News tagged with filaments

Cosmologists weigh cosmic filaments and voids

(Phys.org) —Cosmologists have established that much of the stuff of the universe is made of dark matter, a mysterious, invisible substance that can't be directly detected but which exerts a gravitational ...

Apr 17, 2014
4.2 / 5 (35) 20

Actin cytonauts at play in the cell

(Phys.org) —Actin "comets" are scaffolds of polymer that various bacteria and viruses construct within cells. Party-crashers, like Listeria or Shigella bacteria, are able to seed structures using special ...

Jan 21, 2014 report
4.4 / 5 (5) 0 | with audio podcast

Study shows how DNA finds its match

It's been more than 50 years since James Watson and Francis Crick showed that DNA is a double helix of two strands that complement each other. But how does a short piece of DNA find its match, out of the millions ...

Feb 08, 2012
4.8 / 5 (16) 2 | with audio podcast

Fibers that can hear and sing

For centuries, "man-made fibers" meant the raw stuff of clothes and ropes; in the information age, it's come to mean the filaments of glass that carry data in communications networks. But to Yoel Fink, an ...

Jul 12, 2010
4.6 / 5 (11) 0 | with audio podcast

Hydrogen still in the eco-car race

(AP) -- Hydrogen, one of Earth's most abundant elements, once was seen as green energy's answer to the petroleum-driven car: easy to produce, available everywhere and nonpolluting when burned.

Apr 18, 2010
4.3 / 5 (22) 9