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mking
 USA
Invisible clothes Printer Friendly Version
The time is coming. I want to where an ultra thin flexible plasma screen, or Lcd "suit" that has small stratigically placed wide angle cameras that broadcast the immeadiate sourrondings through out the entire suit. This I think would work well especially in the forest. This would definitely give camoflauge a new meaning. "Invisibility." You could even possibly ad software to it to mimic all kinds of different scenes, and colors.
Reward: Generous appreciation
 

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krishan arora
 India
Heat transfer from vehicle engines Printer Friendly Version
Harnessing the Waste Heat Energy of the Vehicle Engines
A very large part of the fuel energy that is consumed by the vehicle engines (and other combustion engines) is wasted in the form of heat which has to be removed perforce by forced cooling.
It should be possible to use this heat energy, instead of wasting it, in several innovative ways to add value to the vehicle and increase the overall fuel efficiency of the vehicles by taking over some of the functions which presently need to draw additional power from the engines.
A few examples are:
-A heat transfer liquid filled coil could draw away the waste heat from the engine and transfer it for warming up the interiors, and the wind/rear screens of the vehicles in winters/cold weather.
-The heat transfer system could be used to warm up snacks/food being carried for the journey.
-The heat transfer system could also be used to boil water, with probably some incremental heating, either for sterilizing the drinking water or for providing a hot cup of tea or coffee during the journey.
-The heat transfer system could be used to vaporize a low boiling point liquid and run a gas turbine, akin to the systems being used in the Ocean Thermal Energy Conversion method of energy generation. The power so produced could be used to run electric motors to drive the vehicles, thereby saving on fuel consumption. This of course would be possible only in fuel/electric hybrid vehicles. In other vehicles this power could be used for battery charging, heating/cooling of the vehicles, or for any other applications needing electric power.
-The waste heat energy from the engines could also be used as the main heat source for a mini Vapor Evaporative Cooling System to provide for air conditioning the vehicles. This may need a small supplemental heating up of the working fluid to achieve the minimum working temperature but the system would subsequently provide a much larger fuel savings by allowing for smaller engines to be used in the vehicles.
Reward: No reward wanted. In fact I may be able to offer several other ideas for those wanting to make use of the above ideas.
 

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Benny the Book
 United Kingdom
Bet Trading Printer Friendly Version
Mr. R. Leinwather's suggestion that (sports) betting is similar to stock trading gave me this idea: long-term bets with online betting services (not the same as going out to the books yerself, but oh well) should be able to be bought, sold and traded between patrons.
Say you've bet on Celtic to win the cup at 2 1/2 to one, and a month later, the odds have improved to 2 to one following the elimination of several other teams. You should then have the option of selling your stake to somebody else for slightly more than you invested. You would then gain a small (but safe) profit, and the other person would be able to buy into better odds than they would otherwise receive.


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