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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.
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. In 1989, Cressida Granger and David Mulley took over the running of Walker's original company, Crestworth, situated in Poole , Dorset , and changed the name to Mathmos in 1992.
After the war, Craven developed an idea he saw in a country pub in Dorset. [2] The pub had a contraption made by a regular, Donald Dunnett, a one-off device which used two immiscible (cannot be mixed) fluids as an egg timer.
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.
This is a list of sources of light, the visible part of the electromagnetic spectrum.Light sources produce photons from another energy source, such as heat, chemical reactions, or conversion of mass or a different frequency of electromagnetic energy, and include light bulbs and stars like the Sun. Reflectors (such as the moon, cat's eyes, and mirrors) do not actually produce the light that ...
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 floor is lava is a game in which players pretend that the floor or ground is made of lava (or any other lethal substance, such as acid or quicksand), and thus must avoid touching the ground, as touching the ground would "kill" the player who did so. [1] The players stay off the floor by standing on furniture or the room's architecture. [1]