Showing posts with label carbon. Show all posts
Showing posts with label carbon. Show all posts

Saturday, July 16, 2011

Graphene = Physics Magic

It seems to get better and better every day. Every other news report that comes out describes it as something that outlasts, outshines, and outruns every other material out there. But first.... what is it? 
Graphene is a 2-dimensional sheet of carbon molecules, packed close together in a hexagon pattern reminiscent of chicken-wire (something a surprising number of nanotech specialists are familiar with). It’s a fairly recent development in physics, not because scientists didn’t know single sheets existed, but because they didn’t know they could be isolated from the bigger 3D graphite. Theoretically, 2D crystals should not exist; the thinner a film of atoms gets, the lower its melting point (remember that temperature is simply the vibration of atoms. The faster the vibration, the more unstable our chicken wire can get). By the time you get to 2D, there should be an indefinite melting point. Hence, no graphene. 
But obviously, science messed up.