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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?

To: Alighieri who wrote (681449)	10/28/2012 12:44:28 PM
From: tejek	Read Replies (3) \| Respond to of 1572913

Romney Campaign Exaggerates Size Of Nevada Event With Altered Image At best, the official Romney Instagram account posted a really bad panorama. buzzfeed.com

To: Alighieri who wrote (681449)	10/28/2012 6:59:52 PM
From: Tenchusatsu	Read Replies (3) \| Respond to of 1572913

Al, Are you talking potential or current implementation? Potential. There is only 1 kW of power (energy/second) in a square meter of sunlight at high noon on the equator. You would need to harvest 100% of that energy for 36.6 hours straight in order to equal the energy content in one gallon of gasoline. Of course, we can't even harvest 100% of that energy. Current efficiency of commercially-available photovoltaic cells are somewhere in the low teens. Researchers report that in a lab, they can get up to 40%, but those are under very controlled conditions with high intensity light. Getting there commercially is a real challenge. Wind isn't much better. Tenchusatsu