News tagged with electrical impulse

Light-activated skeletal muscle engineered (w/ Video)

Many robotic designs take nature as their muse: sticking to walls like geckos, swimming through water like tuna, sprinting across terrain like cheetahs. Such designs borrow properties from nature, using engineered materials ...

Aug 30, 2012
5 / 5 (4) 2 | with audio podcast

Uncorrelated activity in the brain

Interconnected networks of neurons process information and give rise to perception by communicating with one another via small electrical impulses known as action potentials. In the past, scientists believed that adjacent ...

Jan 28, 2010
4.8 / 5 (9) 0 | with audio podcast

Lessons from cockroaches could inform robotics (w/ video)

Running cockroaches start to recover from being shoved sideways before their dawdling nervous system kicks in to tell their legs what to do, researchers have found. These new insights on how biological systems stabilize could ...

Feb 22, 2013
5 / 5 (4) 0 | with audio podcast

Shine a light instead of changing the battery

(PhysOrg.com) -- Pacemakers and other implanted medical devices require electric current to operate. Changing the battery requires an additional operation, which is an added stress on the patient. A Japanese team led by Eijiro ...

Dec 01, 2011
5 / 5 (5) 0 | with audio podcast

Explanation for glowing seas suggested

It has long been known that distinctive blue flashes -- a type of bioluminescence -- that are visible at night in some marine environments are caused by tiny, unicellular plankton known as dinoflagellates. ...

Oct 19, 2011
5 / 5 (2) 0 | with audio podcast