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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.
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]
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
All lava lamp tests produced violent reactions, with the reactions differing depending on the lamp's design: When lava lamps with safety caps exploded, they vented their contents out through the tops of the lamps because of the safety caps popping off (as designed). The Build Team then tested a bottle-capped lava lamp, which leaked due to a ...
We think it a mistake to move the Lava-lamp page as it is the name these lamps are popularly known as. The history of the trademark “Lava lamp” and who invented this type of lamp is a messy one. We would like to try and set the record straight. What is commonly known as the “Lava lamp” was invented by Edward Craven-Walker in 1963.
Another common experiment to demonstrate thermal convection in liquids involves submerging open containers of hot and cold liquid coloured with dye into a large container of the same liquid without dye at an intermediate temperature (for example, a jar of hot tap water coloured red, a jar of water chilled in a fridge coloured blue, lowered into ...
The temperature of a Pāhoehoe lava flow can be estimated by observing its color. The result agrees well with other measurements of temperatures of lava flows at about 1,000 to 1,200 °C (1,830 to 2,190 °F). When the body is black, the absorption is obvious: the amount of light absorbed is all the light that hits the surface.
According to the relational interpretation of quantum mechanics, first proposed by Carlo Rovelli, [95] observations such as those in the double-slit experiment result specifically from the interaction between the observer (measuring device) and the object being observed (physically interacted with), not any absolute property possessed by the ...