they could store solar power in a battery then use that at night and have a back up batttery just in case
204890
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.
191404
do something on alternative energy or fuel sources. or hybrid machines.
579016
Discarge Battery, Take the Battery Out, and store in Fridge, Fully Charge before using again.
189335
in Solar Battery!!\n\nmuahahahahahahaha
338157
Actually, for this idea to work, the "windmill" would have to be mounted on the roof of the car and it could be used to recharge a battey while the car is parked.  If it was in use while the car was moving, it would increase drag and waste energy.  The car would have to be parked in a very windy location or for a long time between uses to charge the battery enough for a reasonable trip.  The battery would have to be much larger than the type used to start a car because it must store far more energy for a trip.  If you have an idea for a patent, you must file an application within one year of making a public disclosure.
135640
I think it would be wise to do it on the side or have a back up plan.
360316
1) easier to move\n2) takes up less space\n3) can be used anywhere\n4) in a power outage, you can still use it until the battery dies\n5) many options in a small package
207158
Well, if you can't even spell "solar" I doubt you would have the skills to mount and solder more than 2,000 4"x4" solar cells together, add blocking diodes, and wire the whole thing up in a weatherproof frame without breaking about half of the delicate little buggers.  If you need that much power, you're not going to save much of anything by trying to build your own.  Buy some ready made.
97203
Sounds like a great science project.  If they can, the next question would be why would they need to?
268327
If someone had the abilities to do that then they should rig something up on their own and forget the electric co. all together. Count me in!!!
187527
The heart would be the power supply.
527641
Depends of if the body temperature is the same as the surrounding, for example a snake that has been sunbathing for a few hours before dark will remain warmer than its surroundings for some time, so thermal immagery devices could have limited use. I'd say a flashlight or headlamp would probably be just as much use in most cases tough.
457019
a battery converts __chemical_____ energy to __electrical_____ energy.
563194
Yes.   Piece of piss.   You only use a mower about 1% of the time at most, so even a fairly small solar panel should be able to keep it charged.   Just check that the panel's output voltage matches that of the batteries.
35925
go stock up on some double A batteries ..
603492
The batteries are still workin
55561
yes because the light will take some of the vitamin power.