25 Jul '12, 4pm

After much trial and error, we’re finally generating power from the ocean:

After much trial and error, we’re finally generating power from the ocean:

Another ugly power plant. (Photo by Avery Studio .) The key to power generation is motion. Somehow, you need to rotate a magnet within a coil of wires (unless you’re using solar power, of course). The most obvious way to rotate the magnet is to use some sort of turbine to catch the flow of air or water or steam. The turbine turns, rotating the magnet. So for a long time, people have looked at the ocean and thought: Hmm. The ocean moves in two ways: through currents and through waves. For decades, as journalist Alexis Madrigal notes , inventors struggled to figure out how to translate wave motion into power. They sat buoys on the water surface, created shoreline installations, tried various random combinations of mechanical parts — all for naught. Well, not entirely for naught. The stories are at least amusing. With currents, there’s been more success. Yesterday, Ocean Rene...

Full article: http://grist.org/news/after-much-trial-and-error-were-fin...

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