A lot of heat comes off a desktop computer. That has always bothered Russ Pratt, a mechanical engineer at the architectural firm CSHQA, and he waited 20 years for the opportunity to do something with all that energy. Tinkering around in his garage, he finally figured it out: he invented a mechanism that pulls heat from the computer and re-uses it to keep the CSHQA offices nice and warm in the wintertime and discards the extra heat in the summer. It makes up for almost half the office's heating, and cuts down on air conditioner use. Better get that patented fast, Pratt.
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