Is daylight "white light?" If not, what natural sources contain white light?

Question

I am trying to research the color spectrum as it relates to bubbles and I keep finding references to white light, but no sources for it. I tried to research it on the Internet, but all I get is page after page of stuff about artifical light sources.

Thanks!

Answer 1

It depends on how precise you need to be about 'white'. Broadly, it's any reasonably balanced spectral mix over the visible spectrum. Daylight is well balanced, less so at dawn or dusk. A bright incandescent bulb is good. A standard fluorescent bulb is not, it's 'cool' (low in red), but a 'daylight' is better, and a 'full spectrum' fluorescent is the most balanced fluorescent. A photographic floodlight is balanced but more expensive. A natural source besides sunlight is a hot fire.

Answer 2

Yes, daylight is white light, that is it contains the entire spectrum which is known as ''White Light''. It appears most often (to our eyes) in shades of yellow and red.