Washington, Oct 5 : With its history dating back to 5,000 years, the nature of glass is still a mystery to scientists. Now, a professor of chemical engineering at the University of Delaware claims that he knows why glassy materials make the transition from a molten state to a solid.
Archaeological evidence suggests that glass was first made in the Middle East sometime around 3000 B. C.
According to Richard Wool, what distinguishes glasses from other materials is that even after hardening, they retain the molecular disorder of a liquid. In contrast, other liquids, for example water
- assume an ordered crystal pattern when they harden.
Washington, Oct 5 : On several occasions over the past four years, Afghan President Hamid Karzai’s brother Ahmed Wali Karzai has been found involved in drugs trade, but no action has been taken against him yet. Even US’ requests have proved to have fallen on deaf ears of the Afghan President, said a detailed report in New York Times.
Even the President rubbished the reports saying that they were substantiated with any concrete proof.
Washington, Oct 5 : Beijing has warned that the US’ decision to sell weapons to Taiwan worth more than six billion dollars would hamper US-China relations. Following the US announcement on Friday in this regard, officials in Beijing issuing denunciations and warnings that the weapons deal could “worsen bilateral relations”.
Washington, Oct 5 : Archaeologists from the University of California, Berkley (UCB), have uncovered a mystery, with the discovery of a tomb, skeletons and burial rites with both Christian and Pagan elements in Kaukana, an ancient Roman village near Sicily, Italy.
Combing through the sand-buried site, the 15-member team, led by Professor Roger Wilson made a series of startling discoveries.
Central to the mystery was finding a tomb inside a room in a house dating from the sixth century AD.
Washington, Oct 5 : Excavations at two regions in Vietnam have revealed findings from the Stone Age and Bronze age, which includes tombs and artifacts.
Following excavation work at the Dong Trong I and II grottoes in the northern province of Quang Ninh, archaeologists affirmed that this was the tomb of Stone Age humans belonging to the Ha Long culture, dating back to 3,000 - 4,000 years ago.
Meanwhile, bronze work excavated at Go Bong in the midland province of Phu Tho has shed light on the Phung Nguyen culture (about 3,500-4,000 years ago).
Washington, Oct 5 : On several occasions over the past four years, Afghan President Hamid Karzai’s brother Ahmed Wali Karzai has been found involved in drugs trade, but no action has been taken against him yet. Even US’ requests have proved to have fallen on deaf ears of the Afghan President, said a detailed report in New York Times.
Washington, Oct 5 : Beijing has warned that the US’ decision to sell weapons to Taiwan worth more than six billion dollars would hamper US-China relations. Following the US announcement on Friday in this regard, officials in Beijing issuing denunciations and warnings that the weapons deal could “worsen bilateral relations”.
Washington, Oct 5 : Scientists have characterized a new type of aerosols from the Sahara desert, which could be useful to study climate change.
Archaeologists from the University of California, Berkley (UCB), have uncovered a mystery, with the discovery of a tomb, skeletons and burial rites with both Christian and Pagan elements in Kaukana, an ancient Roman village near Sicily, Italy.
