Researchers have developed the world's first complementary electrochemical logic circuits that can function stably for long periods in water. This is a highly significant breakthrough in the ...

Author’s note: This article shows how to derive circuit gain equations via a signal flow graph. With practice you may be able to write a gain equation by locating signal paths and loops in the ...

Researchers at Northwestern University have devised a new method of creating large volumes of high-quality graphene, and then printing flexible graphene patterns with an inkjet printer that are 250 ...