links for 2008-10-22

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I think it is time for me to talk about energy. My ultimate goal is to give some insight into the many stories about perpetual motion. To do this, I will first talk about the fundamentals of energy. **What is Energy**
So, what's the deal with this one? startswithabang.com reader Scott Stuart asks the following question:
Having talked about force and fields, it seems fairly natural to move on to talking about energy, next.
Are you curious about the future of energy use? Will you also be in Colorado this weekend? If so, this is one meeting you won't want to miss: