Popular Science articles about Physics & Chemistry

One of the very first collisions recorded between two lead ions at the LHC's top energy. The energy in the center-of-mass system is approximately 1000 TeV. Todays events bring collisions physics into a new energy scale, that of PeV (Peta-electron-volts). The ALICE detector registered tens of thousands of particles. In this live display the tracks of the particles from the collision point and through the detector are shown in colors corresponding to their mass and type.

Algae could be a new green power source

As world leaders prepare to gather in France for the 2015 United Nations Conference on Climate Change next week, global warming -- and how to stop it -- is a...

Electric fields remove nanoparticles from blood with ease

An artist's representation of the nanoparticle removal chip developed by researchers in Professor Michael Heller's lab at the UC San Diego Jacobs School of Engineering. An oscillating electric field (purple arcs) separates drug-delivery nanoparticles (yellow spheres) from blood (red spheres) and pulls them towards rings surrounding the chip's electrodes. The image is featured as the inside cover of the Oct. 14 issue of the journal <i>Small</i>.Engineers at the University of California, San Diego developed a new technology that uses an oscillating electric field to easily and quickly isolate drug-delivery nanoparticles from blood. The technology could...

Breakthrough allows tracking of single molecules in 3-D with nanoscale accuracy

An innovative approach to calibrating high-tech microscopes enables researchers to track the movement of single molecules in 3D at the nanoscale.

ORNL microscopy captures real-time view of evolving fuel cell catalysts

Models of platinum-cobalt nanoparticle catalysts illustrate how specific atomic configurations originate and evolve as the particles are heated.Atomic-level imaging of catalysts by scientists at the Department of Energy's Oak Ridge National Laboratory could help manufacturers lower the cost and improve the performance of emission-free fuel cell technologies.

Powering the next billion devices with Wi-Fi

The UW team used ambient signals from this Wi-Fi router to power sensors in a low-resolution camera and other devices.University of Washington engineers have developed a novel technology that uses a Wi-Fi router -- a source of ubiquitous but untapped energy in indoor environments -- to power devices.

Queen's University Belfast, Northern Ireland, invents first 'porous liquid'

This is professor Stuart James of Queen's University Belfast, Northern Ireland, UK.Scientists at Queen's University Belfast have made a major breakthrough by making a porous liquid - with the potential for a massive range of new technologies including 'carbon capture'.

Daring move for first US-China fusion team

Groundbreaking US-China experiments continued in September between DIII-D, led by GA's Dr. Andrea Garofalo (at center), and China's ASIPP at the EAST fusion program, whose scientists connect via videoconferencing (pictured at left screen). At right is Huiqian Wang, an ASIPP post-doctoral scientist being trained at DIII-D.The way to increase the power and efficiency of magnetic fusion energy may be to risk running the plasma - hotter than 100-million-degrees C - closer than ever to the...

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Hydrogel superglue is 90 percent water

Nature has developed innovative ways to solve a sticky challenge: Mussels and barnacles stubbornly glue themselves to cliff faces, ship hulls, and even the skin of whales. Likewise, tendons and...

Engineers design magnetic cell sensors

MIT engineers have designed magnetic protein nanoparticles that can be used to track cells or to monitor interactions within cells. The particles, described today in Nature Communications, are an enhanced...

UW-Madison engineers reveal record-setting flexible phototransistor

Developed by UW-Madison electrical engineers, this unique phototransistor is flexible, yet faster and more responsive than any similar phototransistor in the world.Inspired by mammals' eyes, University of Wisconsin-Madison electrical engineers have created the fastest, most responsive flexible silicon phototransistor ever made.

Army ants build bridges to shorten journeys through the rainforest

Army ants construct complex bridges from their own bodies to span gaps and create shortcuts in the floor of the tropical forests of Central America, according to a new study published in the Proceedings of the National Academy of Sciences.

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Exploring the physics of a chocolate fountain

This is Adam Townsend with the chocolate fountain.A mathematics student has worked out the secrets of how chocolate behaves in a chocolate fountain, answering the age-old question of why the falling 'curtain' of chocolate surprisingly pulls inwards...

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Strange quantum phenomenon achieved at room temperature in semiconductor wafers

Paul Klimov, a graduate student in the University of Chicago's Institute for Molecular Engineering, adjusts the intensity of a laser beam during an experiment. Because the laser light lies within the infrared spectrum, it is invisible to the human eye.Entanglement is one of the strangest phenomena predicted by quantum mechanics, the theory that underlies most of modern physics. It says that two particles can be so inextricably connected that...

Electronic plants developed at Linköping University

Augmenting plants with electronic functionality would make it possible to combine electric signals with the plant's own chemical processes.Researchers at Linköping University in Sweden have created analog and digital electronics circuits inside living plants. The group at the Laboratory of Organic Electronics (LOE), under the leadership of Professor...

Quantum spin could create unstoppable, one-dimensional electron waves

In certain nanomaterials, electrons are able to race through custom-built roadways just one atom wide. To achieve excellent efficiency, these one-dimensional paths must be paved with absolute perfection--a single errant...

Quantum dots made from fool's gold boost battery performance

Vanderbilt graduate student Anna Douglas holding one of the batteries that she has modified by adding millions of quantum dots made from iron pyrite, fool's gold.If you add quantum dots - nanocrystals 10,000 times smaller than the width of a human hair - to a smartphone battery it will charge in 30 seconds, but the...

Superconductor survives ultra-high magnetic field

Physicists from the universities of Groningen and Nijmegen (the Netherlands) and Hong Kong have discovered that transistors made of ultrathin layers molybdeendisulfide (MoS2) are not only superconducting at low temperatures...

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PPPL physicists find clue to formation of magnetic fields around stars and galaxies

This is an image of coronal loops on the sun that are linked to magnetic fields.An enduring astronomical mystery is how stars and galaxies acquire their magnetic fields. Physicists Jonathan Squire and Amitava Bhattacharjee at the U.S. Department of Energy's (DOE) Princeton Plasma Physics Laboratory...

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Diamonds may not be so rare as once thought

Diamonds may not be as rare as once believed, but this finding in a new Johns Hopkins University research report won't mean deep discounts at local jewelry stores.

Uncovering the secrets of ice that burns

From left, Bj&oslash;rn Skallerud and Zhiliang Zhang, both professors in NTNU's Department of Structural Engineering; Signe Kjelstrup, professor in NTNU's Department of Chemistry and Jianying He, an associate professor in NTNU's Department of Structural Engineering were involved in a cross-disciplinary effort to study the mechanical properties of methane hydrates. They were joined by colleagues from Xiamen University and the China University of Geosciences and Delft University of Technology in the Netherlands in a publication in <em>Nature Communications</em>.Methane hydrates are a kind of ice that contains methane, and that form at certain depths under the sea or buried in permafrost. They can also form in pipelines...

Simple mathematical formula models lithium-ion battery aging

Hybrid electric vehicles, cell phones, digital cameras, and the Mars Curiosity rover are just a few of the many devices that use rechargeable lithium-ion batteries. Now a team of Penn...

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