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Sunday, May 15, 2022

A Chemical Computer

New design of computers, but how fast? 


Chemical Computer Can Be Programmed to Solve Hard Problems

By New Scientist, May 11, 2022

Researchers at the U.K.'s University of Glasgow have programmed a chemical computer to solve specific problems, following earlier research on encoding data into the system.

The computer consists of a plastic grid of interconnected chambers filled with a liquid acid-salt solution, which triggers a chemical reaction when mechanically agitated. The researchers adjust the speed of each stirrer to control the reaction rate in each cell, to program a specific problem.

The cells alternately flash red or blue lights during the reaction, with each flash equivalent to the 1s and 0s used in electronic computers; a video camera records the reds and blues, and uses that data to adjust the stirrers.

From New Scientist

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