Archive for category How to…
DIY Girl From Ohio Builds Her Own Electric Bike From Scratch – See How
Posted by Ovidiu in Electric Vehicles, How to... on July 6, 2010
It looks like men are not the only ones who love technology, welding, batteries and electric motors. After presenting the example of Eva HÃ¥kansson, who plans on building an electric motorcycle, I stumbled upon the story of another girl, Jennifer Holt, from Columbus, Ohio, who built her own electric bike.
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Jake Explains How to Build a Super-Cheap Solar Water Heater
Posted by Ovidiu in How to..., Solar Power, Video on June 29, 2010
Solar water heaters are not a new idea, but people who often complain about rising energy prices should be reminded to use such devices to help heat their homes and take a shower, too.
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How to Measure a Stirling Engine’s Efficiency (video)
Posted by Ovidiu in How to..., Stirling engine, Video on May 21, 2010
The next video shows a Stirling engine while working to achieve its best, powered by a 70W light bulb. The poster also shows how he measured various parameters of the engine, like speed, torque, input/output power.
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DIY: How to Make a Solar Cell at Home From Readily Available Stuff and… Blackberries
Posted by Ovidiu in How to..., Solar Power on April 13, 2010
A very neat experiment that anyone with some skills can do in the garage or kitchen is creating a solar cell out of blackberry juice and titanium dioxide (and several other components).
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How to Build a Small-Scale Hydroelectric Generator
Posted by Mircea in How to..., Wave power on March 9, 2010
If you want to produce electricity using a river near your home, the best way you can do it is to build a small-scale hydroelectric generator. Often called as a low-impact hydro, micro-hydro or run-of-stream hydro generator, this system is not very hard to build.
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DIY 3D Solar Panel Powers Electric Motor From 2 LED Flashlights
Posted by Ovidiu in How to..., Solar Power, Video on January 21, 2010
Ryszard says it’s much more efficient to assemble solar cell this way than put them directly into light, where you’ll lose a lot through reflection back into the environment. Some recently invented anti-reflective coatings may even accelerate the light’s absorption into the solar cells. This is one of the advantages.
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How to Build a Gravity Engine: The Pinwheel Free Energy Generator
Posted by Ovidiu in Free Energy, Gravity, How to... on January 10, 2010
Pinwheels have been used for many things along history. One of the most interesting uses I’ve ever seen is making a pinwheel act as a free energy generator, powered by gravity.
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DIY: How to Build Your Own iPhone Solar Panel Charger With Just $50
Posted by Mike in How to..., Solar Power on November 1, 2009
The construction of this universal solar charger is very simple and cheap(only $50) . You don’t need to have any familiarity with electronics or prior circuit knowledge. It can be used to charge any device via USB.
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DIY: Rick’s Cheap Solar Panel Installation Powers His Home
Posted by Ovidiu in How to..., Solar Power on July 13, 2009
A lot of people want to be green in using energy but they don’t know where to start, or they don’t have enough money/time at their disposal to actually start making something useful.
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Sahimo: Hydrogen Powered Car Consuming 1L/568 km!
Posted by Ovidiu in Electric Vehicles, How to... on July 6, 2009
Something truly amazing comes from Turkey: some students from Sakarya University just released a prototype of what seems to be a car… but a car that consumes no more than a liter of hydrogen in a range of 568km (355 miles)!
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