically releases about one foe of observable energy in a very short period of time (which can be measured in seconds). In comparison, the total output of the Sun over its entire lifespan (billions of years) is about a tenth of a foe.

1051 ergs, huh—better put on some sunscreen.  As long as we're talking about absurdly high energy measurements, also check out the article about the so-called Oh-My-God particle, a cosmic ray particle observed in 1991 with about the same amount of energy as a fastball.  (hat tip for getting me reading about this stuff: today's APOD)