Think small to solve big problems. That, in a nutshell, is the promise of nanotechnology. In this barely visible world, batteries charge 100 times faster and drugs go straight to their targets in the body. Discover some of these nano breakthroughs and how what you can’t see can help you…
…or hurt you? What if tiny machines turn out to be nothing but trouble? We’ll look at the health and safety risks of nanotech.
Plus, scaling up in science fiction: why a Godzilla-sized insect is fun, but just doesn’t fly.
http://radio.seti.org/blog/2012/07/big-picture-science-nano-nano/