Physics

Solid-state controllable light filter may protect preterm infants from disturbing light

Preterm infants appear to mature better if they are shielded from most wavelengths of visible light, from violet to orange. But it has been a challenge to develop a controllable light filter for preterm incubators that can switch between blocking out all light—for sleeping—and all but red light to allows medical staff and parents to check up on the kids when they're awake.

Invisible pattern can put a stop to counterfeit designer clothing

There is now a way to differentiate between designer clothing and knockoffs. Chalmers researcher Christian Müller has produced a thread with unique optical properties, which can be used to create invisible patterns in fabrics that are only visible under polarized light.

Scientists use nano-rods to investigate how matter assembles

(Phys.org) —In the microscopic world, everything is in motion: atoms and molecules vibrate, proteins fold, even glass is a slow flowing liquid. And during each movement there are interactions between the smallest elements – for example, the atoms – and their neighbours. To make these movements visible, scientists at the Paul Scherrer Institute PSI have developed a special model system. It is so big that it can be easily observed under an X-ray microscope, and mimics the tiniest movements in Nature.

Did the universe evolve to make black holes?

(Phys.org) —The maths underpinning Darwin's theory of natural selection could explain how the universe may be 'designed' to make black holes.

Engineers manipulate a buckyball by inserting a single water molecule

Engineering researchers have developed a technique to isolate a single water molecule inside a buckyball and drive motion of the "big" nonpolar ball through the encapsulated "small" polar H2O molecule, a controlling transport mechanism in a nanochannel under an external electric field. This method could lead to new applications including effective ways to control drug delivery and to assemble C60-based functional 3D structures at the nanoscale level.

Microwave oven cooks up solar cell material

Metallurgists used an old microwave oven to produce a nanocrystal semiconductor rapidly using cheap, abundant and less toxic metals than other semiconductors. They hope it will be used for more efficient photovoltaic solar cells and LED lights, biological sensors and systems to convert waste heat to electricity.

NASA Invites Media to Annual Lunabotics Mining Competition

Fifty teams of undergraduate and graduate students from around the world will demonstrate their lunar excavator robots May 20 - 24 at NASA's Kennedy Space Center in Florida.

Michoud Facility, Marshall Center to Host 'NASA Day in Baton Rouge'

On May 8, NASA will host its first "NASA Day in Baton Rouge" event at the State Capitol in Baton Rouge.

NASA Invites Media to Annual Lunabotics Mining Competition

Fifty teams of undergraduate and graduate students from around the world will demonstrate their lunar excavator robots May 20 - 24 at NASA's Kennedy Space Center in Florida.

NASA to Mark 40th Anniversary of Skylab and Life Off Earth

NASA will commemorate the 40th anniversary of America's first space station Monday, May 13, with a televised roundtable discussion featuring Skylab astronauts, a current astronaut and agency managers planning future space missions.

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