On Monday 30 November 2009 16:06:39 ezra.steinb...@comcast.net wrote: > Anyone have an idea why the article (from our friends at NASA ;-) below > would mention ergs for energy? > > http://www.nasa.gov/mission_pages/stereo/news/solar_tsunami.html
Beats me. It's not out of range of prefixes applied to the joule, assuming that "1029 ergs" is supposed to be "10^29 ergs" (10^22 joules). When I run the megatons of TNT through the units program, however, it comes out on the order of 10^19 joules. The erg is obsolete, except in the Sahara, where it is still in use, along with the chott and the jebel. :) Pierre -- Don't buy a French car in Holland. It may be a citroen.
