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  2. List of thermal conductivities - Wikipedia

    en.wikipedia.org/wiki/List_of_thermal_conductivities

    Starting material was 19.0 flint, 37.0 feldspar, 7.0 Edgar plastic kaolin, 22.0 Edgar Nocarb clay, and 15.0 Kentucky old mine No. 4 ball clay, ball milled for 15 hours, slip cast and fired to 1250 °C; 25% open pores; bulk density 2.5 g ⋅ cm −3.

  3. General Electric - Wikipedia

    en.wikipedia.org/wiki/General_Electric

    General Electric in Schenectady, New York, aerial view, 1896 Plan of Schenectady plant, 1896 [18] General Electric Building at 570 Lexington Avenue, New York. During 1889, Thomas Edison (1847–1931) had business interests in many electricity-related companies, including Edison Lamp Company, a lamp manufacturer in East Newark, New Jersey; Edison Machine Works, a manufacturer of dynamos and ...

  4. Timeline of General Electric - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_General_Electric

    GE Oil & Gas acquires Vetco Gray for US$1.9 billion. [19] [20] 2007 GE Plastics is sold to SABIC for US$11.6 billion. [21] 2008 GE Oil & Gas acquires Hydril Pressure & Control for US$1.12 billion from Tenaris, who retains possession of Hydril Premium Connections. [22] [23] 2008 GE Co. acquires Vital Signs Inc. for US$860 million [24] 2009

  5. Compact disc - Wikipedia

    en.wikipedia.org/wiki/Compact_disc

    A CD is made from 1.2-millimetre (0.047 in) thick, polycarbonate plastic, and weighs 14–33 grams. [71] From the center outward, components are: the center spindle hole (15 mm), the first-transition area (clamping ring), the clamping area (stacking ring), the second-transition area (mirror band), the program (data) area, and the rim.

  6. Polyethylene terephthalate - Wikipedia

    en.wikipedia.org/wiki/Polyethylene_terephthalate

    As one of three layers for the creation of glitter; acting as a plastic core coated with aluminum and topped with plastic to create a light reflecting surface, [24] although as of 2021 many glitter manufacturing companies have begun to phase out the use of PET after calls from organizers of festivals to create bio-friendly glitter alternatives.

  7. Low-density polyethylene - Wikipedia

    en.wikipedia.org/wiki/Low-density_polyethylene

    LDPE has SPI resin ID code 4 Schematic of LDPE branching structure. Low-density polyethylene (LDPE) is a thermoplastic made from the monomer ethylene.It was the first grade of polyethylene, produced in 1933 by John C. Swallow and M.W Perrin who were working for Imperial Chemical Industries (ICI) using a high pressure process via free radical polymerization. [1]

  8. Polylactic acid - Wikipedia

    en.wikipedia.org/wiki/Polylactic_acid

    PLA is the most widely used plastic filament material in FDM 3D printing, due to its low melting point, high strength, low thermal expansion, and good layer adhesion, although it possesses poor heat resistance unless annealed.

  9. Polyvinyl alcohol - Wikipedia

    en.wikipedia.org/wiki/Polyvinyl_alcohol

    Polyvinyl alcohol (PVOH, PVA, or PVAl) is a water-soluble synthetic polymer.It has the idealized formula [CH 2 CH(OH)] n.It is used in papermaking, textile warp sizing, as a thickener and emulsion stabilizer in polyvinyl acetate (PVAc) adhesive formulations, in a variety of coatings, and 3D printing.