Physics

New ultrasound techniques for peering inside bony structures

Ultrasound—sound with frequencies higher than those audible to humans—is commonly used in diagnostic imaging of the body's soft tissues, including muscles, joints, tendons and internal organs. A technology called high-intensity focused ultrasound (HIFU) is also being explored for therapeutic uses including the removal of uterine fibroids and the destruction of tumors.

Moisture-responsive 'robots' crawl with no external power source

Using an off-the-shelf camera flash, researchers turned an ordinary sheet of graphene oxide into a material that bends when exposed to moisture. They then used this material to make a spider-like crawler and claw robot that move in response to changing humidity without the need for any external power.

Electrocaloric refrigerator offers alternative way to cool everything from food to computers

(Phys.org)—Researchers have built an electrocaloric refrigerator the size of a beverage coaster that can generate a temperature difference of about 2 K between the hot and cold ends of the device. The cooling mechanism, which is based on the electrocaloric effect, involves alternately applying and removing an electric field to a material to increase and decrease the material's temperature, respectively.

A functional prototype nonvolatile ferroelectric domain wall memory

(Phys.org)—A team of researchers from institutions in Australia, the U.S. and China has developed a functional prototype nonvolatile ferroelectric domain wall memory. In their paper published on the open access site Science Advances, the group describes their prototype, its properties and how well it worked.

The crown jewel of the HL-LHC magnets

While the LHC is at the start of a new season of data taking, scientists and engineers around the world are working hard to develop brand new magnets for the LHC upgrade, the High-Luminosity LHC (HL-LHC).

Using body noise to improve cancer detection

Elastography, sometimes referred as seismology of the human body, is an emerging technology used to enhance medical ultrasound imaging. It does this by measuring the elasticity of biological tissue to diagnose cancer or liver and thyroid disease more accurately and at the earliest stages.

NASA Awards Contract for Institutional Support Services

NASA has awarded the Kennedy Space Center Institutional Support Services IV (KISS IV) contract to Apache-Logical Joint Venture of Albuquerque, New Mexico.

Accelerating the quest for quicker, longer-lasting electronics

In the world of electronics, where the quest is always for smaller and faster units with infinite battery life, topological insulators (TI) have tantalizing potential. Scientists report they have created a TI film just 25 atoms thick that adheres to an insulating magnetic film, creating a 'heterostructure.'

Atomic imperfections move quantum communication network closer to reality

An international team of scientists has discovered how to manipulate a weird quantum interface between light and matter in silicon carbide along wavelengths used in telecommunications.

Media Accreditation Open for Launch of NASA’s Newest Communications Satellite

Media accreditation is open for the launch of NASA's Tracking and Data Relay Satellite (TDRS)-M. Liftoff on a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida is targeted for 9:02 a.m. EDT Aug. 3, at the opening of a 40-minute launch window.

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