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1 Calorie
heat necessary to raise the temp of 1 Kg of water by 1 degrees C
1 KWHR
3.6 E 6 joules
1 BTU
1055 joules heat necessary to raise the temp of 1 lb of water by 1 degree F
1 KG chemical fuel
1 E7 joules/kg
1 KG matter-antimatter
1 E17 total matter antimatter annihilation
1 kitchen match
1 BTU
1 HP
750 watts 7.5 horses do what one man can
1 person's energy per day
2000 C/day 100 Watts
1 person's maximum power
100 Watts continuous, 400 Watts peak
US & SC year round Average solar power (day, night, rain, sun)
200 W/m^2
Passive Solar efficiency
50%
US population
300 million
Earth population
7 billion
SC population
4 million 1% of US
1 revolution
2 pi radians

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