How do biosensors work?

Vijay Varadan, Twenty-First Century Endowed Chair in Nano- and Bio-Technologies and Medicine and Chair in Microelectronics and High Density Electronics; director of the High Density Electronics Cente...

What is a carbon footprint?

Nick Brown, executive assistant for sustainability at the University of Arkansas, replies: A carbon footprint is the amount of greenhouse gases, mostly CO2, but also methane, chlorofluorocarbons and ...

What is a teraflop?

Amy Apon, professor of computer science and computer engineering and director of the Arkansas High Performance Computing Center in the College of Engineering, replies: A “flop” is a contraction of “f...

What makes a supercomputer “super”?

Amy Apon, professor of computer science and computer engineering, replies: In the past, supercomputers were built with proprietary, expensive components and ran specialized software. Many of today’s ...

What makes a plant native?

Garry Vernon McDonald, assistant professor of horticulture, Dale Bumpers College of Agricultural, Food and Life Sciences, replies: Pity plants can’t read. It would make the work of plant scient...

What are nanocrystals?

Omar Manasreh, professor of electrical engineering, College of Engineering, and director of the Optoelectronics Laboratory, replies: Nanocrystal is a term given to a cluster of atoms the size of a fr...