62 results found displaying 1-3
      
aarthidhar
 India
Keyhole coated with luminous material Printer Friendly Version
There are several times when u fumble to fit the key into the hole. If the edge of the keyhole in the lock or on the door is coated with luminous material it can be easily found in the dark. No need for torch or any external light source.

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bullgod425
 USA
Never shovel snow again! Printer Friendly Version
Hate shoveling the walk-way, porch or driveway? Small heated coils that would run under your concrete walk way or driveway (heating the concrete or pavement just above freezing temperature to keep snow, or ice from building up, saving time, money and slipping and falling) would eliminate having to stand out in the cold and run a snow blower, shovel or the expensive daily bill of having someone plow for you.

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Sensible
 United Kingdom
Microwave home heating Printer Friendly Version
Hot water pumped through radiators is how many houses are heated, right? The water is heated in a boiler using electric or gas burners.... Well how about heating the water using microwave... if it's cheaper to heat a cup of water in a kitchen microwave oven, rather than on a gas or electric stove, then surely it's cheaper to heat the house boiler with a specialy designed microwave thing.
Reward: Fame and fortune. 

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