Birth of the Milky Way

For the first time, a team of astronomers has succeeded in investigating the earliest phases of the evolutionary history of our home Galaxy, the Milky Way. The scientists, from the Argelander Institute for Astronomy at Bonn University and the Max-Planck Institute for Radioastronomy in Bonn, deduce that the early Galaxy went from smooth to clumpy in just a few hundred million years.The team publish their results in the journal Monthly Notices of the Royal Astronomical Society.

Led by Professor Dr. Pavel Kroupa, the researchers looked at the spherical groups of stars (globular clusters) that lie in the halo of the Milky Way, outside the more familiar spiral arms where the Sun is found. They each contain hundreds of thousands of stars and are thought to have formed at the same time as the ‘proto-Galaxy’ that eventually evolved into the Galaxy we see today.

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Intelligent Technologies Hold Key To Greener Buildings

The Deutsche Bank LEED Platinum Towers in Frankfurt

A new debate is a brewing in green-building circles as architects, engineers and designers consider what it means to incorporate intelligent-building elements into sustainable, “green” structures.

Since taking off in the early 2000s, the green building movement has made great progress. By 2013, LEED-registered projects are forecasted to make up 20 to 25 percent of all new building projects in the United States. And momentum is also building in existing facilities, where green retrofits are expected to comprise 30 percent of all commercial projects by 2014.

But these projects can and should be greener. What the worl  needs is better integration between the green , sustainable and intelligent schools of thought to move sustainable buildings to the next level.

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Whiter Clouds Could Mean Wetter Land

One proposed emergency fix to halt global warming is to seed clouds over the ocean to make them more reflective, reducing the solar radiation absorbed by the Earth. But the scheme could also change global rainfall patterns, raising concerns of water shortages on land. A new study by the Carnegie Institution, in collaboration with the Indian Institute of Science, suggests that altered atmospheric circulation under the scheme in fact could increase monsoonal rains and cause the continents to become wetter, not drier, on average.

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Rohtang Tunnel

Sonia Gandhi  laid the foundation stone for the 8.8-km-long horseshoe-shaped Rohtang tunnel, which would make travel to Leh in Jammu and Kashmir from Manali in Himachal Pradesh possible round the year.

At present, the Leh region remains cut-off for six months a year because of the closure of Leh-Manali and Leh-Srinagar roads due to snowfall in the winter.

Rohtang Tunnel is a tunnel proposed to be built under the Rohtang Pass in the Leh-Manali Highway. The 9 km long tunnel will be the longest road tunnel in India and is expected to reduce the distance between Manali and Keylong by over 60 km.It was planned to facilitate laying out of an alternative all-weather road route to strategically important areas of Ladakh and providing round-the-year connectivity to the remote Lahaul-Spiti valley.The project was conceived in 1983 and announced by Atal Bihari Vajpayee on 3 June 2000. The project was estimated to cost around INR 500 crores and to be completed in seven years. On 6 May 2002, Border Roads Organization was entrusted with the construction of the tunnel and on 23 May 2002, the work was inaugrated by Mr Vajpayee.. The cost of the project was revised to INR 1335 crore with an expected completion at 2010.However work didn’t progress much with the project not moving beyond tree felling stage by May 2003. By December 2004, the project cost estimate had escalated to INR 1700 crores  On May 2007, the contract was awarded to SMEC International Private Limited, an Australian company and the completion date revised to 2014.Despite multiple announcements that the work on the tunnel will begin on 2008, no progress had been made till Nov 2009.

Sources:

Wikipedia

HT


112-Year-Old Shipwreck Found in Lake Michigan

A huge wooden steamship that sank more than a century ago was found perfectly preserved at the bottom of Lake Michigan.A huge wooden steamship that sank more than a century ago was found perfectly preserved at the bottom of Lake Michigan.A huge wooden steamship that sank more than a century ago was found perfectly preserved at the bottom of Lake Michigan.

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Bishnoi Tribe in India

The Thar desert in India is full of ironies—one of them being the Bishnoi community of Rajasthan. Here, peace is maintained with aggression and robust health rubs shoulders with regular famine. Here penniless women flaunt heavy gold jewelery and wild animals leave the supposed security of jungles to stroll around village huts and farmlands. Not to mention the fact that the Bishnois worship nature in all its manifestations. Not the ripe, yielding nature of ancient pagan societies, but the ruthless and demanding desert where a desolate horizon meets a blazing sky. Here, women suckle motherless deer, die to save trees, go hungry to provide food for animals and live a strictly sattvic (simple) life.

The Bishnois, a Vaishnavite sect, living in western Rajasthan on the fringe of the Thar desert, have for centuries, been conserving the flora and fauna to the extent of sacrificing their lives to protect the environment. For these nature-loving people, protection of the environment, wildlife, and plants is a part and parcel of their sacred traditions. The basic philosophy of this religion is that all living things have a right to survive and share all resources.

They inhabit the area around Barmer and traces their ancestry to a saint and ascetic named Jambhaji, regarded by them as an incarnation of Lord Vishnu, whom they worship. An interesting rationale for the name of Bishnoi is that the sect follows twenty-nine doctrines and `Bishnoi` in the local dialect translates to twenty-nine, like, Bis (twenty) + noi (nine) = Bisnoi.

In the fifteenth century, Jambhoji, a resident of a village near Jodhpur, had a vision that the cause of the drought that had hit the area and hardship that followed was caused by people’s interference with nature. Thereafter, he became a sanyasi or a holy man and came to be known as Swami Jambeshwar Maharaj. This was the beginning of the Bishnoi sect. He laid down 29 tenets for his followers which included a ban on killing animals, a ban to the felling of trees – especially the khejri – which grows extensively in these areas, and using material other than wood for cremations. Nature protection was given foremost importance in these tenets. Since then, the sect has religiously followed these tenets.

There are many stories about how the Bishnois have beaten up hunters and poachers for intruding in their area. The sacrifice made by Amrita Devi and over 350 others is a heart-rending example of their devotion. The Maharaja of Jodhpur wanted to build a new palace and required wood for it. To procure this his men went to the area around the village of Jalnadi to fell the trees. When Amrita Devi saw this she rushed out to prevent the men and hugged the first tree, but the axe fell on her and she died on the spot. Before dying she uttered the now famous couplet of the Bishnois, ‘A chopped head is cheaper than a felled tree’. People from 83 surrounding villages rushed to prevent the men from felling the trees and by the end of the day more than 350 had lost their lives.

When the king heard about this, he was filled with remorse and came to the village to personally apologize to the people. He promised them that they would never again be asked to provide timber to the ruler, no khejri tree would ever be cut, and hunting would be banned near the Bishnoi villages. The village of Jalnadi thus came to be called Khejarli.

The Bishnois will go to any extent to protect the wildlife and the forests around them.Recently this sect was in the news due to the activities of some Mumbai film group that had gone on a hunting spree in their area targeting the black buck. The Bishnois, in keeping to their tradition, prevented them from doing so and lodged a complaint against two of them in the local police station.

The heartland of the Bishnois in the forests near Jodhpur is abundant in trees and wildlife. The landscape around here is greener than elsewhere and the animals mainly antelopes, particularly the blackbuck and the chinkara, in these forests are not afraid of humans and are often seen near the villages eating out of the villagers’ hands. The Bishnois have indeed proved that human lives are a small price to pay to protect the wildlife and the forests around them.

Though they are staunch Hindus they often do not cremate their dead but bury them, as they are not permitted to use wood for the cremation.

There is a saying that goes “Sir santhe rooke rahe to bhi sasto jaan” this means that if a tree is saved from felling at the cost of one’s head, it should be considered as a good deed. It is for this environmental awareness and commitment that the Bishnois stand apart from other sects and communities in India.

Sources:

Teri

India Net Zone

http://www.yatraindia.com/wildlife/bishnoi.htm

http://www.cdsp.neu.edu/info/students/ravi/kvs/kvs.html

Tribal Faiths – Bishnois : Fierce custodians of nature


Methane Emissions Caused by Warming 40,000 Years Ago

40,000 years ago rapid warming led to an increase in methane concentration. The culprit for this increase has now been identified. Mainly wetlands in high northern latitudes caused the methane increase, as discovered by a research team from the University of Bern and the German Alfred Wegener Institute for Polar and Marine Research in the Helmholtz Association. This result refutes an alternative theory discussed amongst experts, the so-called “clathrate gun hypothesis.” The latter assumed that large amounts of methane were released from the ocean sediment and led to higher atmospheric methane concentrations and thus to rapid climate warming.

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Images of Eath Distorted by Earthquakes

Earthquakes are often imagined as opening up large gaps in the land, sinking islands and the such. It is much harder in real life to see this change. NASA has recently released the first ever airborne radar images of the deformation in Earth’s surface caused by a major earthquake — the magnitude 7.2 temblor that rocked Mexico’s state of Baja California and parts of the American Southwest on April 4, 2010. The data reveal that in the area studied, the quake moved the Calexico, Calif., region in a downward and southerly direction up to 31 inches.

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Storm on an Exoplanet

An atmospheric storm is detected for the first time on an exoplanet. The technique used to detect the storm paves the way for understanding conditions on other worlds. The storm raging on HD 209458b whips around at speeds up to 6,200 m.p.h.

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Oceanic Temperatures and Climate Effects

The study of  climates from the past and oceanic temperatures can give clues as to how future climate changes will unfold. An international team of researchers, led by the members of the Institut de Ciència i Tecnologia Ambientals (ICTA) at the Universitat Autònoma de Barcelona (UAB), has  studied  the evolution of Northern Pacific and Southern Atlantic sea surface temperatures, dating from the Pliocene Era; some 3.65 million years ago. The results indicate that the regions closer to the poles of both oceans have played a fundamental role in climate evolution in the tropics.

Some High Points:

  • During the Pliocene epoch, the global average temperature was 5-7°F higher than today with global sea levels being about 80 feet higher and with a reduced northern hemisphere ice sheet. Towards he end of the era global cooling occurred.
  • A permanent El Niño state existed in the early mid Pliocene, warmer temperature in the eastern equatorial Pacific increased a water vapor greenhouse effect and reduced the area covered by highly reflective stratus clouds thus decreasing the albedo of the planet.
  • The ambient water temperature in which the organisms dwelt can be estimated from ratio of their unsaturated alkenones (C37-C39).
  • The formation of an Arctic ice cap was started as indicated by an abrupt shift in oxygen isotope ratios in the North Atlantic and North Pacific ocean beds. Mid-latitude glaciation was probably underway before the end of the epoch. The global cooling that occurred during the Pliocene may have spurred on the disappearance of forests and the spread of grasslands and savannas.

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