What to do in a failing civilization (html) (pdf for printing)
Overshoot in a nutshell (Malthus was an optimist)
Irregular thoughts on economic growth and related subjects
Population growth stops decreasing!
New Scientist feature issue: The Folly of Growth
Short Circuit: Richard Douthwaite's handbook for guerilla relocalization
Jay Forrester's prescription for cities
Oil Depletion
E.M. Forster's prescient short story (1909), The Machine Stops
The Bottleneck
Knots
Solar Cooking
Residential solar heating:
Single-pump drainback scheme for modest pump head in a tall house
Solar Energy Storage Wall for Passive Survivability
Organizing the air flow between a thermosyphon solar air heater and a thermal mass located above it
Solar air heater with attic heat store for 100% solar heating
Scheme for a 100% Passive 100% solar house for a cold climate
Free-standing column of stones for a heat store without fans
Buckley's Thermic Diode
Mechnix Illustrated article on the thermic diode
Check valves for passive solar water heating systems
Distributing hot water into a hot water heat store while maintaining thermal stratification
Shurcliff's scheme to create and maintain thermal stratification of solar hot water storage tanks
Larkin's anti-reverse syphon solar air heater
Entirely passive solar air heater with water store, auto radiator heat exchanger
Early notes on high solar fraction houses
Air lift pumps for solar water heating applications
Solar Water Heating
Self-pumping solar heating system with geyser pumping action
Sorensen's bubble pump for solar water heaters
Thermal mass of drums of water on top of a stack of concrete blocks
Miscellany:
Nuclear fusion and Robert W. Bussard
Wind Power Resources
Larsen truss for superinsulated house
How to increase the output of a nuclear generating plant by 20%
Heat Pipes
Solar Energy Links
Net Energy and Embodied Energy
My posts to the energyresources group (2 MB)
Christmas tree watering device
Simple inexpensive camera support for table top photography
Configuring Thunderbird on the Mac for Sympatico's pophm and smtphm
Fire starter
Sun and weather data for Ottawa, Ontario
Scutigera Coleoptrata
Montague's folding bicycle patent
Leslie and David, February 2009 (104 KB)
