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Q & A: making light like sunlight

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Most recent answer: 04/08/2015
Q:
can scientis make the light ,same as SUN LIGHT ?how?
- anand inshan (age 33)
karnal ....haryana,india
A:

Yes, sunlight is just the sort of light that an object at a temperature of about 5800K gives off, if the object is good at emitting and absorbing light. A tungsten wire at the same temperature gives off very similar light. An ordinary incandescent lightbulb is not that hot, because the tungsten filament can't take that heat for long. A flashbulb, which gets very hot briefly, gives off about the type of light you're thinking of.()

Mike W.


(published on 04/08/2015)

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