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156 results found
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displaying 67-69 |
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| Submersable generator 
This idea is a permanet magnet generator (pmg) that is held under water by an anchor and rope. The current of the river, creek, or ocean drives the propeller and provides almost invisable noiseless free electricity. Reward: clean air 
There are 7 replies to this idea
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| Friend locator
It would be interesting if our cellphone or PDA will beep when there is a friend nearby. I think it's possible by using bluetooth technology, but have no idea. Anyone know similar technology existed?
There are 2 replies to this idea
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| Off Peak Power
Usually power companies have lower rates during a certain time of day, why not have a home device that charges up during off peak hours, then the home uses that electricity during peak hours. Maybe as simple as a rack of car batteries, or a flywheel or large capacitor.Reward: We all get one, and fewer polluting power plants are built.
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