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Politics : The Environmentalist Thread -- Ignore unavailable to you. Want to Upgrade?

To: FJB who wrote (25362)	10/2/2009 7:20:13 PM
From: Maurice Winn	1 Recommendation Read Replies (1) \| Respond to of 36918

Yes, that's quite a wave waiting to happen. They don't understand wave mechanisms but that's irrelevant really. <With the leading wave in front and crests pushing it on behind, it would sustain the power for the nine-hour journey to the American east coast. > One of my favourite things at engineering school was the Airy wave theory which describes wave action. As the wave travels from the source, which in that instance is a point source, more or less, its amplitude reduces. So the wave wouldn't still be 100s of metres high when it arrived at New York. You can do tests of how much waves shrink as they propagate from a point source by dropping pebbles in a pond and watching closely. The energy in a wave at the point source is the same as the energy in the wave after it has spread out to a big circle, so at any point, the size of the wave is much less. The article goes on to do a rough estimate of the size of the wave by the time it spread out across the Atlantic to Florida etc. It would be a lot worse than the wave from global warming. Mqurice