DIY Solar Panels

To build a four wheeled vehicle powered by entirely one or two self-contained rubber bands. The vehicle may not be more than .30 meters long. The vehicle mus travel and stop exactly 2.5 meters away from the starting line.

I cannot use the rubber band to shoot the vehicle forward or push it, but use the rubber bands to wind the car up.
The wheels must be constructed
I cannot use any devices, kits or toys that were designed for rubber band powered machines.

If anyone could please give me some ideas with the physics project I would greatly appreciate it!

Thank you so much!!!

Travelling and stopping exactly 2.5m from the starting line sounds likes the hardest part. For that, you probably need some internal measuring device. I’d suggest a string cut to that length that is unwound off one spool and wound onto another (perhaps the front and back axles). If you use the axles to wind the rubber bands as well, you can get them to store the energy needed to propel the car. You will need to keep the car light enough that the stored energy in the rubber bands is enough to propel the car over that distance. That’s about it.

My grade is going to washingyon dc for a few days, but my friends dont want to bring their ipods/iphones, aka my roomates, so i figured i’d make one. Couldnt i buy a crank generator or solar panel then hook the power wires to the power wires of an ipod cord?

you can use any phone charger with a usb port. i have charged my ipod with a old lg phone and and blackberry usb to ac charger. heck you could go to some cheap parts stor and get any usb to ac thing and plug it in to the wall to charge your ipod.

If I brought a solar panel kit for my holiday home could It power something for 24-7 or does it have to charge first?

Does the sun shine on your home 24-7?

You usually net meter a solar panel, selling the power to the utilities and buying it back during the night. It’s cheaper than batteries and you get to sell what you don’t use.

Temperature difference between air and objects can generate enough electric power to rotate a motor.
Objects:cold reusable refrigerant pack, hot onigiri(rice ball), and warm hands.
I have disclosed the design which is published on Jan. 25, 2008 from Eleki-Jack magazine in Japan:

http://www.eleki-jack.com/

where two peltier elements are used.
This video has no sound.

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Technorati Tags: ELECTRIC, gadget, GENERATOR, hands, harvesting, onigiri, POWER, thermo

I show you how to charge a 15″ Macbook Pro using a simple solar set up that I put together for less than $350.
45 Watt Solar Kit from Harbor Freight – $199
Deep Cycle Battery from Camping World – $89
750 W Power Inverter from Harbor Freight – $49
Power from the Sun Gods from anywhere on the road – Priceless

Buy this kit here: http://amzn.to/qJorxx

Website: http://bit.ly/qt7SOd
Twitter: http://bit.ly/pZpeo5
Facebook: http://on.fb.me/oTfcv1

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Solar Panel build out DIY 5×6 Solar cells
Check out how easy it is to build a solar panel.
In this video Im stringing 5×6 solar cells together for a total of 133 watts.
This is a simple DIY off grid project.
Check out my other solar video for more details.
All the best,
-Pete
Mixcat.com

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Residential Wind Turbine Kit – get the more information on free energy at http://freeenergy2k.info

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Working hydro homemade low rpms permanent magnet generator. 22″ dia. 12 volts at 40 rpms

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http://www.amazon.com/gp/product/B004IYJOFQ/ref=as_li_ss_tl?ie=UTF8&tag=jimmz-20&linkCode=as2&camp=217145&creative=399349&creativeASIN=B004IYJOFQ

Solar 2 Go ISB-RL01 10 Watt Portable solar power kit

Power when you need it, where you need it. Whether you’re drawn to Solar Power for the cost saving benefits or you’re trying to live a greener, more sustainable lifestyle, solar systems are more affordable then before. Power when you need it, where you need it.

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http://SolaroEnergy.com
1-888-355-5SUN

Solaro Day™ daylight system can also be used with a Night & Day Light Kit. The Solaro Day™ Night & Day Light Kit gives you the opportunity to use the light throughout the day, at night or in cloudy weather conditions. You have full control of when the system is on or off and you may select between 2 power sources, the sun or the grid. (SD-ACKIT)

Starting out at the roof level, Solaro™ has designed a line of special proprietary solar panels that collect sunlight, even on cloudy days, and convert it into safe low voltage DC power. We send that power to a Solaro Day™ daylight simulator for use inside your home or office.

The Solaro Day™ daylight simulator will create the same light that a traditional or tubular skylight creates but without the costly installation including the cutting of a large hole in your roof or ceiling. You will also be able to experience the sun up, sun down and cloud movement inside when your Solaro Day™ is powered directly by the solar panel, just as you would experience with a skylight.

The Solaro Day™ typically requires only a 1/2 inch diameter hole drilled into your roof for the interconnect cable making the installation fast and simple!

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Technorati Tags: alternative, day, discovery, DIY, earth, EDUCATIONAL, electronics, employment, ENERGY, environment, GREEN, grid, light, LIGHTING, off, PLANET, POWER, renewable, science, SOLAR, SOLARO, survivalist, TRAINING