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  2. Lava lamp - Wikipedia

    en.wikipedia.org/wiki/Lava_lamp

    Lava lamps An original Mathmos Astro lava lamp A lava lamp is a decorative lamp , invented in 1963 by British entrepreneur Edward Craven Walker , the founder of the lighting company Mathmos . It consists of a bolus of a special coloured wax mixture inside a glass vessel, the remainder of which contains clear or translucent liquid.

  3. Lavarand - Wikipedia

    en.wikipedia.org/wiki/Lavarand

    Lavarand, also known as the Wall of Entropy, is a hardware random number generator designed by Silicon Graphics that worked by taking pictures of the patterns made by the floating material in lava lamps, extracting random data from the pictures, and using the result to seed a pseudorandom number generator. [1]

  4. Edward Craven Walker - Wikipedia

    en.wikipedia.org/wiki/Edward_Craven_Walker

    Astro lamp has been in continuous production for 60 years and has been handmade in Britain since 1963, [6] and is still made today by Mathmos in Poole. The Mathmos lava lamp formula developed initially by Craven Walker in the 1960s and then improved with his help in the 1990s is still used. Mathmos celebrated its 50th anniversary in 2013. [7] [8]

  5. Phase-out of incandescent light bulbs - Wikipedia

    en.wikipedia.org/wiki/Phase-out_of_incandescent...

    No mercury is used in the manufacturing of LED lamps, a different technology replacement for incandescent lamps. [156] In addition, LED lamps do not require warmup time in cold weather, and in fact, perform better in colder temperatures, making them an excellent choice for use in cold locations, such as refrigeration units. [157]

  6. Neon lighting - Wikipedia

    en.wikipedia.org/wiki/Neon_lighting

    The energy dissipation in the lamps when they are glowing is very low (about 0.1 W), [31] hence the distinguishing term cold-cathode lighting. Some of the applications of neon lamps include: [31] Pilot lamps that indicate the presence of electrical power in an appliance or instrument (e.g. an electric coffee pot or power supply).

  7. Plasma globe - Wikipedia

    en.wikipedia.org/wiki/Plasma_globe

    A plasma ball, plasma globe, or plasma lamp is a clear glass container filled with noble gases, usually a mixture of neon, krypton, and xenon, that has a high-voltage electrode in the center of the container.