Archive for category How to…

How to Make Your Own Solar Cell From a Bunch of Scrap Diodes (Video)

Posted by Mihai Sandru in How to..., Video on May 10, 2012

Buying photovoltaic panels from the store and installing them can prove a costly process, so why not try making a pair of your own at home? Warning: they may not generate much electricity, while losing some of it, but if it works, wouldn’t it be a shame not to have tried? Especially since you don’t [...]

DIY: How To Build Your Own Ultra-Cheap, Portable Solar Panels

Posted by Mihai Sandru in How to..., Solar Power on March 9, 2012

Solar panels are “the thing” this year, so you won’t be able to escape them, no matter how hard you try. Why just not make your own then? You need 40 3×6 solar cells with tabbing wire (check out online stores for that), some Optix Acrylic sheet: $28 (32x44inch sheet) cut in 4 (brave the [...]

How to Build a Water-Powered Battery for Your Calculator

Posted by Mihai Sandru in How to... on January 3, 2012

14-year-old Instructables user Angelo S. Casimiro put up a step-by-step fabrication process that can be completed in as little as 10 minutes and can power a small calculator or a similar low-consumption device. If you’re just before an exam, but forgot to buy a battery for your calculator, you can always revert to …water! Yes, [...]

How to Prolong the Life of Your E-bike Batteries

Posted by Mihai Sandru in How to... on December 27, 2011

Wouldn’t it be great if you could free yourself from the high costs of gas and oil by turning to an electric bike or electric scooter? It sure would, but how do you make their expensive batteries last for longer? That seems to be the most important aspect when it comes to the wide usage [...]

DIY: How To Build Your Own Pedal-Powered Bike Generator

Posted by Mihai Sandru in How to... on December 19, 2011

If you were a puzzle fan in your childhood or if you simply love building things, you now have the chance to make a most surprising combination: a power-generating exercise bike out of a washing machine. So you get a double effect from a work-out: great legs and power for your house! A regular routine [...]

How to Build a Home-Made Fusion Reactor (No Kidding!)

Posted by Ovidiu Sandru in How to..., Nuclear Power on January 2, 2011

Get your white coat, your plastic gloves, glasses and turn off the lights… you have just made your first nuclear fusion reactor and you want it to work. At least that’s what instructables.com user Christensent suggests through a DIY posted on the site, aimed at those who want to do some exotic research.

DIY Girl From Ohio Builds Her Own Electric Bike From Scratch – See How

Posted by Ovidiu Sandru 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 HÃƒÆ’€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.

Jake Explains How to Build a Super-Cheap Solar Water Heater

Posted by Ovidiu Sandru 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.

How to Measure a Stirling Engine's Efficiency (video)

Posted by Ovidiu Sandru 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.

DIY: How to Make a Solar Cell at Home From Readily Available Stuff and… Blackberries

Posted by Ovidiu Sandru 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).

How to Build a Small-Scale Hydroelectric Generator

Posted by Mircea Sandru 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.

DIY 3D Solar Panel Powers Electric Motor From 2 LED Flashlights

Posted by Ovidiu Sandru 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.

How to Build a Gravity Engine: The Pinwheel Free Energy Generator

Posted by Ovidiu Sandru 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.

DIY: How to Build Your Own iPhone Solar Panel Charger With Just $50

Posted by Mihai Sandru 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.

DIY: Rick's Cheap Solar Panel Installation Powers His Home

Posted by Ovidiu Sandru 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.

site stats