Popular Science articles about Physics & Chemistry

Next important step toward quantum computer

Physicists at the Universities of Bonn and Cambridge have succeeded in linking two completely different quantum systems to one another. In doing so, they have taken an important step forward on the way to a quantum computer. To accomplish their...

Comet dust: Planet Mercury's 'invisible paint'

New research suggests that carbon from cometary material that bombards the Mercury may be the reason the planet's surface is so dark. Experiments show that impact material is significantly darkened when impacts occur in the presence of complex organics.A team of scientists has a new explanation for the planet Mercury's dark, barely reflective surface. In a paper published in Nature Geoscience, the researchers suggest that a steady dusting...

Mist-collecting plants may bioinspire technology to help alleviate global water shortages

<i>Lychnis sieboldii</i> was studied to uncover the water collection-and-release secrets of its hairy leaves.Plants living in arid, mountainous and humid regions of the planet often rely on their leaves to obtain the moisture they need for survival by pulling mist out of the...

Thousands of atoms entangled with a single photon

Physicists from MIT and the University of Belgrade have developed a new technique that can successfully entangle 3,000 atoms using only a single photon. The results, published today in the...

UT Dallas engineers twist nanofibers to create structures tougher than bulletproof vests

Researchers at the University of Texas at Dallas have created new structures that exploit the electromechanical properties of specific nanofibers to stretch to up to seven times their length, while...

Quantum experiment verifies Einstein's 'spooky action at a distance'

This is professor Howard Wiseman, Director of Griffith University's Centre for Quantum Dynamics.An experiment devised in Griffith University's Centre for Quantum Dynamics has for the first time demonstrated Albert Einstein's original conception of "spooky action at a distance" using a single particle.

Bar-Ilan U. researchers identify 'tipping point' between quantum and classical worlds

If we are ever to fully harness the power of light for use in optical devices, it is necessary to understand photons -- the fundamental unit of light. Achieving such...

'Goldilocks material' could change spintronics

Attempting to develop a novel type of permanent magnet, a team of researchers at Trinity College in Dublin, Ireland has discovered a new class of magnetic materials based on Mn-Ga...

Searching for traces in the atmosphere

The measurement values show steady increases in all three of the new coolants and foaming agents. Depending on the air currents and wind directions, high concentrations of these even reached the Jungfraujoch in places -- whereas in D&uuml;bendorf very high concentrations could be observed constantly. The diagram also shows that HCFC-1233zd(E) occurs at roughly the same concentrations both in D&uuml;bendorf and on the Jungfraujoch. This indicates that the foaming agent is used in tiny amounts or not at all in Europe -- but its likely source is in North America or AsiaThe latest generation of halogenated coolants is a big step forward: these substances decay more quickly in the atmosphere hence their lifetimes are considerably shorter. That is why they do...

Quantum correlation can imply causation

Contrary to the statistician's slogan, in the quantum world, certain kinds of correlations do imply causation.

Landmark study proves that magnets can control heat and sound

Researchers at The Ohio State University have discovered how to control heat with a magnetic field.

(Left) Collagen fibrils in the dermis of the skin are normally curvy and highly disordered, but (right) in response to a tear align themselves with the tension axis (arrow) to resist further damage.

Goodbye, range anxiety? Electric vehicles may be more useful than previously thought

Berkeley Lab researcher Samveg Saxena is shown.In the first study of its kind, scientists at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) quantitatively show that electric vehicles (EVs) will meet the daily travel...

Solving molybdenum disulfide's 'thin' problem

The promising new material molybdenum disulfide (MoS2) has an inherent issue that's steeped in irony. The material's greatest asset--its monolayer thickness--is also its biggest challenge.

New study shows bacteria can use magnetic particles to create a 'natural battery'

New research shows bacteria can use tiny magnetic particles to effectively create a 'natural battery.' According to work published in journal Science on 27 March, the bacteria can load electrons...

Engineers develop new methods to speed up simulations in computational grand challenge

Stability regions |&sigma;(z)| ? 1 for the low-storage IMEXRK schemes considered in this paper.Engineers at the University of California, San Diego, have developed a new family of methods to significantly increase the speed of time-resolved numerical simulations in computational grand challenge problems. Such...

Tiny bio-robot is a germ suited-up with graphene quantum dots

Graphene quantum dots deposited on a sporating bacteria produces a graphene coated spore. Upon attachment of electrodes across the cell, a bio-electronic device is produced that is highly sensitive to humidity. Here, the spore reacts actively to humidity; and the reaction is translated to an electronic response from the interfaced graphene quantum dots.As nanotechnology makes possible a world of machines too tiny to see, researchers are finding ways to combine living organisms with nonliving machinery to solve a variety of problems.

Squeeze to remove heat: Elastocaloric materials enable more efficient, 'green' cooling

This image shows a static presentation of the temperature distribution over Ni-Ti wires measured with an infrared camera during loading in the case of virgin (upper) and fully stabilized (lower) wire.Move over, vapor compression cooling technology. Emerging "elastocaloric" refrigeration is potentially much more efficient and, unlike vapor compression, relies on environmentally-friendly refrigerants.

Artificial hand able to respond sensitively thanks to muscles made from smart metal wires

Artificial hand able to respond sensitively thanks to muscles made from smart metal wires: Engineers at Saarland University have taken a leaf out of nature's book by equipping an artificial hand with muscles made from shape-memory wire. The new technology enables the fabrication of flexible and lightweight robot hands for industrial applications and novel prosthetic devices. The muscle fibres are composed of bundles of ultrafine nickel-titanium alloy wires that are able to tense and flex. The material itself has sensory properties allowing the artificial hand to perform extremely precise movements. The research group led by Professor Stefan Seelecke will be showcasing their prototype artificial hand and how it makes use of shape-memory 'metal muscles' at HANNOVER MESSE - the world's largest industrial fair - from April 13th to April 17th. The team, who will be exhibiting at the Saarland Research and Innovation Stand in Hall 2, Stand B 46, are looking for development partners. Filomena Simone (Photo), an engineer in the research team led by Stefan Seelecke, is working on the prototype of the artificial hand.Engineers at Saarland University have taken a leaf out of nature's book by equipping an artificial hand with muscles made from shape-memory wire. The new technology enables the fabrication of...

UW scientists build a nanolaser using a single atomic sheet

The ultra-thin semiconductor, which is about 100,000 times thinner than a human hair, stretches across the top of the photonic cavity.University of Washington scientists have built a new nanometer-sized laser -- using the thinnest semiconductor available today -- that is energy efficient, easy to build and compatible with existing electronics.

Catch-release-repeat: Study reveals novel technique for handling molecules

Ximin He is a researcher in the Biodesign Institute's Center for Molecular Design and Biomimetics. She is also an assistant professor of Materials Science and Engineering and Graduate Faculty of Chemical Engineering at the School for Engineering of Matter, Transport and Energy, Ira A. Fulton Schools of Engineering of at Arizona State University.Like vast international trading companies, biological systems pick up freight items (in the form of small molecules), transport them from place to place and release them at their proper destination....

New processing technology converts packing peanuts to battery components

<p>This schematic depicts a process for converting waste packing peanuts into high-performance carbon electrodes for rechargeable lithium-ion batteries that outperform conventional graphite electrodes, representing an environmentally friendly approach to reuse the waste. (Purdue University image/Vinodkumar Etacheri)
<p>A publication-quality image is available at <a target="_blank"href="http://news.uns.purdue.edu/images/2015/pol-peanuts.jpg">http://news.uns.purdue.edu/images/2015/pol-peanuts.jpg</a>Researchers have shown how to convert waste packing peanuts into high-performance carbon electrodes for rechargeable lithium-ion batteries that outperform conventional graphite electrodes, representing an environmentally friendly approach to reuse the...

More news about Physics & Chemistry

Breaking science news from the newsfeed about Physics & Chemistry