A magnetically actuated acoustic metamaterial
Space coiling acoustic metamaterials are static and require manual reconfiguration for sound-field modulation. In a new report published in Communications Materials, Christabel Choi, and a team of scientists in computer science and engineering in the.....»»
RF BAW filter maker Akoustis builds Asia-Pacific foothold in Taiwan
Akoustis Technologies, a US-based IDM of bulk acoustic wave (BAW) high-band filters for mobile and other wireless applications, has located its Asia-Pacific foothold in Taoyuan, northern Taiwan, looking to better serve Taiwanese ODMs and explore more.....»»
Team develops a powerful Bragg reflector with ultrahigh refractive index metamaterial
We all look in the mirror at least once a day to see our reflection. Mirrors are used not only in daily life but also in cutting-edge technologies such as semiconductor processing and high-resolution displays. Recently, a powerful Bragg reflection mi.....»»
These Bats Buzz like Bees to Save Their Own Lives
New research has discovered the first case of acoustic mimicry between a mammal and an insect—an acquired skill that could just save certain bats’ skin......»»
Humpback whale songs spread from pod to pod across the Pacific Ocean
A team of researchers with members from the University of St Andrews, Universidad San Francisco de Quito and the CETACEA Ecuador Project's Acoustic Ecology Program has found that songs created by humpback whales in some parts of the Pacific Ocean are.....»»
Saturn V was loud but didn"t melt concrete
The Saturn V carried man to the moon and remains the most powerful rocket to successfully launch to orbit. It captures the imagination—but sometimes, it might capture a bit too much imagination. Abundant internet claims about the acoustic power of.....»»
Asian elephants have a nasal pronunciation
With the help of an acoustic camera that visualizes sound pressure, researchers from the University of Vienna investigated the calls of Asian elephants. The elephants emitted their low frequency "rumbles" mainly through their trunk or through their m.....»»
Daily deals August 23: $299 iPad, $336 off 49-inch Samsung Curved 120Hz Monitor, $700 off EVGA GeForce RTX 3090 Ti, more
Tuesday's best deals include an Anker 737 Power Bank for $120, a Segway Go Kart Pro for $300 off, a Fender Concert Acoustic Guitar for $139, and much more.Best deals for August 23Every day, AppleInsider searches online retailers to find offers and di.....»»
Topographic complexity is the most significant factor influencing bird acoustic indices in tropical forests
Ecoacoustics is an interdisciplinary science investigating soundscapes and their association with the environment over various temporal and spatial scales. Despite the data processing challenges (e.g., automated species identification), soundscape mo.....»»
NASA data, acoustic soundscapes assess health of Amazon rainforest
From space, parts of the Amazon rainforest that have previously been logged or burned may look fully recovered with a healthy, lush, and green canopy. They may seem to be places buzzing with activity and full of sounds. But inside the rainforest the.....»»
Auto supplier Gissing North America files for bankruptcy
Gissing is a subsidiary of a Chinese automotive supplier, and manufactures interior acoustic and cargo management systems......»»
How ancient soldiers used sound to frighten and confuse their enemies
As if the tumultuous din of battle is not horrendous enough, over the ages humans have discovered plenty of ways to exploit sound in warfare. I found an astonishing variety of ancient acoustic weapons while researching my book "Greek Fire, Poison Arr.....»»
How bat brains listen for incoming signals during echolocation
Neuroscientists at Goethe University, Frankfurt have discovered a feedback loop that modulates the receptivity of the auditory cortex to incoming acoustic signals when bats emit echolocation calls. In a study published in the journal Nature Communica.....»»
Acoustics researchers develop novel underwater carpet cloak
Acoustic camouflage, realized by controlling wave propagation, has attracted much attention in recent years. Aided by a reflecting surface, acoustic carpet cloak has become one of the most practically feasible invisibility devices......»»
Magnetically charge your smartphone with Veger’s MagOn Magnetic Wireless Power Bank
Thanks to Apple’s MagSafe technology, we’re starting to see more unique accessories, like the MagOn Magnetic Wireless Power Bank. The post Magnetically charge your smartphone with Veger’s MagOn Magnetic Wireless Power Bank first appeared on Pha.....»»
Chiral sources for metamaterial interface waveguides
Metamaterial interface waveguides can confine and guide electromagnetic (EM) waves, which has attractive potential in integrated photonics physics and wireless devices, from radio frequencies to optical bands. The energy flow in waveguides can be ful.....»»
Forget Lasers. The Hot New Tool for Physicists Is Sound
From acoustic tweezers to holograms, engineers are taking inspiration from the field of optics—and riding the sound wave......»»
The ocean is not a quiet place
For a long time, the great ocean explorers used sight to reveal the secrets of the marine environment, downplaying its acoustic aspects. Indeed, the ocean has long been considered a place devoid of any sound......»»
Maxscend to commercialize production of SAW filters
China-based Maxscend Microelectronics, dedicated to supplying RF frontend chips such as RF switches and low-noise amplifiers, is set to kick off trial production of SAW (surface acoustic wave) filters as a new offering later in 2022, according to ind.....»»
Tangle-Free Magnetic USB Cables Are Here
The Verge's Sean Hollister has been testing a number of "nifty" USB cables that magnetically stick to themselves and don't get all tangled up in your drawers and bags. The only problem is "they all suck big time at data transfer, charging, or both,".....»»
DeepSqueak tool identifies marine mammal calls
Lurking beneath the ocean's surface, marine mammals use sound for navigation, prey detection, and a wide range of natural behaviors. Passive acoustic data from underwater environments can provide valuable information on these animals, such as their p.....»»