Survival Scrapbook, Volume 3 |
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A40 road acid aerofoil alcohol ammonia approx axle batteries BIBLIOGRAPHY BIO-GAS blade boiler boiling CALOR GAS circulation condenser converted cooker cooking cool cost cu.ft cuft cut here cut cylinder designed device diameter digestor distillation domestic drum dung efficiency electricity engine Ethyl alcohol fermented fibreglass fingers fire flat focusing collector Francis Galton fuel gallons gasometer give glass heat pump heater hole home-made horse power hot water insulation internal combustion engine lamp light logs London machine mash metal methane method mill Note operation Photosynthesis pipe plant Portable possible pressure produce prop propane propellor pulley SAVONIUS simple slurry SOLAR ENERGY SOLAR ENGINES sources Stabb steam steel storage STOVES sugar supply surface tank Tech.Report temperature TILLEY LAMPS tower TREE PUMP tube turbine vanes waste water wheel WATERMILLS wheel wind speed windmill wood yeast