Light on silicon better than copper?

DURHAM, N.C. — Step aside copper and make way for a better carrier of information — light.
As good as the metal has been in zipping information from one circuit to another on silicon inside computers and other electronic devices, optical sig…

Learning how consumers value products

Suggesting to consumers that they will use a product frequently can actually reduce their interest in purchasing the product, according to a new study in the Journal of Consumer Research.
“When consumers estimate the value of a durable product, th…

Engineers Converting Atomic Force Microscopes into Molecular Milling Machines

Engineering researchers are at the vanguard of efforts to remake the “atomic force microscope” (AFM), an instrument typically used to obtain molecular scale images, into a tool to build precisely aligned structures at those tiny dimensions. “I think this will be a very good tool for research in the laboratory because we should have very good control and get results relatively easily,” said Stefan Zauscher, an assistant professor of mechanical engineering and materials science who brought his expertise in designing and using atomic force microscopes to Duke.