News

Imaging Technique Could Detect Acoustically “Invisible” Cracks

It has long been understood that acoustic nonlinearity is sensitive to many physical properties including material microstructure and mechanical damage. The lack of effective imaging has, however, held back the use of this important method. Currently, engineers are able to produce images of the interior of components using ultrasound, but can only detect large problems such as cracks.

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Webb Telescope’s Heart Survives Deep-Freeze Test

After 116 days of being subjected to extremely frigid temperatures like those in space, the heart of the James Webb Space Telescope, the Integrated Science Instrument Module (ISIM) and its sensitive instruments, emerged unscathed from the thermal vacuum chamber at NASA’s Goddard Space Flight Center.

Posted in: News, Measuring Instruments, Monitoring

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Sensor Uses Radio Waves to Detect Subtle Pressure Changes

Stanford engineers have invented a wireless pressure sensor that has already been used to measure brain pressure in lab mice with brain injuries. The underlying technology has such broad potential that it could one day be used to create skin-like materials that can sense pressure, leading to prosthetic devices with the electronic equivalent of a sense of touch. In one simple demonstration they used this wireless pressure sensor to read a team member’s pulse without touching him.

Posted in: News, Metals, Plastics, Antennas, Detectors, Sensors

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New Coating Cools Buildings, Beams Away Heat

Stanford engineers have invented a revolutionary coating material that can help cool buildings, even on sunny days, by radiating heat away from the buildings and sending it directly into space.

Posted in: News, Energy Efficiency, Coatings & Adhesives

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Underwater Robot Offers New Look at Antarctic Sea Ice

The first detailed, high-resolution 3D maps of Antarctic sea ice have been developed using an underwater robot. Scientists from the UK, US, and Australia say the new technology provides accurate ice thickness measurements from areas that were previously too difficult to access.

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Are we moving toward pilotless airliners?

This week's Question: NASA has worked with industry to help create the Synthetic Vision System (SVS), a virtual reality display system for cockpits. The SVS uses 3D to provide pilots with intuitive means of understanding their flying environment, including graphical displays of terrain and hazards. In coming months, Universal Avionics, an avionics manufacturer, will release a product called InSight, which blends larger displays, higher-resolution 3-D synthetic vision, and new icon-based command-and-control architecture. Some say that synthetic vision developments, along with other emerging aviation technologies like touch-screen steering and voice recognition, could lead to a day when airliners fly themselves. What do you think? Are we moving toward pilotless airliners?>

Posted in: Question of the Week

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New Compounds Developed to Manufacture Tunable OLED Devices

Researchers have developed new organic compounds characterized by higher modularity, stability, and efficiency that could be applicable for use in electronics or lighting. A proof-of-concept project has begun to verify that the compounds have the photoluminescence and electrochemical properties required for the manufacture of tunable organic LEDs (OLEDs) that can emit in the blue portion of the visible spectrum, thus applying lower voltages and achieving greater efficiency and longer life.

Posted in: News, Energy Efficiency, OLEDs

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