3 ms·
Wouldn't brightness have a cube root relationship to energy, because it radiates into space? That would make it 125 million times more energetic. Edit: Reread
by enkid 7y ago
Wouldn't brightness have a cube root relationship to energy, because it radiates into space? That would make it 125 million times more energetic.
Edit: Rereading the article, it seems it's only one order of magnitude higher than a normal explosion? I clearly am out of my depth on this one, because that doesn't make sense to me.
- btilly 7y agoWouldn't brightness have a cube root relationship to energy, because it radiates into space? No. The light actually expands in a 2-D wave. So it falls off as the square of distance. But if we consider 2 sources near each other, they both spread out the same amount by the time they get to us. Therefore there is a linear relationship between energy and apparent brightness. (On top of the inverse square relationship to distance.) Hopefully this helps!