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340 results found
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displaying 103-105 |
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| Let's annoy the car thieves 
Instead of having car alarms that go off whenever someone bumps into the car or a strong wind blows, why not have them go off when they sense the car has been put in motion. Ramping up the decibel level inside the car would give the thief a little extra trouble for the trouble he put you through. As long as you remember to de-activate the alarm before driving off yourself this solution shouldn't cause you any headaches. Reward: None required. 
There are 2 replies to this idea
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| Electronic Component Tattle-Tail Stickers
There are chemicals that change color with temperature (mood rings) and can be designed to coat paper stickers so that when a certain temperature threshold is reached, the sticker will change from green to red (for example) and not change back. We also know that most electronic components will increase in normal temperature when a failure occurs. With a sticker designed for and affixed to all components at point of manufacture, a failure would become VISUALLY apparent. Many TVs, monitors, stereos, etc. are tossed simply because an intermittant problem won't happen when the tech has it in the shop. Many are discarded because the problem is so difficult to troubleshoot that the estimate is too high to be worth repairing. Many COULD be repaired by the home do-it-yourselfer with a soldering iron if he/she could visually see the component to replace.This invention would make these things possible.I thought of this idea when I found out that my $2000.00 21" monitor that died just out of warranty doesn't have a schematic available from any source in the world -- not even the manufacturer. In searching, I found that to be a common industry problem these days.So,... anybody know any chemist out there that would like to tackle this one?Reward: The NAME of the slave labor 7 year old that put that bad capacitor in my Chinese made monitor. ;-)5/5/03 Update: My monitor problem was a 10M ohm wire-wound resistor that burnt open (like a blown fuse) without leaving a mark on the body of the resistor. This means that instead of stickers, some components capable of 'spot' failures should be completely coated with a translucent color changing chemical coating. That would have made this problem visually detectable.
There are 2 replies to this idea
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| Handheld Distance Calculator
This is a handheld device that is used to measure the distance from a fixed point of origin.A known point on the earth's surface is taken as the device's reference point (acceleration, velocity and displacement zero). As the device is moved from this point, it should measure its acceleration and time. The distance travelled can be calculated using equations of motion in physics. Thus at any point in time, the device knows its position relative to the reference point.This device can be used as an alternative to GPS in cars etc. Also u can measure how much distance u have covered while sitting in a plane, train, bus etc. Also it could be used to trace a path which it is moved through. The difference between this and a car odometer is that it does not require a moving wheel to touch the surface over which it moves.Reward: Somebody tell me this is a good idea and develop it. Give my name a mention if u do :-)
There are 4 replies to this idea
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