who thinks my invention is good solar powered traffic lights ?
454478
They have done studies that unless the lights are in the South West there is not enough sunlight throughout the year to make an efficient product. I think it was England who first attempted to use the solar powered lights. But they have far more foggy/cloudy days. So I am sorry solar powered traffic lights are not a good idea.
871717
You can first buy the solar panels and then you get the plans from the Internet and you build such items as solar powered cars, water distillation station, etc..  The sky is the limit with solar power!!
442134
Sure they can be useful.  If you're camping where you don't have access to electricity, for instance.\n\nThere are problems of course.  A bright flashlight uses a lot of power and there isn't enough surface area for solar cells to capture much energy throughout the day.  So you get a few minutes of use from a whole day of charging.  The newer LED flashlights go a long way to fixing that, though.  And usually it's not a problem because you don't usually need flashlights every night for long periods of time.\n\nAlso you really would want to charge the flashlight outdoors because there isn't very much energy in indoor light.  Sure it's enough to charge a tiny calculator battery, but flashlights need a lot more.  But leaving it outdoors exposes it to the heat/cold/rain/snow/wind/thieves.\n\nDon't store it in the toolbox. :)
514057
Fascinating facts about the invention\nof the Traffic Light by William L. Potts in 1920. TRAFFIC LIGHT \n \n Even during the horse and buggy days, traffic in big cities was often heavy. Police officers had to be stationed full time directing traffic at busy intersections.\n \nThe world’s first traffic light came into being before the automobile was in use, and traffic consisted only of pedestrians, buggies, and wagons.  Installed at an intersection in London in 1868, it was a revolving lantern with red and green signals.  Red meant "stop" and green meant "caution."  The lantern, illuminated by gas, was turned by means of a lever at its base so that the appropriate light faced traffic.  On January 2, 1869, this crude traffic light exploded, injuring the policeman who was operating it.  \nWith the coming of automobiles, the situation got even worse. Police Officer William L.  Potts of Detroit, Michigan, decided to do something about the problem.  What he had in mind was figuring out a way to adapt railroad signals for street use.  The railroads were already utilizing automatic controls. But railroad traffic traveled along parallel lines.  Street traffic traveled at right angles. Potts used red, amber, and green railroad lights and about thirty-seven dollars worth of wire and electrical controls to make the world’s first 4-way three color traffic light. It was installed in 1920 on the corner of Woodward and Michigan Avenues in Detroit. Within a year, Detroit had installed a total of fifteen of the new automatic lights.\nAt about the same time, Garrett Morgan of the United States realized the need to control the flow of traffic. A gifted inventor and reportedly the first African American to own an automobile in Cleveland, Ohio, he invented the electric automatic traffic light.   Though it looked more like the semaphore signals you see at train crossings today. \n\nMany others had obtained US Patents for Traffic Signals, some as early as 1918. But Morgan's Patent was purchased by General Electric Corporation and provided the concept on which GE's four-way traffic lights are based.
175649
It will need some kind of electric source, or it won't do anything. They are really cool, though.
629702
A steam engine.  Please, the  1800s are over.  Have you heard of solar power and/or wind power?
140137
I guess you need 3 products and the associated technologies that made them possible.\n1. The development of axial rotation (and not the wheel only) made possible modern road transportation.  Cars, etc.\n\n2 Farming made possible to feed growing population, and the corn flake made possible to store for longer periods of time a dry food that only requires milk and that is why is so popular around the globe.\n\n3 Solar energy is considered a technology of the future, although we now have several solar panes that are efficent. They provide clean energy and are cost effective in the long run.
57097
The bulb could be getting ready to burn out.\n\nOr the street light could be "cycling". Sometimes, a streetlight is installed in a bad location. When it gets dark at night, the light comes on, but the light from the bulb is reflected back to the photocell. The photocell senses the light and thinks it's daytime again, so it shuts off the light. When the light shuts off, the photocell senses that it's dark again and turns the light back on. Then it keeps cycling on and off. Each cycle lasts about a minute or two depending on the manufacturer of the photocell. This usually happens with the streelight is near a shiny marble wall or a building window.
822817
the above one of solar cell is gr8\nor you can make a model of a wind mill, attach it to a motor and then, artificially, rotate it to produce current in the motor and connect it to a small bulb to show it lighting
29771
This is cause by a blackhole that is inhabiting your shadow. The gravitational force of the blackhole sucks the light from street lamps and causes a temporary popped circuit. Once you pass the light should come on after the breaker cools.\n\nWhat is unfortunate is that SLIders have a negative effect on traffic lights and sometimes actaully make the red lights last longer or the green lights shorter. Oddly SLIders have no effect on yellow lights whatsoever.
333412
Use of beaming for transportation. \n\nWe need something to get rid of this crazy traffic...!
118060
It is used to generate electricity.
1060259
The cameras around my city are at intersections that are well known for accidents, red light runners & speeding.  I don't care if the cameras are there.  I'm smart enough to read the Photo Enforced signs posted & I also obey all traffic laws.  I've been driving for 17 years, NO tickets for anything.  Sure, several accidents, NO points on my license as well.  My insurance company gives me a discount for this too & it's well worth it.  Anyways, I think the cameras are a great idea & very helpful.
613514
Someone recently sent me a news clip about a man who's developed a blowtorch that runs on water.  He also modified his Ford Escort as a gasoline/water hybrid-- he's patented his technology and has started a company that's been contracted to design a water fueled Hummer for the military.  Totally clean burning and unlimited in supply.  The man should win some kind of Nobel Prize.  \n\nMaybe Google waterpower or something??
192099
I guess it depends on the traffic, or how many lights you get stopped by.
90133
The human brain has already lit up the city.  It now has to figure out how to keep the lights on with the cost of energy going through the roof.\n\nMaybe wind or solar power...
853477
I would recommend investing in some bright movement censored lights. This will alert you to any movements. For the day time use movement censors with buzzers.