Blog

Tech Briefs writers and editors share their opinions and find the fun, interesting, and unexpected stories behind today's leading-edge inventions.

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Blog: Photonics/Optics
Embedded Telescope
Tiny telescopes have long been mounted on glasses to help visually impaired people perform tasks, such as driving. But many potential users have resisted using them due to their appearance, whereby the lens is mounted atop the regular lens or above the frame. Moreover, the magnified view through the telescope is narrow. Now,...
Blog
Software of the Year Award
Computer programs that are used to define safety margins for fiery spacecraft re-entries and help detect planets outside our solar system are co-winners of NASA's 2007 Software of the Year Award. Software engineers at NASA's Ames Research Center developed the Data-Parallel Line Relaxation, or DPLR, which is used to...
Blog: Medical
Mini Magnet MRI
Ohio State University physicists have invented a new kind of MRI technique to see inside a magnet that's smaller than the head of a pin. The magnet is a ferromagnet and has too strong of a magnetic field to be studied with typical MRI. The technique may eventually enable the development of extremely small computers, and give doctors...
Blog: Aerospace
Zero-Gravity Flights
NASA's Innovative Partnerships Program has selected seven Small Business Innovation Research, or SBIR, companies to participate in reduced-gravity test flights in early September. The companies will have the opportunity to test their newly developed hardware on an aircraft that simulates the weightless conditions of...
Blog
Low-Cost LED Lighting
Purdue University researchers have uncovered a potentially less expensive method to produce solid-state lighting based on light-emitting-diode (LED) technology. This development could hasten the day when LEDs, which are more energy efficient and longer lasting than conventional incandescent light bulbs, become the preferred...
Blog
Wearable Kidney
Researchers from UCLA and the Veterans Affairs Greater Los Angeles Healthcare System have developed a design for an automated, wearable artificial kidney, or AWAK. Around 1980, a similar artificial kidney machine was built which was portable, but not wearable. The new technology would allow patients to go about their regular...
Blog
Centennial Challenges
NASA's program of technology prizes consists of seven competitions held throughout the year. The program began in 2005 and is known as Centennial Challenges, in recognition of the centennial of powered flight. The prizes are offered to independent competitors who work without government support, including small businesses,...
Blog: Materials
Antimicrobial Coating
Researchers at Auburn University's Samuel Ginn College of Engineering have produced antimicrobial coatings with potential to prevent diseases from spreading on contaminated surfaces - possibly solving a growing problem not only in hospitals but also in schools, offices, airplanes and elsewhere. The Auburn researchers mixed...
Blog
"Immune Buildings"
Researchers at the University of Saskatchewan have opened an engineering lab to design a ventilation system that could protect schools, hospitals, and other public buildings from chemical warfare and bioterrorist attacks. The lab's research will help determine how the Early Warning and Response system (eWAR) can both filter...
Blog: Energy
Electricity from Compressed Air
Compressed air stored in underground caverns could answer the need for lower cost electrical energy, according to Sandia National Laboratory scientists. The scientists are examining the feasibility of using an aquifer site near Des Moines, IA, to power a plant able to generate up to 13,400 megawatts per hour with 50...
Blog
Analyzing Bone Fracture Risks
Scientists at the ETH Zurich Departments of Mechanical and Process Engineering and Computer Science have teamed with supercomputingexperts at IBM's Zurich Research Laboratory to develop an accurate, powerful and fast method to automate the analysis of bone strength. The method combines density measurements with...
Blog
Swimsuit or Spacesuit?
Swimmers around the world are breaking records this year like never before, including at this week's U.S. Olympic trials. Some attribute it to extensive training as athletes prepare to compete at this summer's games in Beijing, China. Others, however, say one factor may be a new space-age swimsuit made of fabric tested at...
Blog: Medical
Brain Mapping
An international team of researchers has created the first complete high- resolution map of how millions of neural fibers in the human cerebral cortex - the outer layer of the brain responsible for higher level thinking - connect and communicate. Their groundbreaking work identified a single network core, or hub, that may be key to...
Blog
Laser Microscalpel
Scientists at the University of Texas at Austin have developed a laser "microscalpel" that destroys a single cell while leaving nearby cells intact, which could improve the precision of surgeries for cancer, epilepsy and other diseases. The device uses femtosecond lasers, which produce extremely brief, high-energy light pulses...
Blog: Medical
Brain-Machine Interfaces
Brain-machine interfaces could someday be used routinely to help paralyzed patients and amputees control prosthetic limbs with just their thoughts. Now, University of Florida researchers have devised a way for computerized devices not only to translate brain signals into movement, but also to evolve with the brain as it...
Blog
Gesturing Medical Procedures
Researchers at Ben-Gurion University in Israel have developed a hand gesture recognition system, called Gestix, that enables doctors to manipulate digital images during medical procedures by motioning instead of touching a screen, keyboard or mouse, which compromises sterility and could spread infection. Helman Stern, a...
Blog
Laptop Refrigerator
Purdue University researchers are developing a miniature refrigeration system small enough to fit inside laptops and personal computers, a cooling technology that would boost performance while shrinking the size of computers. Unlike conventional cooling systems, which use a fan to circulate air through heat sinks attached to...
Blog: Materials
New Mineral
NASA researchers and scientists from the United States, Germany and Japan have found a new mineral in material they believe came from a comet. The mineral, a manganese silicide named Brownleeite, was discovered within an interplanetary dust particle, or IDP, that appears to have originated from comet 26P/Grigg- Skjellerup. The comet...
Blog: Sensors/Data Acquisition
Low-Power Microchip
A new low-power microchip developed at the University of Michigan uses 30,000 times less power in sleep mode and 10 times less in active mode than comparable chips currently on the market. The Phoenix Processor, as it's called, sets a low-power record and is intended for use in cutting-edge sensor-based devices such as medical...
Blog
Super-Earths
Using the HARPS instrument at the ESO La Silla Observatory, European astronomers have found a system of three super-Earths around the star HD 40307 - a breakthrough in the field of extra-solar planets. The astronomers also counted a total of 45 candidate planets with a mass below 30 Earth masses and an orbital period shorter than 50...
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NASA Briefs
Ames Research Center is developing a wireless-communication and data-processing system that would use radio-frequency identification devices(RFIDs) and software to establish information lifelines between firefighters in a burning building and a fire chief at a control station. The system would identify trails that firefighters could...
Blog
Virus Image
Using electron microscopy and 3D computer reconstruction, UC San Diego scientists have produced the most detailed image yet of the protein envelope of an asymmetrical virus and the viral DNA packed within. By assembling over 12,000 microscopic views of frozen viral particles, the chemists have determined the structure of a bacteriophage...
Blog
Universal Threat Detector
Scientists at Lawrence Livermore National Laboratory (LLNL) continue to make progress in developing a universal detection system that can monitor the air for virtually all of the major threat agents that could be used by terrorists. The system, called Single-Particle Aerosol Mass Spectrometry (SPAMS), had been previously...
Blog
NASA Briefs
Workers at NASA Ames Research Center are developing durable, oxidation-resistant, foam thermal protection systems (TPSs) that would be suitable for covering large exterior spacecraft surfaces. The TPSs would have low to moderate densities, and temperature capabilities comparable to those of carbon-based TPSs, which are reusable at 3,000...
Blog
Current Attractions
Dr. David Morrison is senior scientist at the NASA Astrobiology Institute, and a founder of the multidisciplinary field of astrobiology. He is an expert on the risk of asteroid impacts and potential ways to mitigate that risk. Scientists are currently studying a 300-meter diameter asteroid, called Apophis.
Blog
Microfluidic Device
A team from NASA's Jet Propulsion Laboratory was having trouble making a chip that could withstand the rigors of the European ExoMars rover mission, scheduled for launch in 2013, until they turned to materials called perfluoropolyethers(PFPEs). PFPEs were first pioneered by researchers at University of North Carolina Chapel...
Blog
Microwave Signals from Silicon Chip
Scientists have developed a method to generate high-power signals at frequencies of 200 GHz and higher on an ordinary silicon chip, which could lead to microwave radiation being used as a nondestructive imaging technology to detect diseases, or for security purposes. The method, proposed by Ehsan Afshari, Cornell...
Blog: Energy
Electricity from Auto Exhausts
Researchers at Fraunhofer-Gesellschaft for Physical Measurement Techniques in Germany are working on a thermoelectric generator that converts the heat from car exhaust fumes into electricity. The thermoelectric module feeds the energy into the car's electronic systems, reducing fuel consumption and carbon dioxide from...
Blog
High Tunability Range Crystals
Physicists at the City College of New York (CCNY) have developed near-infrared broadband laser materials with tunability ranges about triple those of earlier crystals. For the first time, tunable laser operation was achieved at both the 1.33-micron and 1.55-micron telecommunication windows, from a single optical...

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