Theoretically predicted adatom diffusion mechanism on the fcc[100] surface of some common metals, including Copper, Aluminum, Silver, Gold, Paladium, Platinum, and Nickel. A single atom makes a knight's move across the surface via the illustrated exchange. The primary atoms are colorized for demonstration purposes. All atoms are of the same element. Credit: J.M. Cohen, Los Alamos Nat. Lab, New Mexico Tech, 4Physics.
Why is it that those old strings of holiday lights stopped working as soon as one light burned out? Couldn't they make them any better?
Learn about the change that made them better.
We ship to most places, including AFO/APO addresses. The map shows some of the places that we have shipped to recently.
Where multiple shippers are available, the customer chooses the delivery service. Approximate shipping costs are shown prior to the completion of payment.
