Treegonometry creates perfect Christmas tree

'Green Wheel' Would Produce Electricity From Running

An Affordable 282 MPG "1.0-litre Car"?

Diesel to Power Telecom Towers

Solar Lantern - a business plan

energyEGG® - a smart occupancy sensor that helps reduce power consumption

BioLite -clean safe cooking with wood. Generates electricity to charge cell phones, lights off-grid

Natural computer keyboard made of wood and moss

Hi-tech recycling bin

A great toy to own :-)