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  2. Crookes radiometer - Wikipedia

    en.wikipedia.org/wiki/Crookes_radiometer

    If light pressure were the cause of the rotation, then the better the vacuum in the bulb, the less air resistance to movement, and the faster the vanes should spin. In 1901, with a better vacuum pump, Pyotr Lebedev showed that in fact, the radiometer only works when there is low-pressure gas in the bulb, and the vanes stay motionless in a hard ...

  3. Incandescent light bulb - Wikipedia

    en.wikipedia.org/wiki/Incandescent_light_bulb

    An incandescent light bulb, incandescent lamp or incandescent light globe is an electric light with a filament that is heated until it glows. The filament is enclosed in a glass bulb that is either evacuated or filled with inert gas to protect the filament from oxidation. Electric current is supplied to the filament by terminals or wires ...

  4. Neon lamp - Wikipedia

    en.wikipedia.org/wiki/Neon_lamp

    A General Electric NE-34 glow lamp, manufactured circa 1930. Neon was discovered in 1898 by William Ramsay and Morris Travers.The characteristic, brilliant red color that is emitted by gaseous neon when excited electrically was noted immediately; Travers later wrote, "the blaze of crimson light from the tube told its own story and was a sight to dwell upon and never forget."

  5. Electron-stimulated luminescence - Wikipedia

    en.wikipedia.org/wiki/Electron-stimulated...

    This is also the method used to produce light in a cathode ray tube (CRT). Experimental light bulbs that were made using this technology do not include magnetic or electrostatic means to deflect the electron beam. [5] A cathodoluminescent light has a transparent glass envelope coated on the inside with a light-emitting phosphor layer.

  6. File:Incandescent light bulb.svg - Wikipedia

    en.wikipedia.org/wiki/File:Incandescent_light...

    Diagram showing the major parts of a modern incandescent light bulb. ==Caption== #Glass bulb #Inert gas #Tungsten filament #Contact wire (goes to foot) #Contact wire (goes to base) #Supper wires #Glass mount/support #Base contact wire #Screw threads #Ins

  7. Induction lamp - Wikipedia

    en.wikipedia.org/wiki/Induction_lamp

    Plasma lamps are a family of light sources that generate light by exciting a plasma inside a closed transparent burner or bulb using radio frequency (RF) power. Typically, such lamps use a noble gas or a mixture of these gases and additional materials such as metal halides , sodium , mercury , or sulfur .

  8. Using Your Easy-Bake Oven Is About to Become Difficult - AOL

    www.aol.com/news/2011-03-14-easy-bake-oven-light...

    Americans Love Our Light Bulbs In part, the downfall of the redesigned toy can be blamed on a safety recall of nearly a million ovens. There were 29 reports of bruised or squished hands and ...

  9. Alessandro Cruto - Wikipedia

    en.wikipedia.org/wiki/Alessandro_Cruto

    Alessandro Cruto was an Italian inventor, born in the town of Piossasco, near Turin, who created an early incandescent light bulb.. Son of a construction foreman, he attended the school of architecture at the University of Turin, while also attending Physics and Chemistry lectures with the dream of crystallizing carbon to obtain diamonds. [1]

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