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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 ...
Video of an orange lava lamp in operation. Since 1970, lava lamps made for the US market have not used carbon tetrachloride, the use of which was banned in the country that year due to toxicity. [4] Haggerty, their current manufacturer, has stated that their current formulation is a trade secret. [5]
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
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A couple in Oregon said they discovered a secret “lava tube” running underneath their home. Suzanne and James Brierley bought their house back in 2017 and had no idea about the existence of an ...
A deuterium arc lamp (or simply deuterium lamp) is a low-pressure gas-discharge light source often used in spectroscopy when a continuous spectrum in the ultraviolet region is needed. Plasma "arc" or discharge lamps using hydrogen are notable for their high output in the ultraviolet, with comparatively little output in the visible and infrared.
Mueseler lamp (on the left) and a derivative of the Geordie. The lamp is a modified Clanny designed by the Belgian Mathieu-Louis Mueseler. The flame is surrounded by a glass tube surmounted by a wire gauze-capped cylinder. Air enters from the side above the glass and flows down to the flame before rising to exit at the top of the lamp.