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  2. Copper tubing - Wikipedia

    en.wikipedia.org/wiki/Copper_tubing

    While pipe sizes in Australia are inch-based, they are classified by outside rather than inside diameter (e.g., a nominal 3 ⁄ 4 inch copper pipe in Australia has measured diameters of 0.750 inches outside and 0.638 inches inside, whereas a nominal 3 ⁄ 4 inch copper pipe in the U.S. and Canada has measured diameters of 0.875 inch outside and ...

  3. Cloudbuster - Wikipedia

    en.wikipedia.org/wiki/Cloudbuster

    Alternatively, the rear of the tubes are joined to a single large diameter pipe and flexible copper hose. The open end of these hoses are placed in water, which Reich believed to be a natural orgone absorber. The pipes can be aimed into areas of the sky to purportedly draw energy to the ground like a lightning rod.

  4. Copper in renewable energy - Wikipedia

    en.wikipedia.org/wiki/Copper_in_renewable_energy

    Regarding copper, its weight in a generator will vary according to the type of generator, power rating, and configuration. Its weight has an almost linear relationship to the power rating. Generators in direct-drive wind turbines usually contain more copper, as the generator itself is bigger due to the absence of a gearbox. [53]

  5. Earth battery - Wikipedia

    en.wikipedia.org/wiki/Earth_battery

    The plates, one copper and another iron or carbon, are connected above ground by means of a wire with as little resistance as possible. In such an arrangement, the electrodes are not appreciably chemically corroded, even when they are in earth saturated with water, and are connected together by a wire for a long time.

  6. Pipe (fluid conveyance) - Wikipedia

    en.wikipedia.org/wiki/Pipe_(fluid_conveyance)

    The history of copper pipe is similar. In the 1930s, the pipe was designated by its internal diameter and a 1 ⁄ 16-inch (1.6 mm) wall thickness. Consequently, a 1-inch (25 mm) copper pipe had a 1 + 1 ⁄ 8-inch (28.58 mm) outside diameter. The outside diameter was the important dimension for mating with fittings.

  7. Plumbing - Wikipedia

    en.wikipedia.org/wiki/Plumbing

    PP pipes are heat fused, being unsuitable for the use of glues, solvents, or mechanical fittings. PP pipe is often used in green building projects. [33] PBT – flexible (usually gray or black) plastic pipe which is attached to barbed fittings and secured in place with a copper crimp ring. The primary manufacturer of PBT tubing and fittings was ...

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  9. Pico hydro - Wikipedia

    en.wikipedia.org/wiki/Pico_hydro

    A pico hydro system made by the Sustainable Vision project from Baylor University [1]. Pico hydro is a term used for hydroelectric power generation of under 5 kW. These generators have proven to be useful in small, remote communities that require only a small amount of electricity – for example, to power one or two fluorescent light bulbs and a TV or radio in 50 or so homes. [2]

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