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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.
A wax coating makes this Manila hemp waterproof. A lava lamp is a novelty item that contains wax melted from below by a bulb. The wax rises and falls in decorative, molten blobs. Sealing wax was used to close important documents in the Middle Ages. Wax tablets were used as writing surfaces.
Thermoluminescence testing involves heating a sample until it releases a type of light, which is then measured to determine the last time the item was heated. In thermoluminescence dating, these long-term traps are used to determine the age of materials: When irradiated crystalline material is again heated or exposed to strong light, the ...
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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, and using the result to seed a pseudorandom number generator. [1]
Lava is a heavy-duty hand cleaner in soap bar form manufactured by the WD-40 Company. Unlike typical soap bars, Lava contains ground pumice , which gave the soap its name. The soap and pumice combination is intended to scour tar , engine grease, paint, dirt, grime, filth, and similar substances from the skin.
The wax model of a head, at the Wicar Museum at Lille, belongs probably to the school of Canova. [15] Wax flower and fruit sculptures were popular in the 1840s and 1850s in Britain, with noted sculptors including the London-based Emma Peachey and the Mintorn family. There was a section for this work at the Great Exhibition of 1851. [16]
The wax encaustic painting technique was described by the Roman scholar Pliny the Elder in his Natural History from the 1st Century AD. [5] The oldest surviving encaustic panel paintings are the Romano-Egyptian Fayum mummy portraits from Egypt , around 100–300 AD, [ 6 ] but it was a very common technique in ancient Greek and Roman painting.