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India Asteroid Killed Dinosaurs, Made Largest Crater?
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"The dinosaurs were really unlucky," said study co-author Sankar Chatterjee, a paleontologist at Texas Tech University in Lubbock.
Chatterjee thinks this second asteroid impact created a 300-mile-wide (500-kilometer-wide) depression on the Indian Ocean seafloor, which his team began exploring in 1996.
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His team has dubbed this depression the Shiva crater, after the Hindu god of destruction and renewal.
"If we are correct," Chatterjee said, "this is the largest crater known on Earth."
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The Shiva asteroid impact was powerful enough to vaporize Earth's crust where it struck, allowing the much hotter mantle to well up and create the crater's tall, jagged rim, Chatterjee estimates.
What's more, his team thinks the impact caused a piece of the Indian subcontinent to break off and drift toward Africa, creating what are now the Seychelles islands
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Saturday, October 17, 2009
India Asteroid Killed Dinosaurs, Made Largest Crater?
होती रही कदम रसूल की मान-मनव्वल
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बिछिया निवासी कदम रसूल आज एकाएक मंदिर पहुंच गये, वहां पूजन-अर्चन में भी हिस्सा लिया।
ज्ञातव्य है कि बिछिया बाजार सीमावर्ती जिले लखीमपुर से सटा है। यहां मस्जिद निर्माण को लेकर देवबंद और बरेलवी मुसलमानों के बीच कुछ बिंदुओं पर एकराय नहीं थी। मस्जिद निर्माण में बढ़-चढ़कर सहयोग देने वाले सामाजिक कार्यकर्ता कदम रसूल इसी बात से आज एकाएक आहत हो उठे। उनका गुस्सा कुछ इस कदर बढ़ गया कि वह स्थानीय बाजार में स्थित हनुमान मंदिर पहुंच गए और घोषणा कर दी कि वह हिन्दू धर्म अपना रहे हैं। मामले की खबर उलमा और मौलानाओं को लगी तो कदम रसूल से मिलकर कई चक्रों में बात की। बताया जा रहा है कि देर शाम लोग उन्हें मनाने में सफल हो गए।
- बहराइच
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China begins building dam on its side of the Brahmaputra
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China begins building dam on its side of the Brahmaputra
- So far, Beijing has denied any plans to build a dam on its side of the Brahmaputra river. But strong evidence has now emerged to suggest that China has begun constructing a dam on the river which it calls the Yarlungzangbo (better known as Yarlong Tsangpo to the Tibetans).
It’s learnt that the Zangmu hydroelectrical project was inaugurated on March 16 this year and the first concrete was poured on April 2.
- satellite image, february 2009
- From preliminary information available with India, the Chinese plan to have a series of five medium-sized dams along the river in the Nanshan region of Tibet at Zangmu, Jiacha or Gyatsa, Zhongda, Jiexu and Langzhen.
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This exchange, however, has been restricted to flood season data and Indian efforts to widen the scope of information-sharing have not moved forward.
China, sources said, never informed India about its plans or this specific project.
- Along with India, Bangladesh is another country that would be affected by dams and has often voiced concerns in this regard.
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Shadow Warrior: Saudis ask for aid if world cuts dependence on oil
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Shadow Warrior: Saudis ask for aid if world cuts dependence on oil
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There are plenty of needy countries at the U.N. climate talks in Bangkok that make the case they need financial assistance to adapt to the impacts of global warming. Then there are the Saudis.
Saudi Arabia has led a quiet campaign during these and other negotiations — demanding behind closed doors that oil-producing nations get special financial assistance if a new climate pact calls for substantial reductions in the use of fossil fuels.
- An Arab environmental group IndyACT and the environmental group Germanwatch released a report today accusing Saudi Arabia of blocking key elements of the negotiations. Among their tactics, the groups said, was slowing negotiations by insisting that the economic woes of oil producers be included in the text.
- Both rich and poor countries are counting on a transition to a low carbon economy as a key component of meeting their reductions, a move that would require them to away from fossil fuels and toward renewables like solar, wind and hydro power.
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