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Maybe It would makes more sense if I had said "excess body heat". Sucking the body heat from you is absurd.
In my first post I was implying that there is a First Law of Thermal Dynamics, albeit subtly. By that logic, a sweater that "sucks" energy from your body would me illogical to make because it would use just as much energy (and usually then some) to suck the heat from your body as your body makes.
That`s why electric companies don`t conserve the extra energy they make. It takes more energy to conserve it than to just let it pass through the power lines as heat.
Remember, when the solarsweater gets energy from your body heat you are also losing your body heat because the solar sweater is converting it to energy. That just defeats the purpose of a sweater.
After reading a line such as that, I have trouble taking the rest of the article seriously.
Oil won`t run out in my lifetime, but I`ll live long enough (I hope) to see more environmentally safe energy sources implemented into the mainstream. What a great article.