Green Tech

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.

Whether it is winter or summer, one thing is certain – the temperature outside your home doesn't match the temperature within, and unless your...

A thermoelectric generator is a semiconductor device that transforms the heat difference between its two layers into electricity. It belongs to a class of materials called...

Generating energy to charge and power devices or household appliances for free is the ultimate dream of many. Here are a few ideas of...

Getting hydrogen from water is one of today's hottest and fastest-evolving areas in the renewable energy world. The basic methods for hydrogen production, though, have remained the same...

Free Heating? Really? Oh yes, and there is not only one way to get it. Here are two of them- fast, cheap, effective, and bill-free. It...

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!

Anybody who generates a significant amount of bio-waste, and especially those among us with country farms, often have one single dream- and that is...

Teenagers' minds work in mysterious ways. Because they are always flooded with ideas, in most cases they drive parents to silent insanity. However in...

Doyle Doss, a Northern California Inventor, has created a candle powered space heater. It sounds like science fiction, but it really is a simple and green energy device, that could save you a lot of money by only lighting a candle, in the long run. The CO2 output of a candle is too small to mention, and the materials that this device is made of are all here since the Earth exists.