6B10.25 - Wein's Law - Planetary Sunlight Intensity
See also 6B10.25 in Optics.
Put the 1000 watt bulb on one Variac, the 100 watt bulb on another Variac and the 1/4th watt bulb on a 'D' cell battery. Turn them all on and observe the relative intensities. The scale of these intensities:
Intensity of sunlight as seen from Mercury = 1000 watts.
Intensity of sunlight as seen from Earth = 100 watts.
Intensity of sunlight as seen from Pluto = 1/4th watt.
- Prof. Thomas Hocket, "Luminosity, Brightness, and Distance", TPT, Vol. 52, # 1, Jan 2014, p. 6.
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