D-Wave's quantum computer reportedly performed a quantum simulation faster than classical computers, simulating quantum dynamics of spin glasses to describe magnetic materials.

It turns a CD drive into a generator for a 555 based synthesizer. To give the Acordeonador a more analog feeling, a large 4700uf electrolytic capacitor stores just enough energy to make the music ...

When [Miroslav] sent in his ‘guerilla homebrew’ square wave ... The generator is based around a simple astable multivibrator. It doesn’t provide sine waves, but it’s the easiest circuit ...