![[ Back to EurekAlert! ]](http://www.eurekalert.org/images/back2e.gif){kind=small}
Public release date: 26-Oct-2011[ | E-mail |
Share ] Contact: Michael Bernstein
m_bernstein@acs.org
202-872-6042
American Chemical Society
Plans to reopen Spain's Altamira caves are stirring controversy over the possibility that tourists' visits will further damage the 20,000-year old wall paintings that changed views about the intellectual ability of prehistoric people. That's the topic of an article in the current edition of Chemical & Engineering News, ACS' weekly newsmagazine. The caves are the site of Stone Age paintings so magnificent that experts have called them the "Sistine Chapel of Paleolithic Art."
Carmen Drahl, C&EN associate editor, points out in the article that Spanish officials closed the tourist mecca to the public in 2002 after scientists realized that visitors were fostering growth of bacteria that damage the paintings. Now, however, they plan to reopen the caves. Declared a World Heritage Site by the United Nations' Educational, Scientific and Cultural Organization (UNESCO), Altamira's rock paintings of animals and human hands made scientists realize that Stone Age people had intellectual capabilities far greater than previously believed.
The article explains how moisture and carbon dioxide from tourists' breath, body heat and footsteps (which kick up bacterial spores) foster growth of bacteria on the cave walls. Those bacteria damage the precious wall paintings, which supposedly influenced great modern artists like Picasso. Drahl discusses the scientific controversy over limited reopening of the caves to tourism and measures that could minimize further damage to the paintings.
###
[ | E-mail | Share ] ?
AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert! system.
Public release date: 26-Oct-2011[ | E-mail |
Share ] Contact: Michael Bernstein
m_bernstein@acs.org
202-872-6042
American Chemical Society
Plans to reopen Spain's Altamira caves are stirring controversy over the possibility that tourists' visits will further damage the 20,000-year old wall paintings that changed views about the intellectual ability of prehistoric people. That's the topic of an article in the current edition of Chemical & Engineering News, ACS' weekly newsmagazine. The caves are the site of Stone Age paintings so magnificent that experts have called them the "Sistine Chapel of Paleolithic Art."
Carmen Drahl, C&EN associate editor, points out in the article that Spanish officials closed the tourist mecca to the public in 2002 after scientists realized that visitors were fostering growth of bacteria that damage the paintings. Now, however, they plan to reopen the caves. Declared a World Heritage Site by the United Nations' Educational, Scientific and Cultural Organization (UNESCO), Altamira's rock paintings of animals and human hands made scientists realize that Stone Age people had intellectual capabilities far greater than previously believed.
The article explains how moisture and carbon dioxide from tourists' breath, body heat and footsteps (which kick up bacterial spores) foster growth of bacteria on the cave walls. Those bacteria damage the precious wall paintings, which supposedly influenced great modern artists like Picasso. Drahl discusses the scientific controversy over limited reopening of the caves to tourism and measures that could minimize further damage to the paintings.
###
[ | E-mail | Share ] ?
AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert! system.
Source: http://www.eurekalert.org/pub_releases/2011-10/acs-cor102611.php
cliff lee cliff lee the raven the raven lawrence o donnell kelly ripa conrad murray
কোন মন্তব্য নেই:
একটি মন্তব্য পোস্ট করুন