URI QR-encoded


Whats new?

World's fastest ant hits recording breaking speed of 855mm/s According to Noël Coward, mad dogs and Englishmen are the only creatures that go out in the midday sun, but Harald Wolf from the University of Ulm, Germany, would add another animal: Saharan silver ants (Cataglyphis bombycina). Venturing from their nests to scavenge the corpses of less-fortunate creatures at the peak of the day—when the sand can reach 60°C—these resilient ants had always fascinated Wolf. 'Even among desert ants, the silver ants are special', he says, explaining that the insects were reputed to hit speeds approaching 1 m/s. But little was known about how the ants scamper at such blistering speeds across the sand. During an earlier trip to the salt pans of Tunisia—to study the silver ant's cousin, Cataglyphis fortis—Wolf, Sarah Pfeffer, Verena Wahl and Matthias Wittlinger had taken a detour to Douz to search for the enigmatic desert dwellers. After finding silver ants thriving in the dunes, the team returned in 2015 to film them in action. The team publishes their discover that Saharan silver ants are the fastest ants ever recorded, reaching speeds of 0.855m/s (855mm/s) by swinging their legs at speeds of up to 1300mm/s in Journal of Experimental Biology.
https://phys.org/, posted on 17 October 2019 | 12:00 am
A secret in saliva: Food and germs helped humans evolve into unique member of great apes Two million years of eating meat and cooked food may have helped humans shift further from other great apes on the evolutionary tree. The evidence is in our saliva, according to new research from the University at Buffalo.
https://phys.org/, posted on 16 October 2019 | 9:51 pm
New study shows huge dinosaurs evolved different cooling systems to combat heat stroke Different dinosaur groups independently evolved gigantic body sizes, but they all faced the same problems of overheating and damaging their brains. Researchers from Ohio University's Heritage College of Osteopathic Medicine show in a new article in the Anatomical Record that different giant dinosaurs solved the problem in different ways, evolving different cooling systems in different parts of the head.
https://phys.org/, posted on 16 October 2019 | 8:00 pm
First widespread chytrid fungus infections in frogs of Peruvian Amazon rain forests University of Michigan biologists have documented, for the first time, the widespread presence of the notorious chytrid fungus in 80 species of frogs from lowland rain forest sites in the Peruvian Amazon.
https://phys.org/, posted on 16 October 2019 | 8:00 pm
Scientists find early humans moved through Mediterranean earlier than believed An international research team led by scientists from McMaster University has unearthed new evidence in Greece proving that the island of Naxos was inhabited by Neanderthals and earlier humans at least 200,000 years ago, tens of thousands of years earlier than previously believed.
https://phys.org/, posted on 16 October 2019 | 8:00 pm
Study unveils the intricate way two proteins interact to promote cell movement, metastasis When cells in our bodies need to move—to attack an infection or heal a wound, for example—cellular proteins send and receive a cascade of signals that directs the cells to the right place at the right time. It's a process cancer cells can hijack to spread to new tissues and organs.
https://phys.org/, posted on 16 October 2019 | 8:00 pm
Study: Biodiversity improves crop production Ecologists and biologists compared data of about 1,500 agricultural fields around the world, including corn fields in the American plains, oilseed rape fields in southern Sweden, coffee plantations in India, mango plantations in South Africa and cereal crops in the Alps. They analyzed two ecosystem services (i.e., processes regulated by nature that are beneficial and free for humans): the pollination service provided by wild insects and biological pest control service, which is the ability of an environment to use predatory arthropods present in the ecosystem to defend itself from harmful insects.
https://phys.org/, posted on 16 October 2019 | 8:00 pm
Synopsis: Undoing a Quantum Knot

Researchers have observed the decay of a topological knot defect in a quantum gas.

[Physics] Published Wed Oct 16, 2019

http://physics.aps.org/, posted on 16 October 2019 | 12:00 pm
Synopsis: Distorting Helium Atoms with XUV Light

An extreme-UV (XUV) laser alters the structure of doubly excited helium in experiments that pave the way for improved understanding and control of fundamental light-matter interactions.

[Physics] Published Tue Oct 15, 2019

http://physics.aps.org/, posted on 15 October 2019 | 12:00 pm
Synopsis: Quantum-Fluid Droplets Hold Bevy of Charge

Tiny droplets of superfluid helium can contain more than fifty charges, which could act as nucleation sites for growing nanostructures.

[Physics] Published Mon Oct 14, 2019

http://physics.aps.org/, posted on 14 October 2019 | 12:00 pm
NASA engineer's 'helical engine' may violate the laws of physics A NASA engineer has published plans for an engine that could accelerate a rocket without using propellant. But there are questions over whether it could work
https://www.newscientist.com/subject/physics/feed/content/, posted on 11 October 2019 | 2:10 pm
Synopsis: Discovering New Magnetic Materials with Machine Learning

A new computing experiment suggests that machine-learning algorithms can accelerate the discovery and design of new magnetic materials.

[Physics] Published Thu Oct 10, 2019

http://physics.aps.org/, posted on 10 October 2019 | 12:00 pm
Feature: <i>Nobel Prize</i>—Tackling Cosmic Questions

The 2019 Nobel Prize in Physics recognizes research that helped explain the evolution of the Universe and reveal the prevalence of worlds like our own.

[Physics 12, 111] Published Thu Oct 10, 2019

http://physics.aps.org/, posted on 10 October 2019 | 12:00 pm
Born in the big bang: How ancient black holes could save cosmology Exotic primordial black holes born in the moments after the universe began could be the key to solving some of cosmology’s biggest problems… if only we can find them.
https://www.newscientist.com/subject/physics/feed/content/, posted on 9 October 2019 | 7:00 pm
Viewpoint: Directly Measuring an Entangled State

Author(s): David J. Starling

Researchers have directly measured the components of a nonlocal, entangled wave function, rather than relying on indirect tomographic or reconstructive techniques.

[Physics 12, 110] Published Wed Oct 09, 2019

http://physics.aps.org/, posted on 9 October 2019 | 12:00 pm
Synopsis: Turning an Accelerator into a Microscope

A linear accelerator delivers high-energy electrons that can be used to image samples too thick for conventional transmission electron microscopes.

[Physics] Published Tue Oct 08, 2019

http://physics.aps.org/, posted on 8 October 2019 | 12:00 pm
Nobel prize in physics for discovery of exoplanet orbiting a star The Nobel prize in physics has been jointly awarded to  James Peebles, Michel Mayor and Didier Queloz for their contributions to our understanding of the evolution of the universe and Earth’s place in the cosmos.
https://www.newscientist.com/subject/physics/feed/content/, posted on 7 October 2019 | 11:40 am
What the quark?! Why matter's most basic building blocks may not exist Quarks are the subatomic particles thought to make up nearly everything we can see. Now it turns out they could be an illusion created by quantum trickery
https://www.newscientist.com/subject/physics/feed/content/, posted on 2 October 2019 | 7:00 am
A strange new type of crystal is made of fluid tied into knots Weird liquid knots can self-assemble into crystals that are tough to untie, which could make for screens that use less energy to store and display information
https://www.newscientist.com/subject/physics/feed/content/, posted on 26 September 2019 | 8:00 pm
Google has reached quantum supremacy – here's what it should do next Google's quantum computer can outpace supercomputers at a useless calculation, but there are still plenty of hurdles left before the technology hits the big time
https://www.newscientist.com/subject/physics/feed/content/, posted on 26 September 2019 | 6:49 pm
Real-life Iron Man on what it's like to fly a Jet Suit A childhood spent building rockets helped Sam Rogers become the person who flies in a gas-turbine-powered Jet Suit
https://www.newscientist.com/subject/physics/feed/content/, posted on 25 September 2019 | 7:00 pm
Physicists beat Lorentz reciprocity for microwave transmission New device could boost telecommunications and be adapted for photonics
http://physicsworld.com/cws/channel/news, posted on 22 February 2018 | 3:27 pm
Japan’s SuperKEKB set for first particle collisions Revamped accelerator will soon be smashing electrons and positrons together
http://physicsworld.com/cws/channel/news, posted on 21 February 2018 | 3:45 pm
Wood-based 'supermaterial' is stronger and tougher than steel New material is made by compressing treated wood
http://physicsworld.com/cws/channel/news, posted on 21 February 2018 | 3:10 pm
Three photons bind together to make a ‘molecule’ of light Technique could be used to create quantum-information systems
http://physicsworld.com/cws/channel/news, posted on 20 February 2018 | 5:06 pm
Nuclear excitation by electron capture seen at long last Breakthrough could lead to new type of energy source
http://physicsworld.com/cws/channel/news, posted on 20 February 2018 | 2:55 pm
Pistachio trees 'talk' to their neighbours, reveals statistical physics Ising model could account for nut production of pistachio orchards
http://physicsworld.com/cws/channel/news, posted on 19 February 2018 | 4:43 pm
US National Science Foundation clamps down on misconduct Agency will now require every grantee organization to report cases of sexual harassment
http://physicsworld.com/cws/channel/news, posted on 15 February 2018 | 12:57 pm