Tagged Questions
2
votes
2answers
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What is the luminosity per square meter hitting the Earth's surface from the Sun?
So I know that the Sun's luminosity is $3.839 \cdot 10^{26}$.
What I want is the luminosity per square meter at the Earth's surface. So this is what I have got so far:
I know the distance to the ...
1
vote
3answers
1k views
Why is moonlight less colourful than yellow light?
Just what the title states; and this isn't an original question ...
On full-moon, moonlight is almost as bright as mid-dawn ; yet there is hardly any colour visible. This is not the case with ...
