ScienceDaily: Scientists Create Electron Surf Machine
By precisely controlling billions of individual electrons every second, they hope to develop new computing systems and increase the security of digital communication.
Much like the conveyor belt in a production plant, NPL's electron surf machine delivers electrons one by one in a reliable steady stream at a rate of more than a billion a second. Whilst small streams of electrons can already be produced, until now no one has found a way to deliver them in a controlled fashion at such a high rate.
NPL's method involves creating oscillating waves of electro-static force which flow like the surf rolling into a beach. A single electron is placed on the crest of each wave and the electro-static waves are then focused in a particular direction or at a particular object.