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  2. Stirling engine - Wikipedia

    en.wikipedia.org/wiki/Stirling_engine

    Philips MP1002CA Stirling generator of 1951. During the early part of the 20th century, the role of the Stirling engine as a "domestic motor" [32] was gradually taken over by electric motors and small internal combustion engines. By the late 1930s, it was largely forgotten, only produced for toys and a few small ventilating fans. [33]

  3. Ultra-high-performance lamp - Wikipedia

    en.wikipedia.org/wiki/Ultra-high-performance_lamp

    Ultra-high-performance lamp. An ultra-high-performance lamp, often known by the Philips trademark UHP, is a high-pressure mercury arc lamp. [1] These were originally known as ultra-high-pressure lamps, [2] [3] because the internal pressure can rise to as much as 200 atmospheres when the lamp reaches its operating temperature.

  4. Philco - Wikipedia

    en.wikipedia.org/wiki/Philco

    Philco was founded in 1892 as Helios Electric Company. [6] From its inception until 1904, the company manufactured carbon-arc lamps.As this line of business slowly floundered over the last decade of the 19th century, the firm experienced increasingly difficult times.

  5. Philips Norelco - Wikipedia

    en.wikipedia.org/wiki/Philips_Norelco

    Philips Norelco is the American brand name for electric shavers and other personal care products made by the Consumer Lifestyle division of Philips. [ 1 ] [ 2 ] For personal care products marketed outside the United States, Palau, Micronesia, and the Marshall Islands, Philips used the Philishave trademark until 2006.

  6. Luminous efficacy - Wikipedia

    en.wikipedia.org/wiki/Luminous_efficacy

    Luminous efficacy can be normalized by the maximum possible luminous efficacy to a dimensionless quantity called luminous efficiency.The distinction between efficacy and efficiency is not always carefully maintained in published sources, so it is not uncommon to see "efficiencies" expressed in lumens per watt, or "efficacies" expressed as a percentage.

  7. List of Sikorsky S-70 variants - Wikipedia

    en.wikipedia.org/wiki/List_of_Sikorsky_S-70_variants

    Specialized Jammer; A UH-60A modified for evaluation pursuant to the Quick Fix II EW Program. It was prepared for an AN/ALQ-151 multi-role tactical EW system, four dipole antennae were mounted in pairs on either side of the tailboom, and a deployable whip antenna was added beneath the aft section of the main cabin.

  8. Sikorsky UH-60 Black Hawk - Wikipedia

    en.wikipedia.org/wiki/Sikorsky_UH-60_Black_Hawk

    UH-60 fly in formation on training mission in Washington State in 2016 CH-53E Super Stallion lifts a disabled UH-60. Black Hawk Down – 2001 war film by Ridley Scott; Future Long-Range Assault Aircraft - UH-60 replacement [274] Related development. Sikorsky S-70 – (United States) Sikorsky HH-60 Pave Hawk – (United States)

  9. Hiwatt - Wikipedia

    en.wikipedia.org/wiki/Hiwatt

    It was at Cornick's urging that the first 200-watt (and later 400-watt) Hiwatt amps were produced. Pete Townshend, who worked with Reeves on the Sound City amps, also became a Hiwatt endorser. Hiwatt hired former band road manager Peter Webber, who demonstrated, promoted, and sold the company's amplifiers as quickly as they were built.