Physics

NASA, Partners Solicit Creative Materials Manufacturing Solutions

NASA, the U.S. Agency for International Development (USAID), the U.S. State Department and Nike have issued a challenge to identify 10 game-changing innovations that could enable fabric systems to enhance global economic growth, drives human prosperity and replenishes the planet's resources.

Keeping beverages cool in summer: It's not just the heat, it's the humidity

(Phys.org) —Those drops on the outside of your drink don't just make the can slippery. Experiments show that in hot, humid weather, condensation heats a drink more than the surrounding air.

Einstein's gravity theory passes toughest test yet: Bizarre binary star system pushes study of relativity to new limits

(Phys.org) —A strange stellar pair nearly 7,000 light-years from Earth has provided physicists with a unique cosmic laboratory for studying the nature of gravity. The extremely strong gravity of a massive neutron star in orbit with a companion white dwarf star puts competing theories of gravity to a test more stringent than any available before.

Researchers develop new metrics for X-ray and neutron analysis of flexible macromolecules

(Phys.org) —A dramatic leap forward in the ability of scientists to study the structural states of macromolecules such as proteins and nanoparticles in solution has been achieved by a pair of researchers with the U.S. Department of Energy (DOE)'s Lawrence Berkeley National Laboratory (Berkeley Lab). The researchers have developed a new set of metrics for analyzing data acquired via small angle scattering (SAS) experiments with X-rays (SAXS) or neutrons (SANS). Among other advantages, this will reduce the time required to collect data by up to 20 times.

Optical magnetic microscope for high-resolution, wide-field cell imaging

(Phys.org) —Nano-sized crystals of magnetic material can be found in a wide variety of organisms. Among the most studied are magnetotactic bacteria, which can orient and navigate using biosynthesized magnetosomes. These organelles are made from iron oxide or iron sulphide particles and may eventually have many therapeutic applications. When used in conjunction with new MRI-based methods, they can potentially be used as contrast agents or magnetic labels in imaging, or for drug delivery and local hyperthermic heating in treatment.

Scientists image nanoparticles in action

Scientists have invented a technique for imaging nanoparticle dynamics with atomic resolution as these dynamics occur in a liquid environment. The results will allow, for the first time, the imaging of nanoscale processes, such as the engulfment of nanoparticles into cells.

Einstein's gravity theory passes toughest test yet

A strange stellar pair nearly 7,000 light-years from Earth has provided physicists with a unique cosmic laboratory for studying the nature of gravity. The extremely strong gravity of a massive neutron star in orbit with a companion white dwarf star puts competing theories of gravity to a test more stringent than any available before.

Bold move forward in molecular analyses

New metrics for analyzing data from small angle scattering experiments should dramatically improve the ability of scientists to study the structures of macromolecules such as proteins and nanoparticles in solution.

ITER blanket technology approved

(Phys.org) —The design of the ITER blanket system, a crucial technology on the way to fusion power, has been approved and is now ready to proceed to the manufacturing stage. "The development and validation of the final design of the ITER blanket and first wall technology is a major achievement on our way to deuterium-tritium operation—the main goal of the ITER project," says Rene Raffray, in charge of the blanket for the ITER Organization. "We are looking at a first-of-a-kind fusion blanket which will operate in a first-of-a-kind fusion experimental reactor."

F4E starts connecting the ITER systems together

Those who perceive challenges as opportunities will find themselves drawn to the levels of sophistication and complexity underpinning the ITER project. Connecting the different systems of ITER and ensuring their smooth operation is not an easy task. The glue, otherwise known as the Control Data Access and Communication (CODAC) system, that holds firmly the systems of ITER together, and allows them to 'talk' between them, is a building block for securing the success of the project.

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