If you’re like me, you have hazy memories from high school physics class about the difference between alternating current (AC ...

Electric current comes in many forms: current in a wire, flow of ions between the plates of a battery and between plates during electrolysis, as arcs, sparks, and so on. However, here on Hackaday we ...

Large-scale currents are the conveyor belts of the ocean, transporting water and nutrients and controlling Earth's climate.