Infographic: ElectricityA visual cheat sheet about electrical physics, containing the most important formulas of current and Ohm’s law expressed through an impossible water circuit analogy.(by Pierluigi Scotolati)
The Direction Connection Finding your way in the wilderness without a map and compass is one of the most valuable skills you can possess. Here are a few tips, tricks and our favorite tool for gauging your sense of direction when you're outdoors.
This diagram shows how sodium and potassium ions are pumped through protein channels. The sodium ions are pumped out of the cell, while potassium is pumped into the cell. The movement of these ions creates resting potential and action potential.