Navigation Links
Highlights from major acoustical science and technology conference, Nov. 15-19

ing, November 19.


10) Acoustic Archaeology Reveals Mayan Political Grandstanding

The temples of the Ancient Mayans played an important role in politics that can't be seen, but must be heard instead, according to Sergio Beristain, a researcher at ESIME in Mexico City -- they allowed leaders to effectively speak to throngs of people in an age before the megaphone.

"Many of these pyramids that were built for cultural and religious purposes were also used a lot for giving messages to the people," says Beristain.

Given the number of people who gathered at these sites -- crowds of as many as 10,000 people -- it would have been impossible for priests and political figures to address the masses from ground level.

Using microphones and recording devices, Beristain has measured the way that sound attenuates and disperses from the top of these structures, and found that a human voice could carry remarkably well and maintain its intelligibility.

Architectural features and walls may have helped to carry the sound farther.

"Because they are in a high position, everyone receives the sound from a good angle," says Beristain "From some of these pyramids, you could talk to someone a little over a hundred meters away without having to shout."

Dr. Beristain's presentation is part of session devoted to the acoustics of ancient civilizations.

The talk "Pyramids and basements (2pAA6)" by Sergio Beristain will be at 3:30 p.m. on Tuesday, November 16.


Dr. Beristain has written a lay-language paper that describes this research in greater detail. It is available upon request and

Contact: Jason S. Bardi
American Institute of Physics

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

Related biology news :

1. 2010 AAO-HNSF new research highlights: Tuesday, Sept. 28, 2010
2. 2010 AAO-HNSF new research daily highlights: Sunday, Sept. 26, 2010
3. July 2010 Geology and GSA Today highlights
4. 5-year report highlights status of Washingtons forest resources
5. Selected highlights of the research being presented at the Experimental Biology 2010 meeting
6. Study highlights forest protected areas as a critical strategy for slowing climate change
7. Society of Interventional Radiology highlights medical advances, new discoveries
8. Study highlights sustainable footprint of chemical companies
9. Glacier-melting debate highlights importance of satellites
10. AGU journal highlights -- January 21, 2010
11. Conference highlights impact of unsettled summer weather on UK marine life
Post Your Comments:
(Date:9/16/2014)... of wild foods, autumn harks a season of bounty. ... luring intrepid collectors to woodlands in search of elusive ... in the allure of the treasure hunt, and their ... existence. But are the mushrooms which you are eating ... diverse yet vastly underdocumented although some estimates range ...
(Date:9/15/2014)... division has evolved a simple, mechanical solution to ... Sept. 11 Science Express. ... and misalignments that lead to infertility, miscarriage, or ... division cause these problems, but what exactly goes ... of the Wellcome Trust Center for Cell Biology ...
(Date:9/15/2014)... naturally across all kingdoms of life and constitute a ... of biological activities. The presence of halogen substituents in ... molecular properties. , One of the Holy ... late-stage, site-specific incorporation of a halogen atom into a ... (one of the most inert chemical bonds known in ...
Breaking Biology News(10 mins):What's for dinner? Rapidly identifying undescribed species in a commercial fungi packet 2What's for dinner? Rapidly identifying undescribed species in a commercial fungi packet 3Cells simply avoid chromosome confusion 2Cells simply avoid chromosome confusion 3Pitt chemical biologist finds new halogenation enzyme 2
... HOUSTON, Feb. 5, 2009 Gov. Rick Perry today announced ... of Houston through the Texas Emerging Technology Fund (ETF). ... recruited a top hormones researcher and his team to carry ... technologies at a world-class center to be established by UH ...
... DAVISA major cause for biodiversity may be biodiversity itself, ... California, Davis, whose newly published research shows that when ... the apple, that triggered a cascading effect on the ... parasitic wasp ( Diachasma alloeum ) that attacks the ...
... It,s not uncommon for students to consume energy drinks to ... drinks are the coffee of a new generation," says Stphanie ... nutrition think-tank. "These drinks are made up of sugar and ... According to a 2008 report by Agriculture and Agri-Food Canada, ...
Cached Biology News:Internationally acclaimed researcher joins UH faculty thanks to $5.5 million grant 2Internationally acclaimed researcher joins UH faculty thanks to $5.5 million grant 3Internationally acclaimed researcher joins UH faculty thanks to $5.5 million grant 4Internationally acclaimed researcher joins UH faculty thanks to $5.5 million grant 5Host shift triggers cascading effect on ecosystem, research finds 2
(Date:9/17/2014)... (PRWEB) September 17, 2014 The ... (ACRES) , a multi-stakeholder non-profit collaborative building a ... in clinical research, today announced Phase 3 of ... , Amir H. Kalali, Vice-President, Global ... Arti Bajpai, President, Compliance and Quality Integration (CQI) ...
(Date:9/16/2014)... This report analyzes the worldwide markets for Bioinformatics in US$ ... The report provides separate comprehensive analytics for the US, ... Europe , Asia-Pacific , ... estimates and forecasts are provided for the period 2013 through ... markets. Market data and analytics are derived from primary and ...
(Date:9/16/2014)...  Biocom, the association representing the Southern ... th Annual National Health Information Technology Week, which ... improving our health care system. " ... world,s most vibrant hubs for health IT and digital ... genomic testing to remote patient monitoring," said Joe ...
(Date:9/16/2014)... cell phones to cars and flashlights, batteries play ... technology companies constantly are seeking ways to improve ... time using a water-based solution, researchers at the ... more efficient nuclear battery that could be used ... source in automobiles and also in complicated applications ...
Breaking Biology Technology:Global Standards Initiative for Clinical Research Sites Advances 2Global Standards Initiative for Clinical Research Sites Advances 3Global Standards Initiative for Clinical Research Sites Advances 4Global Bioinformatics Industry 2Global Bioinformatics Industry 3Global Bioinformatics Industry 4Global Bioinformatics Industry 5Global Bioinformatics Industry 6Global Bioinformatics Industry 7Global Bioinformatics Industry 8Global Bioinformatics Industry 9Global Bioinformatics Industry 10Global Bioinformatics Industry 11Global Bioinformatics Industry 12Global Bioinformatics Industry 13Global Bioinformatics Industry 14Global Bioinformatics Industry 15Global Bioinformatics Industry 16Global Bioinformatics Industry 17Global Bioinformatics Industry 18Global Bioinformatics Industry 19Global Bioinformatics Industry 20Global Bioinformatics Industry 21Global Bioinformatics Industry 22Global Bioinformatics Industry 23Biocom Recognizes National Health IT Week 2
... - Three years ago, entrepreneurs Nathan Lustig and John ... oft-criticized textbook exchange at the University of Wisconsin-Madison . ... being ripped off. He saw students regularly selling used books ... price, and he saw an opportunity to cut out the ...
... Friedman's 2005 New York Times' article "It's a ... World is Flat: A Brief History of the Twenty-First Century"), he ... trip to the New World. Whereas Columbus told the Spanish king ... his wife that the world, in fact, is not round but ...
... all the hype, all the emotional arguments, and all the ... , ,In the great race for global competitiveness, economic development ... for broadband connectivity is the need for speed. Thats all ... need to know. , , AT&T's Project Lightspeed ...
Cached Biology Technology:Website targets college students nationwide 2Website targets college students nationwide 3Website targets college students nationwide 4The flattening world and its impact on U.S. biotech 2The flattening world and its impact on U.S. biotech 3The flattening world and its impact on U.S. biotech 4The flattening world and its impact on U.S. biotech 5The flattening world and its impact on U.S. biotech 6Broadband blues: Don't fall for Lightspeed hype 2Broadband blues: Don't fall for Lightspeed hype 3Broadband blues: Don't fall for Lightspeed hype 4Broadband blues: Don't fall for Lightspeed hype 5
... induced prior to DNA purification increasing DNA ... single-copy BACs with the high yields associated ... kits provide the linearized vector and associated ... necessary to create a 10X human BAC ...
Screening assay to detect the Listeria monocytogenes in food samples by,DNA amplification and molecular hybridization on a microtiter plate....
... CopyControl™ vector can be induced prior to ... provide the stability of single-copy BACs with ... other cloning vectors. The kits provide the ... insert size screening system) necessary to create ...
... EPICENTREs patented MasterAmp™ 10X PCR ... performance and allows improved sensitivity and ... templates. Using MasterAmp™ PCR Enhancer in ... of DNA melting, increases enzyme?s thermal ...
Biology Products: