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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.
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 Roku Channel was launched in September 2017 as a free, ad-supported streaming television service ("FAST"), [1] [13] available to viewers in the U.S. [14] Roku's CEO Anthony Wood stated in the same month that the channel was a "way for content owners to publish their content on Roku without writing an app". [15]
The Roku Channel is an American streaming service which launched in September 2017. [1] In 2021, The Roku Channel began releasing original programming branded as "Roku Originals", including acquisitions from the defunct Quibi service.
The Roku OS is the most popular TV operating system in the U.S., reaching an estimated 90 million households as of 2025. [4] [5] [6] The Roku OS works as a streaming platform that hosts both "free" and paid streaming channels through its graphical user interface. [7] [8] It has been reported to be easy to use and powerful.
Evidence suggests that the bulb has hung in at least four locations. It was originally hung in 1901 in a hose cart house on L Street, [12] then moved to a garage in downtown Livermore used by the fire and police departments. [13] The bulb was saved during the fire station's 1937 renovation, during which it was off for approximately one week. [7]
A TCL Roku TV. Roku announced its first branded smart TV and it was released in late 2014. These TVs are manufactured by companies like TCL, LG, Westinghouse and Hisense, and use the Roku user interface as the "brain" of the TV. Roku TVs are updated just like the streaming devices. [77]
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.