I get that the sun is huge energy source, but it is so far, and the light from bulbs is just as bright as the sun
In: 0
Light from lighbulbs isn’t even vaguely as bright as the sun.
The sun is very far away but it is very (very very very very very) powerful.
Solar flux (the amount of energy the sun puts out) is about 1300 W/m2.
So if you focus *all* the power of 13 100W light bulbs on 1 m2 then that’s roughly solar brightness. That’s enourmously more powerful than any normal light source. We use just a few 100W bulbs to illuminate an entire room (tens of m2).
Bright light looks bright, relative to the sun, because your eyes have a frankly ludicrous ability to operate well over a *huge* range of brightness.
Latest Answers