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  2. Sodium-vapor lamp - Wikipedia

    en.wikipedia.org/wiki/Sodium-vapor_lamp

    A high-pressure sodium street light in Toronto A high-pressure sodium-vapor lamp An HPS lamp that isn't entirely off. A sodium-vapor lamp is a gas-discharge lamp that uses sodium in an excited state to produce light at a characteristic wavelength near 589 nm. Two varieties of such lamps exist: low pressure, and high pressure.

  3. Edward Miller & Co - Wikipedia

    en.wikipedia.org/wiki/Edward_Miller_&_Co

    Edward Miller & Co. (1844–1924) was formed in Meriden, Connecticut, and is primarily known as a historical manufacturer of lamps. The company also made brass kettles and oil heaters. In 1866, the corporation was formed with capital of US$200,000. Its earlier beginning included being started by Horatio Howard.

  4. Safety lamp - Wikipedia

    en.wikipedia.org/wiki/Safety_lamp

    The Sussmann lamp [58] was introduced into Britain in 1893 and following trials at Murton Colliery in Durham it became a widely used electric lamp with 3000 or so reported by the company in use in 1900 [59] However, by 1910 there were only 2055 electric lamps of all types in use – about 0.25% of all safety lamps. [60]

  5. Alcohol burner - Wikipedia

    en.wikipedia.org/wiki/Alcohol_burner

    An alcohol burner or spirit lamp is a piece of laboratory equipment used to produce an open flame. It can be made from brass , glass , stainless steel or aluminium . [ 1 ]

  6. Davy lamp - Wikipedia

    en.wikipedia.org/wiki/Davy_lamp

    A type of Davy lamp with apertures for gauging flame height. The lamp consists of a wick lamp with the flame enclosed inside a mesh screen. The screen acts as a flame arrestor; air (and any firedamp present) can pass through the mesh freely enough to support combustion, but the holes are too fine to allow a flame to propagate through them and ignite any firedamp outside the mesh.

  7. 50 Inventions From The Past That Were Amazingly Innovative - AOL

    www.aol.com/98-historical-inventions-were-ahead...

    When you think of a vending machine, things like snacks, sodas, or even pharmaceutical supplies may come to mind. But you might be surprised to know that the first ever vending machine actually ...

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