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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.
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.
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]
After bans were first introduced prices of these bulbs rose by 20–25%. [65] A German importer simply reclassified the lamps as "mini heaters" [66] branded "Heatballs", but that was banned shortly afterwards. [67] The EU set a target of 2016 to phase out halogen bulbs with two directives EC 244/2009 and EC 1194/2012.
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]
Image credits: the_sneaky_artist #2 The Guy Who Does The Grass For My Building Left A Rectangle Of Wild Flowers So The Bees Can Use Them