Tommy Moo: I work in alternative energy, and I will never understand the effort going into PV. You can spend millions of dollars developing Indium-Gallium-Arsenic doped semiconductor triple junction solar cells, and they will never, ever be as energy efficient as taking a tub of water, painting it black, pointing a couple of $30 mirrors at it, and setting a steam turbine above it. Solar thermal routinely achieves greater than 80% energy efficiency. It's insane to ever use any other form of solar energy.
Felgraf: This is why I hate gold speculators.Gold is really, REALLY useful for scientific purposes. It has a very nice surface plasmon resonance (an effect that sounds scary, but is fairly easy to explain) at the nanoscale, and, while silver similarly has a good SPR, silver oxidizes really friggen fast, and gold doesn't. Gold is REALLY REALLY handy with nanotech research. It's really easy to make it into a variety of shapes, too!
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