Beyond flash -- memories are made of this

(PhysOrg.com) -- The race is on for a successor to the popular 'flash' memory used in portable devices. European researchers think they have found a candidate in novel materials combined with a simple, easily fabricated 'crossbar' ...

Moisture-responsive 'robots' crawl with no external power source

Using an off-the-shelf camera flash, researchers turned an ordinary sheet of graphene oxide into a material that bends when exposed to moisture. They then used this material to make a spider-like crawler and claw robot that ...

Image: Striking lightning from space

Lightning illuminates the area it strikes on Earth but the flash can be seen from space, too. This image was taken from 400 km above Earth in 2012 by an astronaut on the International Space Station travelling at 28 800 km/h.

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