Topic: Acoustics & Sound

August 1, 2017 Elephant Seal Calls - Elephant seals recognize each other by rhythm and pitch of their calls.
July 6, 2017 Running Injury Acoustics - Scientists are measuring the acoustic properties of the shockwaves produced as our feet strike the ground as we run, helping to explain why so many runners get injured.
July 3, 2017 Drumming Cockatoos - Researchers discover that cockatoos use sticks and seed pods to drum out rhythms on tree limbs.
June 19, 2017 Noisy Fish - The loud noises made by spawning croakers could help fisheries manage their sensitive populations in Mexican waters.
May 30, 2017 Audio Sheets - Thin, flexible transducers could lead to newspapers that can hear and talk.
May 11, 2017 Human Noise in the Wilderness - Human-produced noise is adding significantly to the ambience in national parks.
March 21, 2017 Contagious Parrot Laughter - Rare New Zealand parrots start playing spontaneously when they hear certain calls.
February 15, 2017 Endangered Crow Calls - What happens to the calls of an endangered bird species when its only remaining members live in captivity?
February 13, 2017 Road Birds - Playing birdsongs near roads can entice birds to repopulate abandoned habitat.
February 8, 2017 Birdsong Warm-Ups - Songbirds, like people, may need to warm up their voices before they sing.
December 19, 2016 Coconut Rhinoceros Beetles - In a race against time, scientists attempt to stop an insect invader by using its own sounds.
November 23, 2016 Deafness & Brain Structure - The brain architecture for processing sound is the same in deaf people as in hearing people.
November 21, 2016 Musician’s Dystonia - Neuroscientists are looking for the roots of musician’s dystonia, a condition similar to writer’s cramp.
October 5, 2016 Dolphin Name Game - Each bottlenose dolphin makes up its own signature whistle early in life which functions much like a name.
September 28, 2016 Emotional Music - Music and speech use the same tonal qualities to evoke happy and sad emotions.
September 23, 2016 Bowhead Whale Songs - Bowhead whales in the Arctic Ocean sing a large variety songs to communicate with other whales.
September 22, 2016 Brain Voices - Scientists are beginning to reconstruct the words people hear based on electrical activity in their brains.
September 16, 2016 Hunting Bats - Noise caused by humans is invading natural ecosystems, but some animals have multiple sensory systems to deal with it.
August 22, 2016 Finch Warming Warnings - An Australian bird’s special call warns its unhatched chicks of a hot climate.
July 25, 2016 Humans & Honeyguides - African honeyhunters use a special call to get birds to lead them to the location of hives full of nutritious honey.
July 11, 2016 Sleeping Penguins - Just because they’re sleeping doesn’t mean penguins let down their guard.
June 22, 2016 Hospital Noise - Hospitals are noisy environments, but it doesn’t have to be that way.
May 26, 2016 Voice & Gender Perception - Subtle vocal cues lead us to perceive voices as feminine or masculine.
May 25, 2016 Vocal Fry - Why some popular singers express themselves with a bit of grit.
May 17, 2016 Mother’s Voice - Brain scans reveal the power of a mother’s voice on her child.
May 9, 2016 Vampire Bat Calls - Vocal communication between vampire bats who know each other helps them survive when they don’t get enough to eat.
April 28, 2016 Babies & Music - A new study suggests musical games with their parents could not only boost babies’ musical development, but could help them recognize speech patterns, too.
April 12, 2016 Communicating by Wing - Some birds use their feathers to produce loud sounds as part of elaborate mating rituals.
March 31, 2016 Thirsty Bats - How do bats find water in the dark?
March 2, 2016 Insects vs. Birds - The loud noise of insects causes some tropical birds to delay the onset of their morning song.
February 26, 2016 Robot Drum Arm - A robotic third arm helps drummers execute previously impossible percussion patterns.
February 25, 2016 Dialects & Society - While the media affect our vocabulary, our accents are a product of our community.
February 24, 2016 Female Songbirds - Female house wrens sing to defend their nest sites from intruders.
February 19, 2016 Children & Noise - Research suggests that children can’t filter out noise the way adults can, with profound implications for learning.
February 14, 2016 Children & Noise - Research suggests that children can’t filter out noise the way adults can, with profound implications for learning.
February 4, 2016 Singing Fruit Flies - Scientists listen in on fruit fly courtship calls to study the neural underpinnings of communication.
January 25, 2016 Casino Rats - Studying how rats respond to the same cues that encourage people to make unwise bets could lead to better treatments for problem gambling.
December 10, 2015 Knuckle Cracking - Cracking your knuckles sets off a tiny “firework explosion” in the joint.
December 3, 2015 Environment & Language Evolution - Do environmental variables like rainfall and vegetation shape the sounds of languages?
November 9, 2015 High-Tech Bee Monitors - Scientists monitor the health of bee colonies by analyzing the vibrations the insects make within their hives.
November 5, 2015 Invisible Frogs - A Science Update listener wants to know the identity of a nightly neighborhood noisemaker.
October 30, 2015 Alarm Call Mimics - A tiny Australian bird sets off false alarms to fool predators.
October 9, 2015 The Universal “Huh?” - Regardless of culture and language, conversations have a lot in common.
September 28, 2015 Ancient Hearing - Scientists re-create how our ancient ancestors heard their world.
September 7, 2015 Road Noise & Migratory Birds - Road noise negatively impacts migratory birds.
September 3, 2015 Handheld Navigator - A handheld navigation cube changes shape to guide users in the right direction.
August 19, 2015 Podcast for 19 August 2015 - ANCIENT ANATOMY (Encore Presentation) - What dental records from the Mesozoic era can tell us about the lives of dinosaurs. How humans are uniquely adapted to throw baseballs. Also: an automated nature recording system that's monitoring environmental change. And, could vaccinating children protect the elderly as well?
Whistled Turkish - A language researcher studies Turkish villagers who communicate through whistles.
August 17, 2015 Marmoset Baby Talk - A new study suggests baby marmosets’ calls change as they grow up - questioning more than 50 years of conventional wisdom about primate vocalizations.
July 17, 2015 The Screaming Brain - What qualities make screams so scary?