Navigation Links
Sound research at Acoustical Society meeting
Date:5/9/2011

rform the necessary analysis. A rudimentary prototype model has been tested, but Bowen believes that two more years will be needed before the system can be fully deployed. Presentation 3aEAa2, "Development of a portable system for acoustical reconstruction of tunnel and cave geometries," is in the morning session on Wednesday, May 25 in the Diamond room. Abstract: http://asa.aip.org/web2/asa/abstracts/search.may11/asa647.html

Evolution of Piano Wire

The keyboards of the last century are much different from those of Mozart's time. One of the things that changed during that century, along with piano design, was the availability of stronger piano wire. Purdue scientist Nick Giordano does not make piano wire but he measured the musical tones coming from four pianos built during the period from 1815 to 1912. Generally, piano designers compromise "between increasing the tension of the wires (which requires music wire of greater tensile strength or a larger diameter) and achieving a good tone quality (which requires a small string diameter)," said Giordano. Music wire improved during the period 1750-1820 with the advent of iron-wire technology and then again during 1840-1850 with the coming of steel wire, much stronger than iron wire. Earlier still, in Bach's time, harpsichords were the main wired keyboard instruments, Giordano said. "Bach only played a piano a few times, very late in his life, and never composed for the instrument." But harpsichords play at only a single level of volume. That's why pianos were invented to give performers more dynamic range. Pianos in Mozart's time provided this range. But even Mozart's pianos had only 61 notes (five octaves); Beethoven's piano had six octaves. By Brahms's time the modern piano had seven octaves, with 88 notes. Piano design hasn't changed much during the past century. But Giordano believes there is room for improveme
'/>"/>

Contact: Charles E. Blue
cblue@aip.org
301-209-3091
American Institute of Physics
Source:Eurekalert

Page: 1 2 3 4 5 6 7 8 9 10 11 12 13 14

Related biology news :

1. Researcher to present discoveries on medical uses of ultrasound to Londons Royal Society
2. Researcher to present discoveries on medical uses of ultrasound to London’s Royal Society
3. The science of sound
4. PMH researchers create an organic nanoparticle that uses sound and heat to find and treat tumors
5. Researchers discover new wintering grounds for humpback whales using sound
6. Medical imaging breakthrough uses light and sound to see microscopic details inside our bodies
7. Fall bonefish census sounds warning bell that warrants careful future monitoring
8. Author predicts widespread acceptance of pocket-sized ultrasound machines
9. Hearing colors, seeing sounds: New research explores sensory overlap in the brain
10. Bat brains offer clues as to how we focus on some sounds and not others
11. Undergraduates low-cost ultrasound system wins Gates Foundation grant
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/26/2015)... India , August 26, 2015 ... Three, Four, and Five Factor), Application (Travel & Immigration, ... Geography - Global Forecast to 2020", published by MarketsandMarkets, ... Billion by 2020, growing at a CAGR of 17.7% ... Tables and 82 F igures spread through 169 ...
(Date:8/20/2015)... Aug. 20, 2015   Sensory, Inc ., ... the user experience and security of consumer electronics ... announced that its TrulySecure™ is the ... to be FIDO Certified™. The FIDO ... with the FIDO UAF (Universal Authentication Framework) 1.0 ...
(Date:8/17/2015)... , Aug. 17, 2015  NXT-ID, Inc. (NASDAQ: ... authentication company focused on the growing mobile commerce market ... new sales campaign for Q4 2015. The new marketing ... team consisting of Amplitude Marketing Group ( http://amplitudemarketing.com/ ) ... Group is a leader in retail driven marketing and ...
Breaking Biology News(10 mins):Multi-Factor Authentication Market Worth 9.60 Billion USD by 2020 2Multi-Factor Authentication Market Worth 9.60 Billion USD by 2020 3Multi-Factor Authentication Market Worth 9.60 Billion USD by 2020 4Multi-Factor Authentication Market Worth 9.60 Billion USD by 2020 5TrulySecure From Sensory Becomes First Face and Voice Biometrics Technology to be FIDO UAF Certified 2TrulySecure From Sensory Becomes First Face and Voice Biometrics Technology to be FIDO UAF Certified 3TrulySecure From Sensory Becomes First Face and Voice Biometrics Technology to be FIDO UAF Certified 4TrulySecure From Sensory Becomes First Face and Voice Biometrics Technology to be FIDO UAF Certified 5NXT-ID, Inc. Launches Sales Campaign for Wocket Smart Wallet with Award Winning Marketing Team 2NXT-ID, Inc. Launches Sales Campaign for Wocket Smart Wallet with Award Winning Marketing Team 3
... and diabetes be prevented before birth? According to ... of Pediatrics and Professor of Genetics at the Washington ... adults are already genetically encoded in individuals while still ... address and prevent diseases in infancy. ...
... this edition of Science Picks, you can discover recent dramatic ... of nature, and how the USGS helps forecast and notify ... April showers are on their way. You can also find ... of Iraqis, and as you start gearing-up for baseball season, ...
... for Shelbyville Police Department, WALL, N.J., ... Board: BKYI), a leader in finger-based biometric,identification ... the,award of a contract from the Shelbyville, ... mobile data system. Using,MobileCop(TM) software, BIO-key,s wireless ...
Cached Biology News:Leading pediatrician addresses the future of children's health 2USGS April 2008 science picks 2USGS April 2008 science picks 3USGS April 2008 science picks 4USGS April 2008 science picks 5USGS April 2008 science picks 6USGS April 2008 science picks 7USGS April 2008 science picks 8BIO-key(R) Receives New Mobile Data Contract Award From Indiana Police Agency 2BIO-key(R) Receives New Mobile Data Contract Award From Indiana Police Agency 3
(Date:8/26/2015)... San Bruno, CA. (PRWEB) , ... August 26, 2015 , ... ... three major conferences to develop new business relationships with local sponsors in southern California. ... services to facilitate their drug development processes and regulatory pathways., , ...
(Date:8/25/2015)... Aug. 25, 2015   WuXi PharmaTech (Cayman) Inc. ... and technology platform company serving the pharmaceutical, biotechnology, and ... Pharm," Hong Kong Exchange Stock Code: 0950), a research-based ... with 20 years of operations in ... have signed an agreement whereby WuXi,s Laboratory Testing Division ...
(Date:8/25/2015)... ... 25, 2015 , ... Vets Plus, Inc. recently installed a ... has added a AS16 Sharples centrifuge to harvest products after fermentation. The addition ... fermentation process development. , The new centrifuge greatly expands production capabilities for ...
(Date:8/25/2015)... ... August 25, 2015 , ... One of the world’s foremost authorities ... Corp., Bindiya Vakil, has been on a mission for the past two weeks. She’s ... chain operations - from the two massive explosions that occurred on August 12 at ...
Breaking Biology Technology:PRC Clinical To Attend Major Industry Conferences And Meet Sponsor Companies In The San Diego Biotech Hub 2PRC Clinical To Attend Major Industry Conferences And Meet Sponsor Companies In The San Diego Biotech Hub 3WuXi PharmaTech to Be Exclusive Supplier of Laboratory Testing Services to Lee's Pharm 2WuXi PharmaTech to Be Exclusive Supplier of Laboratory Testing Services to Lee's Pharm 3New centrifuge and fermentor expand product development capacity at Vets Plus 2Resilinc Supply Chain Expert Warns: Impact of Tianjin Chemical Explosions Will be Far Worse than Reported 2Resilinc Supply Chain Expert Warns: Impact of Tianjin Chemical Explosions Will be Far Worse than Reported 3Resilinc Supply Chain Expert Warns: Impact of Tianjin Chemical Explosions Will be Far Worse than Reported 4
... SAN FRANCISCO, Jan. 24, 2012  Forty-five percent of doctors ... is doing better this year compared to last according ... free, web-based Electronic Medical Record (EMR) company. The second ... also showed that technology has made things easier for ...
... team have shown that they can prevent, or even reverse, ... dogs. The disease in humans and dogs is caused ... severe and progressive vision loss. It is one of the ... "Every single abnormal feature that defines the disease in ...
... at the University of New South Wales have observed a ... a single-atom silicon transistor. The findings, to be published ... offer a more complete understanding of the mechanisms for electron ... have been able to study some of the most complicated ...
Cached Biology Technology:Survey: Small Medical Practice Confidence Index Rises in 2012 2Survey: Small Medical Practice Confidence Index Rises in 2012 3Survey: Small Medical Practice Confidence Index Rises in 2012 4Gene therapy research from Penn Vet & Scheie Eye Inst. cures retinitis pigmentosa in dogs 2Gene therapy research from Penn Vet & Scheie Eye Inst. cures retinitis pigmentosa in dogs 3A new class of electron interactions in quantum systems 2
... The PolarScreen Peroxisome Proliferator-Activated Receptor-gamma ... a sensitive and efficient method ... PPARGamma ligands using fluorescence polarization ... PPARGamma-Ligand binding domain (PPARGamma-LBD) with ...
... is a small and sensitive single ... both LC and IC. It features a ... Ionization (API) source for outstanding sensitivity and ... with existing LC and IC methods, especially ...
The essence of fluorescence analysis is sensitivity. The high throughput optical system in the RF-5301PC employs a blazed holographic grating, photomultiplier and digital signal processing to provide...
... The CHEMICON® CaspaTag™ Caspase-9 Pan-Caspase In Situ ... for detection of active caspases in cells ... use only. Not for use in diagnostic ... Caspase Detection Kits use a novel approach ...
Biology Products: