The Green Optimistic

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.

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.

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.

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.

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.

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)!

Discover how these guys succeeded extracting TiO2 from a donut and make a solar cell out of it! No kidding!

What can you do with a steam powered engine, a LEGO toy kit, some wood sticks and a USB cable?

One simple way of making hot water has been perfected by a blogger on thesietch.org, and it relies on a simple and easy to find piece of junk: an old refrigerator!

Electric motors have simple designs, are easy to operate and have a great resistance to various environments. That’s why they are to be chosen as alternative to internal combustion engines. This is a trivial experiment showing how you can feel you made a real electric motor yourself. Just for fun.

What you are going to see in this video is nothing you don’t know. In fact, I urge any weird-science reader to try and make the device from the video below, respecting the pictured details. I’ll make it myself from a hard drive plate and a used scotch tape support. Let’s see how much time it works, and if it can be improved.

In this consumerism ruled times, the world needs to know ways to do stuff. When electricity generation is predicted to become more expensive (it’s like they predict an invasion of electric vehicles), people need to build their own power generating systems for their independence.

This is about how to build a solar furnace out of a satellite antenna dish and mirror broken in many pieces. As you may know, satellite dishes have a focal point (that is a point in which the electromagnetic energy focuses at its maximum power).

Here’s a method of producing a battery out of some Cola, salt, aluminum and copper coins. It lights a LED and it can be an interesting source of free energy!

Today I found another DIY project for generating alternative energy, by using the wind. It is a Vertical Axis Wind Turbine (VAWT), and it works by the same principle those huge wind turbines do, but they are much more easy and less expensive to build.

1. First of all, remove the aggressive tendency from your driving habits. I admit I myself like to be aggressive sometimes, it gives me chills, diesel cars have a lot of torque at low rpm, but from what I experienced that go fast-full stop-go-fast attitude costs me about 2 liters more per hundred kilometers. Sometimes [...]

I recently found a PDF describing a step by step method, with pictures, of how to make your own wind-powered free energy to power something up: a light bulb, your TV, laptop, or a small device. Or even charge a battery to light your house during the nights. Here it is. Enjoy!

The ACCESS, as you can see in the title, was developed by Global Research Technologies in Tucson, Arizona. They made a sponge-based system that filters out CO2 from the air and releases clean oxygen.
The system has been made in a smaller-scale unit, that can momentarily capture only less than 100kg of CO2 per day, but [...]

There are many ways for building of a hull, such as using frame of square lumbers or using F.R.P. Here, we build the hull using piled up boards of balsa. This can be built easily, and can stop the water leakage easily.

Build a Fuel Cell with a couple of Band Aids, an MEA and a few scraps of stainless steel bug screen by Gavin D. J. Harper.
The story as to how this design came into being is probably a little too much information, but worth sharing none the less. Having spent some time playing with Fuel [...]