Teaching students about logic gates is often done in two parts, once on the whiteboard for the theory, and again on the breadboard for the practice. [shurik179] wasn’t a fan of the abstractio… ...

DNA-based logic gates that could carry out calculations inside the body have been constructed for the first time. The work brings the prospect of injectable biocomputers programmed to target ...

The pair used these gates to build a circuit that calculates the square roots of 0, 1, 4 and 9. It is made from 130 DNA strands, the largest ever built in a single test tube.