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Easy options for making good decisions when building tubular-bell wind chimes from tubes, pipes, or rods.

Ocean Aero's autonomous underwater and surface vehicle, originally designed for defense purposes, aims to get offshore platforms back on production after violent storms.

The first-ever automated, foldable, inflatable wing sail technology was recently mounted on a merchant ship.

first to our brand new cnn orc polls. this is issue number one, the economy. and a surprising jump in the number of americans who believe the economy will eventually get better. take a look at this. when asked about what economic conditions will be like next year, 60% now say they believe they will be good compared to only 39% who say conditions will be poorer. last fall when we asked the same question, those numbers were very different indeed. only 39% saying things would get better in the year to come. we sent our own joe johns to the key battleground state of ohio for a closer loo...