Posts Tagged ‘physics’
Why pear shape may explain matter vs. antimatter
U. MICHIGAN (US) — The first direct evidence of pear-shaped nuclei in exotic atoms may help explain why the Big Bang created more matter than antimatter. Continue…
Monday, May 13, 2013 15:50 - 0 Comments
Science & Technology - Apr 15, 2013 12:51 - 0 Comments
Quantum computing: Speed tested in cloud of cold atoms
GEORGIA TECH (US) — Physicists are using clouds of ultra-cold atoms to establish the top speed at which a network of quantum computers could communicate. (more…)
Top Stories - Mar 29, 2013 9:42 - 0 Comments
Even graphene has weak spots
RICE (US) — Even the Superman of materials has its kryptonite—defects in polycrystalline graphene will sap its strength. (more…)
Science & Technology - Mar 28, 2013 13:34 - 0 Comments
Super-thin ‘metascreen’ cloaks 3D objects
U. TEXAS-AUSTIN (US) — A new invisibility cloak is just micrometers thick and can hide 3D objects from microwaves in their natural environment, in all directions, and from all of the observers’ positions. (more…)
Science & Technology - Mar 22, 2013 9:26 - 1 Comment
Convex legs let tiny robots scurry in sand
GEORGIA TECH / UC BERKELEY (US) — Using 3D-printed limbs, scientists have developed a new way to understand how small-legged robots move through granular materials like sand. (more…)
Earth & Environment - Mar 6, 2013 7:12 - 1 Comment
Basic physics may speed up climate modeling
BROWN / U. LEEDS (US) — A new approach that uses basic physics to simulate key elements of climate change may be more effective than methods that “follow every little swirl of water or air,” researchers say. (more…)
Top Stories - Mar 5, 2013 9:20 - 1 Comment
Vortex knot created in lab for first time
U. CHICAGO (US) — Researchers have used hydrofoils and a water tank to create a vortex knot in the lab. (more…)
Science & Technology - Feb 26, 2013 9:55 - 0 Comments
Could fifth force reveal Earth’s core?
U. TEXAS-AUSTIN (US) — Scientists have outlined a new technique that might one day reveal the composition and characteristics of the deep Earth in higher detail than ever before. (more…)
Science & Technology - Jan 23, 2013 12:37 - 0 Comments
Particle size matters when coffee dries up
U. PENNSYLVANIA (US) — The “coffee-ring effect” is why some liquids leave behind a ring-shaped stain when they evaporate. Scientists reveal why the shape of the particles matters. (more…)
Science & Technology - Jan 15, 2013 12:43 - 0 Comments
‘Tube’ physics limits leaf size, tree height
UC DAVIS (US) — Basic scientific principles can explain why leaves on the tallest trees are all about the same size, and why those tall trees aren’t even loftier. (more…)
Science & Technology - Dec 24, 2012 11:57 - 0 Comments
To check the time, force molecules to ‘chill’
COLUMBIA U. (US) — Scientists have created a new type of ultracold strontium molecule, made of pairs of atoms cooled to nearly absolute zero, or close to minus 460 degrees Fahrenheit. (more…)
Science & Technology - Dec 12, 2012 12:41 - 1 Comment
See grains gang up when big impact hits
DUKE (US) — High-speed video of projectiles slamming into a bed of disks provides a new microscopic picture of how a meteorite or missile transfers the energy of its impact to sand and dirt grains. (more…)
Science & Technology - Nov 28, 2012 12:48 - 1 Comment
Graphite surprise throws physics for a loop
U. WARWICK (UK) — Astrophysicists and researchers working with laser-driven nuclear fusion face new challenges after unexpected results from an experiment with strongly heated graphite. (more…)
Science & Technology - Nov 21, 2012 14:27 - 0 Comments
How hydrogen ‘traffic jam’ makes metals brittle
MCGILL (CAN) — Hydrogen embrittlement makes ductile metals brittle and more prone to failure, but a new model can accurately predict the problem. (more…)
Top Stories - Nov 19, 2012 11:33 - 2 Comments
Tractor beam is ‘science fiction made real’
NYU (US) — A tractor beam can pull microscopic particles and has a range of potential uses, from microfluidics to far-out tasks like grabbing dust from comet tails. (more…)
Science & Technology - Nov 6, 2012 10:46 - 1 Comment
New photon control cuts the ‘backscatter’
STANFORD (US) — A new device produces a synthetic magnetism to exert virtual force on photons similar to the effect of magnets on electrons. (more…)
Science & Technology - Oct 31, 2012 12:00 - 0 Comments
X-rays show how semiconductor gets magnetic
UC DAVIS (US) — Seeing inside gallium manganese arsenide for the first time may help scientists develop a new class of faster, smaller devices based on an emerging field called “spintronics.” (more…)
Science & Technology - Oct 25, 2012 12:31 - 0 Comments
Video reveals molecule ‘gridlock’ in glass
EMORY/ NYU (US) — Physicists have made a movie of particle motion as a super-cooled liquid approaches the glass state—a first look at the molecular level of this mysterious process. (more…)
Science & Technology - Oct 24, 2012 16:32 - 0 Comments
‘Power cable’ bacteria electrify the seafloor
USC (US) — Scientists have discovered tiny, filamentous bacteria that link up like living power cables to transmit electrons thousands of cell lengths away. (more…)
