News tagged with hollow spheres

Nanoshell whispering galleries improve thin solar panels

Visitors to Statuary Hall in the U.S. Capitol Building may have experienced a curious acoustic feature that allows a person to whisper softly at one side of the cavernous, half-domed room and for another on ...

Nanotechnology / Nanomaterials

created Feb 07, 2012 | popularity 4.4 / 5 (7) | comments 6 | with audio podcast

Hollow spheres made of metal

Producing metallic hollow spheres is complicated: It has not yet been possible to make the small sizes required for new high-tech applications. Now for the first time researchers have manufactured ground hollow ...

Chemistry / Materials Science

created Oct 13, 2009 | popularity 4.9 / 5 (9) | comments 5

Life Sticks: Bioengineer Publishes Sticky Insights in journal Science

(PhysOrg.com) -- Sticky is good. A University of California, San Diego bioengineer is the first author on an article in the journal Science that provides insights on the “stickiness of life.” The big idea i ...

Biology / Biotechnology

created Apr 10, 2009 | popularity 4 / 5 (6) | comments 2




Search results for hollow spheres


A bronze matryoshka doll: The metal in the metal in the metal

A doll in a doll, and then one more, enveloping them from the outside – this is how Thomas Faessler explains his molecule. He packs one atom in a cage within an atom framework. With their large surfaces ...

Nanotechnology / Nanomaterials

created Feb 07, 2012 | popularity 5 / 5 (7) | comments 1 | with audio podcast

NASA's GCPEX mission: What we don't know about snow

Predicting the future is always a tricky business -- just watch a TV weather report. Weather forecasts have come a long way, but almost every season there's a snowstorm that seems to come out of nowhere, or ...

Space & Earth / Earth Sciences

created Feb 01, 2012 | popularity 3 / 5 (1) | comments 0

Debris from way out there

"Well, here it is," said aerospace engineer William Ailor as he paused next to the hulking metal shells arrayed along the plaza outside a visitor entrance at Aerospace Corp.'s El Segundo, Calif., headquarters.

Space & Earth / Space Exploration

created Jan 25, 2012 | popularity 5 / 5 (4) | comments 1

'Space ball' drops on Namibia

A large metallic ball fell out of the sky on a remote grassland in Namibia, prompting baffled authorities to contact NASA and the European space agency.

Space & Earth / Space Exploration

created Dec 22, 2011 | popularity 4.2 / 5 (31) | comments 54

On the edge of friction

(PhysOrg.com) -- The problem exists on both a large and a small scale, and it even bothered the ancient Egyptians. However, although physicists have long had a good understanding of friction in things like ...

Physics / Condensed Matter

created Dec 20, 2011 | popularity 4.7 / 5 (6) | comments 3 | with audio podcast

SANS tracks cell death protein invading biomimetic mitochondrial membrane

(PhysOrg.com) -- An international team of biochemists, biophysicists, and neutron scientists are using a combination of fluorescence and small-angle neutron scattering (SANS) techniques to assist biochemists ...

Chemistry / Biochemistry

created Dec 15, 2011 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Glass that cleans itself

Eyeglasses need never again to be cleaned, and dirty windscreens are a thing of the past! Researchers at the Max Planck Institute for Polymer Research in Mainz and the Technical University Darmstadt are now ...

Nanotechnology / Nanomaterials

created Dec 07, 2011 | popularity 4.7 / 5 (10) | comments 4

Bubbles help break energy storage record for lithium-air batteries

Resembling broken eggshells, graphene structures built around bubbles produced a lithium-air battery with the highest energy capacity to date, according to scientists at Pacific Northwest National Laboratory ...

Nanotechnology / Nanomaterials

created Nov 29, 2011 | popularity 4.3 / 5 (9) | comments 1 | with audio podcast

Why carbon nanotubes spell trouble for cells

It's been long known that asbestos spells trouble for human cells. Scientists have seen cells stabbed with spiky, long asbestos fibers, and the image is gory: Part of the fiber is protruding from the cell, ...

Nanotechnology / Bio & Medicine

created Sep 18, 2011 | popularity 4.9 / 5 (11) | comments 3 | with audio podcast

Vessel to contain cosmic force takes shape

At the heart of most celestial objects is a dynamo. The Earth's dynamo, spun to life in the molten metal core of our planet, generates a magnetic field that helps us find north and, perhaps more critically, ...

Physics / Plasma Physics

created Jul 21, 2011 | popularity 4.4 / 5 (7) | comments 4


List of search results for hollow spheres