David Bainbridge

Keeping Cool Without Air Conditioning, Part I: The Cool Pool

Staying cool without an air conditioner is possible. It is easier in hot, dry areas. A building that gets too cool in winter is a problem, but occupants can add a vest or jacket and be comfortable even with temperatures as low as 10-15°C. A building that overheats in summer is more problematic — even with minimal clothing it is hard to stay comfortable as the temperature rises above 27-30°C. […]

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Get Started With More Efficient Irrigation Systems

Introduction The world water crisis is undisputable, yet surprisingly little work is being done to promote, develop and understand more efficient, low cost irrigation systems. Drip is considered the ‘choice’ but is ill suited for remote areas with low technology and unpressurized, unfiltered water systems. The systems described here will work well and use less water than drip. Capturing and utilizing any rain that falls is also desirable. First, make […]

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