Archive for the ‘Other - Science’ Category

What energy/work is done by those people riding a running rollercoaster car?

Sunday, October 4th, 2009

galadriel asked: What energy/work is done by those people riding a running rollercoaster car? Will the work/energy be any different if the rollercoaster car is empty but still running? It what way will it be different? Explain scientifically... Thank you and God bless!MITCH

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What is the best way to charge solar powered garden lanterns quickly?

Tuesday, August 12th, 2008

Paul S asked: I have a set of self solar lanterns in the garden should I use for a game. The man at the warehouse said to leave it completely ... (I 'm in England, so that' s wrong never happen!) For three days before switching. However, I need that ...

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How efficiently do solar cells work with artificial light?

Sunday, May 18th, 2008

Odysseus J asked: For example, a computer using a solar battery will operate the light without the artificial sun (I think). As this operation efficiently? What kind of bulb is the best?EDWARDO

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