Scientists say Russian meteor shockwave went twice around globe
New 'hearing' maps are real conversation starters
Innovative sound-mapping software based on human hearing has been developed to help architects design out unwanted noise.
Perfect Pitch: Language Wins Out Over Genetics
Mozart, Tchaikovsky, Sinatra and Hendrix -- these and many other of the world's most famous musicians have had "perfect" or "absolute" pitch. The ability, defined as recognizing the pitch of a musical note ...
Optical system promises to revolutionize undersea communications
(PhysOrg.com) -- In a technological advance that its developers are likening to the cell phone and wireless Internet access, Woods Hole Oceanographic Institution (WHOI) scientists and engineers have devised ...
Making frequency-hopping radios practical
The way in which radio spectrum is currently allocated to different wireless technologies can lead to gross inefficiencies. In some regions, for instance, the frequencies used by cellphones can be desperately ...
Radar advance: Acoustic time delay device could reduce size and cost of phased array systems
(Phys.org) —Radar systems today depend increasingly on phased-array antennas, an advanced design in which extensive grids of solid state components direct signal beams electronically. Phased array technology ...
How do liquid foams block sound?
Liquid foams have a remarkable property: they completely block the transmission of sound over a wide range of frequencies. CNRS physicists working in collaboration with teams from Paris Diderot and Rennes ...
Acoustic tweezers capture tiny creatures with ultrasound (w/ Video)
A device about the size of a dime can manipulate living materials such as blood cells and entire small organisms, using sound waves, according to a team of bioengineers and biochemists from Penn State.
A unique glance into the Sun's atmosphere
Three months after the flight of the balloon-borne solar observatory Sunrise, scientists from the Max Planck Institute for Solar System Research (MPS) in Germany now present unique insights into the central ...
Tilted acoustic tweezers separate cells gently
Precise, gentle and efficient cell separation from a device the size of a cell phone may be possible thanks to tilt-angle standing surface acoustic waves, according to a team of engineers.
Comet landing named Physics World 2014 Breakthrough of the Year
The first ever landing of a man-made probe onto a comet has been named Physics World Breakthrough of the Year for 2014.
Thieving whale caught on video gives rare clues about hunting strategy, sound production
For decades scientists have been intrigued by the variety of sounds emitted by sperm whales, partly due to a popular theory that suggests that the sounds might contain information about the animals' size. ...
Flying Telescope Passes Key Test
Most astronomers wouldn't dream of opening their observatory's doors in 100 mph winds. Yet NASA's new SOFIA telescope recently flew in an airplane at 250 mph with doors wide open.
Revolutionary Communications System Promises New Generation of Untethered, Undersea Vehicles
(PhysOrg.com) -- Woods Hole Oceanographic Institution (WHOI) engineers and scientists are employing a combination of new undersea technologies to re-define how we think of tethered, remotely operated vehicles.