Interesting

"Berkeley scientists think they have found the source of a mysterious hum that reverberates through the Earth, too low for human ears to hear....

...They [the source of the mysterious hum] put out very little power -- about as much as a couple of 100-watt light bulbs, Romanowicz said."

They do put out power, though. One solar cell collects very little power, one wind mill is of limited use, but joined together with hundreds or thousands of other small power plants you have a really good source of renewable power.

I think that these are interesting, I suspect that what ever machine was going to try to harness these waves would have to very large, but it would be interesting to see this in action.

via The agitator

cube