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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 alledgedly using the result to seed a pseudorandom number generator.
Lava lamps An original Mathmos Astro lava lamp. 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 Astro lamp, or lava lamp, was invented around 1963 by Edward Craven Walker.It was adapted from a design for an egg timer spotted in a pub in Dorset, England. Edward and Christine Craven-Walker licensed the product to a number of overseas markets whilst continuing to manufacture for the European market themselves under the original name of the company, Crestworth. [3]
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.
Centennial Bulb in fire station 6. Several reasons have been cited for the bulb's extensive lifespan. Its continuous operation has largely eliminated the stresses associated with turning a light bulb on and off, the act of which causes the temperature of the bulb to increase and decrease.
The build light indicator originated from CruiseControl, [citation needed] a continuous integration tool created by employees of ThoughtWorks.Though it primarily functioned as a web page dashboard that could report more detailed information about a build, the software could also control external devices for simpler reporting.
The pressure in the quartz arc-tube rises to approximately one atmosphere once the bulb has reached its working temperature. If the discharge should be interrupted (e.g. by interruption of the electric supply), it is not possible for the lamp to restrike until the bulb cools enough for the pressure to fall considerably.