Post History
Roughly, to get the brightness from that of the full moon to an overcast midday, you need to increase the luminosity about 4000 times (Wikipedia: Daylight). Thus you would have to bring in the sec...
Answer
Roughly, to get the brightness from that of the full moon to an overcast midday, you need to increase the luminosity about 4000 times (Wikipedia: Daylight). Thus you would have to bring in the sec...