
Book Category: Free ebooks


Sustainable Energy — without the hot air
About the author David MacKay is a Professor in the Department of Physics at the University of Cambridge. He studied Natural Sciences…

The Complete Guide To Wood Finishing
Wood finishing can be tricky and after spending hours on building your project you want to be sure that you get the…
How to Build a Better Home
Did you know the building decisions you make today will affect the environment and your wallet for yearsrnto come? That's why you…

A Heat Transfer Textbook
High Quality illustrated textbook. This book is meant for students in their introductory heat transfer course —students who have learned calculus (through…

Composting Factsheet
Composting is the breakdown (or decomposition) of organic material (anything that was once alive) in the presence of oxygen (i.e. aerobic decomposition).…

The Lost Journals of Nikola Tesla
Tesla is preceded in greatness only by Michael Faraday who in 1831 rocked the scientific world with his discovery that magnetism can…
200 watt permanent magnet wind generator
This manual describes how to build a 'permanent magnet generator' (PMG). We can also call it an 'alternator', because it generates alternating…

Brakedrum Permanent Windmill Plans
Brakedrum windmill plan by Hugh Piggott. 32 page manual showing how to build a permanent magnet alternator. Not the best reproduction of…

Wind Generator Factsheet
Wind generators are devices that produce electricity from the power of the wind; inside the body of a generator, there is a…