(September 18, 2022 at 6:21 pm)polymath257 Wrote:(September 18, 2022 at 5:35 pm)BrianSoddingBoru4 Wrote: That doesn’t appear to be the case.
Boru
No, it is actually the case.
It is typical, for example, to talk about the brightness of a radio emission or an x-ray emission.
Brightess is usually considered to be equivalent to luminosity.
It isn’t. Brightness is (unsurprisingly) how bright an object appears to an observer. Luminosity refers to total EMR emissions.
To speak of the ‘brightness’ of a radio or x-ray emission may be typical, but it isn’t correct.
Boru
‘I can’t be having with this.’ - Esmeralda Weatherwax
