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Acoustic Waves Could Help Put Out Flames in Zero-Gravity Environments
Aboard NASA's "Weightless Wonder" airplane, physicists are experimenting with combustion and fluid flows in zero-g and developing a fire extinguishing system based on sound waves. The technique could ... > more -
Construction
Engineering and Construction
Civil Engineering
Engineering
Materials Science
Nature of Water
Structural Engineers Develop Disaster-Resistant Technology
A new bridge design replaces reinforced concrete columns and bars with steel tubes filled with concrete. The steel and concrete bind, creating strong yet supple columns For the bridge pier's footing, ... > more -
Portable Machines Go Beyond Prenatal Uses
Ultrasound uses sound waves that bounce off body parts, producing echoes. A computer translates the echoes into images that rival the quality of CAT scans and MRIs, showing broken bones, muscle ... > more -
Automotive Engineers Team Up to Improve Energy-Saving Technology
Mechanical and electrical engineers at DaimlerChrysler, General Motors and BMW have jointly developed a hybrid-vehicle technology that shuts the internal combustion engine off when the vehicle stops. ... > more -
Recycling and Waste
Environmental Issues
Engineering and Construction
Markets and Finance
Sustainability
Engineering
RFID-Based Recycling Technology Makes Philadelphia Greener
Electrical engineers have developed a system that identifies a recycling bin by its household, using Radio Frequency IDentification (RFID) chips embedded in the bins. Bins are scanned and weighed ... > more -
Vision Researchers Test Theory on Visual Orientation
Vision researchers suspect that people who do not need maps to find their way may be remembering visual landmarks. To test this theory, the scientists are having volunteers navigate through a virtual ... > more -
Safer Ventilator Prevents Contamination From Water Condensation
Doctors can now keep patients who are in respiratory care safer with a new kind of ventilator. Ventilator oxygen is completely dry and needs to be humidified for the patient's comfort, but water can ... > more -
Oceanographers Uncover The Physics Of Rip Currents
Rip currents flow in very erratic patterns, not in steady courses as previously believed -- which may help explain why they can be so dangerous even for experienced swimmers. Oceanographers have ... > more -
Nature of Water
Robotics
Robotics Research
Insects (including Butterflies)
Drought
Artificial Intelligence
Mimicking Insects to Avoid Sinking Using Surface Tension
A new robot made of ultralight carbon-fiber can stand or slowly walk on water. The principle it uses is borrowed from insects -- surface tension tends to prevent the water's surface from breaking, ... > more -
Mechanical and Aerospace Engineers Show Human Locomotion Optimizes Energy Use
Computer models of human locomotion are helping engineers understand why walk and run instead of hopping and skipping. The models are revealing that walking and running are the most energy-saving ... > more
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