Some Useful Links

EcoRenovator – Heat Pump Forum  –  A great site full of interesting articles about technology of ages past

The Museum of RetroTechnology  –  Just what it sounds like  –  A great source of book pdfs.  Punch up refrigeration published before 1935!

Project Gutenberg – 42,000 free ebooks for kindle, android and ipad  –  Pictures and descriptions of flywheel explosions!

BuildItSolar: Solar energy projects for Do It Yourselfers to save money and reduce pollution

.  –  Short, but funny!

. – Videos from the World’s Best Conferences and Events  –  A great place for speeches and lectures

TED: Ideas worth spreading

Metanoia Films  –  Some excellent free documentaries

— Watch Now  –  The film ‘Earthlings’.  About animals and our relationship with them.

Top Documentary Films – Watch Free Documentaries Online

Documentary Network – Watch free documentaries and films online

Watch Free Documentaries Online | Documentary Heaven


Kickstarter   –  Fund really cool projects.  Crowd source investment.

What’s Mine is Yours: The Rise of Collaborative Consumption

Open Source Ecology  –  Great open source project producing industrial machines  –  News publication of the Internationalist Socialist Organization

Professor Richard D. Wolff | Economics Professor  –  The website of the Marxist economist.  Excellent speaker!

The GNU Manifesto – GNU Project – Free Software Foundation (FSF)  –  Definitely worth reading

Why “Free Software” is better than “Open Source”

The Case for Open Source Appropriate Technology

Richard Stallman — On “Free Hardware”
Open Design-Based Strategies to Enhance Appropriate Technology Development – Interesting, but a little shady.
An article by an inventor on why he does not patent


Truthout  –  Some great insightful articles.

Haymarket Books  –  A book publisher with some great titles.


HVACR Heritage Center Canada – An incredible collection of refrigerators and other equipment with hundreds of pictures.

Intro / Bitzer Home  –  Refrigeration compressor manufacturer, open drives

RParts –  –  A source of refrigeration parts including open drive compressors

Online Refrigeration Books

Heat and Entropy  –  Some explanation of entropy

Law of Maximum Entropy Production  –  Very important!

Sunfrost Refrigerators – Manufacturers of low energy consuming refrigerators.  Expensive, but you get what you pay for in this case.

Article on Refrigerator Efficiencies and Improvements There Of  An awesome passive refrigerator, that utilizes the cold winter temperatures to freeze a block of ice for refrigeration year round.  It uses a simple counter-flow two-phase thermosiphon with radiator coils outside, and a working fluid to dissipate the latent heat of liquid going through phase change and freezing.  Ingeniously simple!



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