[Phillip] wanted to play with the C preprocessor. He decided to do that by creating a 4 bit full adder. We know this is pretty useless in everyday life, but it was a great learning experience. The ...

This 2-bit adder was a lot of work to build. It uses a total of thirty-six 555 timers and it does have the option of adding or subtracting numbers. It’s a rather unorthodox use of the part, depending ...

We all know that Australia is host to a number of deadly organisms, and it seems to keep producing new ones. This is the Kimberley death adder, Acanthophis cryptamydros, and although it certainly ...