340 results found displaying 82-84
    
nphawat
 Lebanon
Remote Controlled Door (RCD) Printer Friendly Version
Parts of this idea are being used for other purpose but here it is.
Suppose you are in you bedroom or working on something interesting and you don't want to be interrupted when suddenly someone knocks on your door.
The idea is to build or assemble from already present device a transmitter and reciever than can control the lock in the door thru a powerful magnet coil (or an alreday present mechanism can be found i the market-by mechanism i do mean the hole door mechanism).
The block diagram or sequence goes like this.
1)transmitter
2)reciever
3)switch (could be a sucession of a transistor and a timer to make sure the signal is present for enough time)
4)12v, 9v, 6v realy to control the coil mounted on the door or the door mechanism it self.
5)... (if any other steps required).
Apart from the bedroom door the device can be used mounted on any door whether the main gates or any another (don't know if the wireless accessed car work following the same or similar principle).
Reward: a prototype of the device would be given to the most helpful prs, post, comment(s). 

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19°

    
thinktankak
 USA
Stress O-Meter Ring Printer Friendly Version
Imagine a ring that could [u]extremely[/u] accurately measure a persons stress, and display it by changing colors (Black= super stressed, green= moderately stressed, blue= no stress). Now, when a friend is stressed out, you know to tread carefully before they blow up and when your friend has no stress you can smack some jokes around. Now wouldn't that be something!
Reward: A couple of these. 

There are 4 replies to this idea

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40°

    
butchmiller
 USA
National Water Pipeline Distribution System Printer Friendly Version
The technology has been around for thousands of years and is simple in construction. Every year the United States experiences droughts in various parts of the country and severe flooding in other areas. I propose that a series of water pipelines be constructed all over the US. As an example in the midwest, this year flooding is causing billions of dollars in property and crop damages. If a series of catch basins were established up and down the Mississippi and Missouri rivers and then directed into large (minimum 10 foot diameter) pipes which can then be redirected to the southwest where drought conditions are present it would reduce flooding and provide much needed water to the southwest.
This I know is very simplistic but our technology today can do this. The cost is expensive but over the course of a few short years it should pay for itself. Think of it major areas of the country that continue to struggle with droughts and fires could be reduced with a constant flow of water from other parts of the country where flooding occurs on a routine basis or is prevelant. Since the two major areas of water shortages are the south west (Southern California, Arizona, New Mexico), and south eastern US (Fl, GA, SC) I suggest start building pipelines to these two areas first.
Today as I write this the Mississippi is flooding and dumping into the Gulf of Mexico billions of gallons of water that could be utilized in other parts of the country.
To cut costs most of the pipeline should stay above ground.
Once pipeline established many areas of the country could see significant growth in farm production and bring in new businesses.
Just a thought and I hope to hear back from someone. Is this a crazy idea or what??? Please let me know.
Reward: Just would like to get recognition that I was the first to think of it. Maybe name the first pipeline after me or a name I recommend. 

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41°

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