Navigation Links
Simple rubber device mimics complex bird songs
Date:11/21/2010

WASHINGTON, D.C., November 21, 2010 -- For centuries, hunters have imitated their avian prey by whistling through their fingers or by carving wooden bird calls. Now a team of physicists at Harvard University in Cambridge, Massachusetts, has reproduced many of the characteristics of real bird song with a simple physical model made of a rubber tube.

"We wanted to know if you [could] build a simple device, which has minimal control but reproduces some non-trivial aspects of bird song," says L Mahadevan, a professor at Harvard. The work is being presented today at the American Physical Society Division of Fluid Dynamics meeting in Long Beach, CA.

Bird song -- a complex sound full of intricate patterns and rich harmonics -- has long been studied by neuroscientists. Their research has explained much about how young birds learn these songs from adults and the complex neurological changes that allow them to control their voices.

But Aryesh Mukherjee, a graduate student in Mahadevan's laboratory, suggests that this neural control need not be as complicated as it could be. He suspects that the physics of a bird's vocal tract could explain much of the complexity of its voice, even with relatively simple neural control.

His bird call device consists of an air source, which creates a flow through a stretched rubber tube (modeled after a bird's vocal tract), and a linear motor that presses on the tube in a fashion analogous to a contracting muscle.

"Using this very simple device that pokes a tube, I see these beautiful sounds being produced without a sophisticated controller," says Mukherjee.

When analyzed on a spectrogram, the harmonics and other characteristics of the sounds made by the physical model closely resemble the songs of a zebra finch.

Another researcher in the lab, Shreyas Mandre, now an assistant professor at Brown University, is building mathematical models that seek to capture some of the unde
'/>"/>

Contact: Jason Socrates Bardi
jbardi@aip.org
301-209-3091
American Institute of Physics
Source:Eurekalert

Page: 1 2

Related biology news :

1. Radically simple technique developed to grow conducting polymer thin films
2. Sniffing out shoe bombs: A new and simple sensor for explosive chemicals
3. Simple approach could clean up oil remaining from Exxon Valdez spill
4. Caltech chemists develop simple technique to visualize atomic-scale structures
5. Health diagnosis made simpler
6. The secret of life may be as simple as what happens between the sheets -- mica sheets
7. Research develops simple recipe for fungus-free horseradish
8. Study finds that simple 2-question survey can better identify hungry children
9. Cheap, simple, noninvasive blood test may replace invasive diagnostic techniques in early pregnancy
10. New study documents use of hormone progesterone in simple microscopic aquatic animals
11. Pitt researcher says simple polymer-based filter successfully cleans water, recovers oil in Gulf of Mexico tests
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/5/2015)... , Jan. 30, 2015  It is gratifying ... power and potential for genomic science as a means ... disease prevention and treatment.  I was honored to participate ... government-funded precision medicine program. Since the ... science of genomics—from the first sequenced genome of a ...
(Date:1/22/2015)... 13, 2015  Today, FreeWavz ( www.FreeWavz.com ), the ... campaign on Fundable, https://www.fundable.com/freewavz . FreeWavz will ... capacity to meet customer demand. Logo ... http://photos.prnewswire.com/prnh/20150113/168790 Invented by Dr. ...
(Date:1/22/2015)... POINT ROBERTS, Washington , January 20, 2015 ... technology and tech stocks, releases video from the CES 2015 ... security consultant Apollo Robbins . Apollo shows ... Wocket™ biometric smart wallet, a product of NXT-ID, Inc. (NASDAQ: ...
Breaking Biology News(10 mins):J. Craig Venter, Ph.D., Co-Founder and CEO, Human Longevity, Inc. (HLI) Participates in White House Precision Medicine Event 2FreeWavz Launches on Fundable to Drive Speed-to-Market in 2015 2Apollo Robbins Talks about the Illusion of Personal Safety and How Easily Your Wallet is Stolen; If a Wocket Wallet is Stolen the Thief Can't do Anything With it! 2Apollo Robbins Talks about the Illusion of Personal Safety and How Easily Your Wallet is Stolen; If a Wocket Wallet is Stolen the Thief Can't do Anything With it! 3
... San Diego have received New Innovator Awards from the ... translation of cutting-edge science and research to improvements in ... of bioengineering at the UC San Diego Jacobs School ... of medicine at UC San Diego,s School of Medicine, ...
... in German . Scientists at the ... colleagues, have decoded the genome of the Pristionchus pacificus ... In their work, which has been published in the ... from Professor Ralf J. Sommer,s department in Tbingen have ...
... professor at the UC San Diego Jacobs School of Engineering, ... With a new $1.5 million New Innovator Award grant from ... to do just that. , The awards, announced Sept. ... of new investigators who have exceptional creativity and propose bold ...
Cached Biology News:NIH doles out $3M in new innovator awards to 2 UC San Diego faculty 2Insight into the evolution of parasitism 2Insight into the evolution of parasitism 3Generation innovation: Young UC San Diego bioengineer to use NIH grant to fuel tissue engineering 2Generation innovation: Young UC San Diego bioengineer to use NIH grant to fuel tissue engineering 3
(Date:3/2/2015)... Global Stem Cells Group.com has ... Bioengineering Co., Ltd. and its Chinese-American founder Mingjie ... stem cells training course in the City of ... Shenzhen HANK is a biotechnology company established in ... virologist, to integrate research, development, production, and sales ...
(Date:3/1/2015)... 01, 2015 Market Publishers Ltd ... quality market research promotion on Internet. MarketPublishers.com is ... worked out by DataGroup Booksellers. , Natalie Aster, ... Ltd, commented on the recent partnership agreement as ... in our team of publishers. Since 1974, the ...
(Date:2/27/2015)... Halifax, Nova Scotia (PRWEB) February 27, 2015 ... has been made aware of a fraudulent press release ... GlobeNewswire, purporting to be from Immunovaccine. This press release ... with Gilead Science, Inc. The press release did ... to the information contained within the press release. ...
(Date:2/27/2015)... Feb. 27, 2015  Pharmacyclics, Inc. (NASDAQ: ... studies for its newly developed Bruton,s tyrosine kinase ... been completed. The results of these preclinical evaluations ... Drug Administration. The feedback received from the Agency ... first-in-human study. Additional preclinical work is required to ...
Breaking Biology Technology:Global Stem Cells Group Announces Alliance with HANK Bioengineering Co., Ltd. in Shenzhen, China 2Global Stem Cells Group Announces Alliance with HANK Bioengineering Co., Ltd. in Shenzhen, China 3Market Publishers Ltd and DataGroup Booksellers Sign Partnership Agreement 2Market Publishers Ltd and DataGroup Booksellers Sign Partnership Agreement 3Immunovaccine Disclaims Hoax Press Release 2Pharmacyclics Provides Clinical Update on BTK Inhibitor for Autoimmune Diseases 2Pharmacyclics Provides Clinical Update on BTK Inhibitor for Autoimmune Diseases 3
... For the first time in Michigan, a,diseased kidney ... through a single incision., "We made several improvements ... type of procedure routinely," says Craig Rogers, M.D., Henry,Ford,s ... last week using the da Vinci Surgical System, which ...
... Provides Comprehensive Clinical Picture, Improves,Patient-Physician Communications, ... Hemophilia A patients who,use Helixate(R) FS, Antihemophilic ... tracking treatment progress in real time,thanks to ... management system recently introduced by CSL Behring. ...
... BOSTON, Aug. 25 Scimitar Equity, LLC ... Bulletin Board: VOQP), entitled,"Creating Value; Turnaround Leverages ... This review is available at website: ... a New Jersey-based biotechnology company,dedicated to becoming ...
Cached Biology Technology:State's First Single Incision Robotic Kidney Removal Performed at Henry Ford Hospital 2CSL Behring's Innovative HeliTrax(SM) System Helps Physicians Manage Hemophilia A Patients 2CSL Behring's Innovative HeliTrax(SM) System Helps Physicians Manage Hemophilia A Patients 3CSL Behring's Innovative HeliTrax(SM) System Helps Physicians Manage Hemophilia A Patients 4VioQuest Pharmaceuticals, Inc Q2/08 Review Issued by Scimitar Equity, LLC 2
... The Jouan MSC series of Class ... working conditions and certification to the ... regulation ensures that the cabinets cannot ... conditions. Natural lighting, low noise and ...
... Fluoroskan Ascent FL ... fluorometric and luminometric measurement ... long list of advanced ... and Luminoskan Ascent. Fluoroskan ...
Mouse monoclonal [AZ24] to Polo like kinase ( Abpromise for all tested applications)....
... Applied Science, which pioneered the blending of ... Fidelity and Expand Long Template PCR Systems, ... System the first product of a ... new blend combines Taq DNA Polymerase with ...
Biology Products: