News tagged with barrier

'Mind the gap' between atomically thin materials

In subway stations around London, the warning to "Mind the Gap" helps commuters keep from stepping into empty space as they leave the train. When it comes to engineering single-layer atomic structures, minding ...

Nov 23, 2014
4.8 / 5 (6) 1

Tracing the evolution of forest trees

There are at least 60,000 identified tree species in the world, "but we know next to nothing about how they got here," Elizabeth Stacy says. "Trees form the backbone of our forests, and are ecologically and ...

Nov 10, 2014
5 / 5 (3) 0