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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. 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.

  4. Earth battery - Wikipedia

    en.wikipedia.org/wiki/Earth_battery

    The free electrons then flow into one electrode to a greater degree than in the other electrode, thereby causing electric current to flow in the external circuit through the load. The current flows from that plate whose position in the electropotential series is near the negative end (such as palladium ).

  5. 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 ...

  6. 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]

  7. Piping - Wikipedia

    en.wikipedia.org/wiki/Piping

    Process piping and power piping are typically checked by pipe stress engineers to verify that the routing, nozzle loads, hangers, and supports are properly placed and selected such that allowable pipe stress is not exceeded under different loads such as sustained loads, operating loads, pressure testing loads, etc., as stipulated by the ASME B31, EN 13480, GOST 32388, RD 10-249 or any other ...

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  9. 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.

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