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273 results found
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| Remote planes 
Just about incidents like the WTC disaster maybe they should hook some device that can let the people in the air traffic control be able to shut off control from the cockpit and it has a screen in the air traffic control and they can control it from there, it would stop a lot of hijacking incidents from being disastorousReward: Feedback 
There are 5 replies to this idea
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| Active sonar cancellation
Perhaps if we can outfit submarine hulls with two layers instead of one, we might be able to cancel out the reflected waves. I have already measured out how thick the gap between the hulls should be: x(lambda)/4; where x is any odd integer. In this way, we will recieve reflection where the waves have the least energy, which is at the equilibrium.The first layer should be any kind of material able to transmit 66% of wave energy and reflect 33%. 66% of the wave energy is transferred into the gap between the hulls, where it is then reflected yet again through the first layer. This accounts for 66% of 66% of the initial wave energy. since it most nearly matches that of the originally reflected 33%, and since the spacing is correct so that dephasing might occur, most of the waves will be cancelled, creating a much, much weaker sonar signal. It might be small enough to even avoid detection by sonar systems aboard submarines. If no such material is available, perhaps ordinary steel with holes would work.Of course there is the significant problem of not knowing the wavelengths of the many thousands of sonar devices on submarines throughout the world. Reward: the navy's recognition of a feasible technology
There is 1 reply to this idea
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| Pressure sensitive Break lights
While driving, we often have people riding on the brakes but still maintaining a speed close to the care ahead of them. This causes people to then hit there brakes and causes an unsafe environment for all vehicles behind the person riding the breaks.When a member wants to lightly keep their foot on the break while riding on the highway or street road, the break light would be a very dim light, and then when more pressure is put on the break light it will brighten to warn of an impending stop. When someone is to slam on the breaks there would not be a dim to bright, it would accelerate to bright light caused by the drivers pressure.I believe that this would be a very beneficial addition to cars in all countries with the information received by the following driver reading the brightness of the cars ahead of it, thus reducing accidents caused by the breaking habits of other break riding drivers and people who like tailgate. You will have more warning.
There is 1 reply to this idea
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