Gene Fuller wrote:
Do you disagree with NIST?
Could be that NIST didn't consider the fact that someone
could stupid enough to believe in a non-zero irradiance
averaged over an instantaneous time period of zero. :-)
Official Notice: For the purposes of my postings, I am using
Hecht's definition of "irradiance", i.e. "the average energy
per unit area per unit time".
--
73, Cecil
http://www.w5dxp.com