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Art conservators have been slow to adopt lasers as restoration tools, preferring their trusty scalpels and solvents to untried technologies. But the first systematic study of the long-term effects of lasers on paintings should help ease their doubts: the results show that lasers can be superior restoration tools without sacrificing the safety of priceless works of art.
The findings are reported in the Sept. 15 print edition of Analytical Chemistry, a peer-reviewed journal of the American Ch
Nature has been manipulating structures on the atomic and molecular scale for millions of years, in comparison humans have only been developing these techniques over the last few decades. Molecular engineering builds structures and devices at the smallest scales imaginable, aiming to make better materials, new types of information technologies, biomedical devices and much more. In an article, `Natural strategies for the molecular engineer`, published today in the Institute of Physics` journal, Nanote
Researchers say they have developed the world’s strongest, lightest solids. Called aerogels, the sturdy materials are a high-tech amalgam of highly porous glass and plastic that is as light as air.
#In light of the events of Sept. 11 and a heightened interest in homeland security, these new materials show promise as lightweight body armor for soldiers, shielding for armored vehicles, and stronger building materials, the researchers say.
The materials could also be used for better
Cornell University entomologists have unlocked an evolutionary secret to how insects evolve into new species. The discovery has major implications for the control of insect populations through disruption of mating, suggesting that over time current eradication methods could become ineffective, similar to the way insects develop pesticide resistance.
The researchers, led by Wendell L. Roelofs, the Liberty Hyde Bailey Professor of Insect Biochemistry at Cornell, made the discovery while exami
Engineers, computer scientists and graphics technology experts at Purdue University have created the first publicly available simulation that uses scientific principles to study in detail what theoretically happened when the Boeing 757 crashed into the Pentagon last Sept. 11.
Researchers said the simulation could be used as a tool for designing critical buildings – such as hospitals and fire stations – to withstand terrorist attacks.
The simulation merges a realistic-looking visual
For the first time, Stanford researchers have compared genetic patterns with archeological findings to discover that genetics can help predict with a high degree of accuracy the presence of certain artifacts. And they say the strength of this link adds credence to theories that prehistoric people migrated from the Middle East to Europe, taking both their ideas and their way of life with them.
“The recovery of history is really a jigsaw puzzle,” said Peter Underhill, PhD, senior research sci