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A wall of lava lamps at the offices of Cloudflare Random number generator based on lava lamp motion 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 ...
A lava lamp is a decorative lamp that was 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.
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. [5] Lava lamp sales by Mathmos have been through a number of ups and downs. After selling millions of lamps worldwide in the 1960s and 70s, they did not revive until the 1990s.
Edward Craven Walker (4 July 1918 – 15 August 2000) was a British inventor, [1] who invented the psychedelic Astro lamp, also known as the lava lamp. [ 2 ] [ 3 ] [ 4 ] War record
Yeah, it was basically a pretty silly legal thread, but which had to result in the offending material being redacted until the Foundations lawyers could put a stake into it. Oh, and PS -- it's not a "Lava lamp", it's a Lava-brand motion lamp (TM). That was the basis of their complaint. --Haemo 00:02, 9 July 2007 (UTC) Yes, well.
This page was last edited on 13 February 2009, at 17:35 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
Though not as energy efficient as other alternatives, they are up to 40 percent more efficient than standard incandescent lamps designed for a 2000-hour life. [12] Depending on size, voltage, and designed life, small, low-voltage halogen lamps can have 70% higher efficacy than large, line-voltage lamps.
Common screw-in bubble light. A bubble light is a decorative device consisting of a liquid-filled vial that is heated and illuminated by an incandescent light bulb.Because of the liquid's low boiling point, 39.6°C (103.3°F), the modest heat generated by the lamp causes the liquid to boil and bubble up from the vial's base thus creating a decorative effect.