In 1953, Gottfried Moellenstedt invented the electron biprism, more or less by accident, with the serendipity characteristic to him: Aiming at dark-field imaging in an electron microscope, he stretched a thin tungsten...

The Atomic Orbitals website is a distribution point for the orbital image generating program "Orbital Viewer" as well as the home of a collection of images generated with the program. Atomic and molecular orbitals are...

Animation of carrier flow in a metal. This movie loops indefinitely showing electrons moving about on both sides of the substrate Positive and negative poles are shown with electrons moving in opposite directions.

This online video is an animation of carrier flow in a semiconductor. Electrons move about on both sides of the substrate, and positive and negative poles are shown. The semiconductor is sandwiched in-between opposing...

This is the website of the "Cornell Electron Storage Ring" (CESR), a high-luminosity 6+6 GeV electron-positron collider at the Wilson Synchrotron Laboratory, Cornell University. Highlights of the site include a...