News tagged with insulator

How green are green roofs?

Covered with a growing medium and plants, green roofs can benefit a building's insulation, control storm-water drainage and remove pollution from the air, as well as provide wildlife habitats.

Sep 21, 2011
4.2 / 5 (5) 1

Unfazed by imperfections

While insulating against electrical currents in their interior, the surface of materials called topological insulators permits the flow of electron spins relatively unhindered. The almost lossless flow ...

Jul 08, 2011
5 / 5 (2) 1

Getting to Mars means stopping, landing

The Challenger and Columbia space shuttle disasters were perhaps two of the most prominent reminders of how crucial it is that everything work just right for a spacecraft to travel to space and successfully ...

Apr 04, 2011
4.7 / 5 (6) 14 | with audio podcast