Do you ever wonder how much of what we do you could figure out from scratch? Tying your shoe might seem simple now, but kids have trouble mastering the skill, and dreaming it up for the first time is ...

Georg Ohm was a 28-year–old high school physics teacher in 1825 when he first decided to study the effect of the metal in a circuit on the current produced. This experiment was possible because five ...

What is resistance? The most common definition of resistance is the opposition to current flow—more specifically the flow of electric charge in a material. The circuit element used to model this ...

In a review just published in Nature Materials, researchers take aim at the oldest principle in electronics: Ohm's law. Their article, "Nonlinear transport in non-centrosymmetric systems," brings ...