unknownskywalker:
How much energy? by GOOD How much energy whether electric, coal, nuclear, or otherwise - is required for a 100 watt lightbulb to run for a year , 24 hours a day?
How much energy? by GOOD
How much energy whether electric, coal, nuclear, or otherwise - is required for a 100 watt lightbulb to run for a year , 24 hours a day?
very interesting.