Nano. Pearltrees videos. Help. Pixar Animation Studios. Steve Jobs - Aç Kal Budala Kal (Alt Yazili) - Amis et Famille Kanalı. The Pixar Blog. Witty Comics - Make a Comic. Watch Korean Drama Online. Graphene. Carbon Wonderland. Consider the humble pencil. It may come as a surprise to learn that the now common writing instrument at one time topped the list of must-have, high-tech gadgets. In fact, the simple pencil was once even banned from export as a strategic military asset.
But what is probably more unexpected is the news that every time someone scribes a line with a pencil, the resulting mark includes bits of the hottest new material in physics and nanotechnology: graphene. Graphene comes from graphite, the “lead” in a pencil: a kind of pure carbon formed from flat, stacked layers of atoms. Select an option below: Customer Sign In *You must have purchased this issue or have a qualifying subscription to access this content.
Geography & Environment. Flash Earth - Zoom into satellite and aerial imagery of the Earth in Flash.