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Editors' Picks:



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Physics/Chemistry News
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Today's physics/chemistry headlines from the sources selected by our team:

How to test the twin paradox without using a spaceship
Forget about anti-ageing creams and hair treatments. If you want to stay young, get a fast spaceship. That is what Einstein's Theory of Relativity predicted a century ago, and it is commonly known as "twin paradox".
Phys.org: General Physics News, Wed, 16 Apr 2014 13:04:01 GMT

Sensitive detection method may help impede illicit nuclear trafficking
According to the International Atomic Energy Agency (IAEA) the greatest danger to nuclear security comes from terrorists acquiring sufficient quantities of plutonium or highly enriched uranium (HEU) to construct a crude nuclear explosive device. The IAEA also notes that most cases of illicit nuclear trafficking have involved gram-level quantities, which can be challenging to detect with most inspection methods.
Phys.org: General Physics News, Wed, 16 Apr 2014 13:04:01 GMT

Beam on target: CEBAF accelerator achieves 12 GeV commissioning milestone
Late on April 1, the crown jewel of the Department of Energy's Thomas Jefferson National Accelerator Facility ("Jefferson Lab") sparkled its way into a new era. Following an upgrade of the Continuous Electron Beam Accelerator Facility, the CEBAF accelerator delivered the highest-energy electron beams it has ever produced into a target in an experimental hall, recording the first data of the 12 GeV era. The machine sent electrons around the racetrack three times (known as "3-pass" beam), resulting in 6.11 GeV electrons at 2 nanoAmps average current for more than an hour.
Phys.org: General Physics News, Wed, 16 Apr 2014 13:04:01 GMT

Device turns flat surface into spherical antenna
By depositing an array of tiny, metallic, U-shaped structures onto a dielectric material, a team of researchers in China has created a new artificial surface that can bend and focus electromagnetic waves the same way an antenna does.
Phys.org: General Physics News, Wed, 16 Apr 2014 13:04:01 GMT

New sensor improves the level of efficiency in detecting ozone
Researchers have developed a more effective ozone sensor than the ones used so far. The new sensor detects this gas faster and in lower amounts. Ozone is present in the atmosphere and it plays a significant role in the protection of living beings because it absorbs the ultraviolet radiation from the sun. However, the exposure to certain concentrations of this gas may cause health problems, such as headache, burning and irritation of the eyes and respiratory system problems; that is why it is relevant to detect its presence effectively.
Physics News -- ScienceDaily, Wed, 16 Apr 2014 13:04:01 GMT

Beam on target! Cebaf accelerator delivered high-energy electron beams
Late on April 1, the crown jewel of the Department of Energy's Thomas Jefferson National Accelerator Facility sparkled its way into a new era. Following an upgrade of the Continuous Electron Beam Accelerator Facility, the CEBAF accelerator delivered the highest-energy electron beams it has ever produced into a target in an experimental hall, recording the first data of the 12 GeV era.
Physics News -- ScienceDaily, Wed, 16 Apr 2014 13:04:01 GMT

House windows that double as solar panels? Shiny quantum dots brighten future of solar cells
A house window that doubles as a solar panel could be on the horizon, thanks to recent quantum-dot work. Scientists have demonstrated that superior light-emitting properties of quantum dots can be applied in solar energy by helping more efficiently harvest sunlight.
Physics News -- ScienceDaily, Wed, 16 Apr 2014 13:04:01 GMT

Could pulsars explain the positron excess?
AMS-02 dataset accounted for without dark-matter contribution
physicsworld.com: news, Wed, 16 Apr 2014 13:04:01 GMT

Plasmonic waveguide stops light in its tracks
Design could help build 'stopped-light laser'
physicsworld.com: news, Wed, 16 Apr 2014 13:04:01 GMT

Single-atom gates open the door to quantum computing
Independent teams unveil a basic building block of a quantum computer
physicsworld.com: news, Wed, 16 Apr 2014 13:04:01 GMT

Potent, puzzling and (now less) toxic: Team discovers how antifungal drug works
Scientists have solved a decades-old medical mystery and in the process have found a potentially less toxic way to fight invasive fungal infections, which kill about 1.5 million people a year. ...
Physics News, Wed, 16 Apr 2014 13:04:02 GMT

Chemists design nanoparticles that can deliver three cancer drugs at a time
Delivering chemotherapy drugs in nanoparticle form could help reduce side effects by targeting the drugs directly to the tumors. In recent years, scientists have developed nanoparticles that ...
Physics News, Wed, 16 Apr 2014 13:04:02 GMT

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PhysOrg.com
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white line spacer Physical Review Focus
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white line spacer Sciencebase -- Latest Science News
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