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Page 25 - பல்கலைக்கழகம் ஆஃப் இந்ந்‌ஸ்ப்ரக் News Today : Breaking News, Live Updates & Top Stories | Vimarsana

World-first artefact dating method shows humans have lived in the shadow of the Himalayas for more than 5,000 years

Oldest human traces from the southern Tibetan Plateau in a new light

For the first time, Michael Meyer and Luke Gliganic from the Department of Geology at the University of Innsbruck have used a new optical dating technique to directly constrain the age of prehistoric stone artefacts from an archaeological site in southern Tibet. The findings are more than 5,000 years old and thus the oldest evidence of human presence in this part of the Tibetan Plateau. The study has been published in the journal Science Advances.

Climate change: Worldwide emergence of dead zones in lakes

Date Time Climate change: Worldwide emergence of dead zones in lakes As climate change progresses, lakes also warm up, the oxygen concentration in the water decreases and dead zones in deep zones develop. Ruben Sommaruga from the Institute of Ecologyand an international team of researchers were the first to identify this dramatic widespread development in a study of 393 lakes around the world. The results were published in the journal Nature. The temperature in lakes is also subject to the continuous warming of the climate. As water temperature increases, gas diffusion at the surface of lakes decreases and thus, the oxygen concentration in the lake decreases as well. Ruben Sommaruga and more than 40 scientists from all over the world studied the oxygen concentration in relation to temperature in 393 lakes over a period of more than 70 years. A total of 45,000 combined profiles of temperature and oxygen were analyzed. This close collaboration was made possible by the Global Lake Ec

Cercetătorii japonezi au forat cea mai adâncă gaură oceanică din istorie / VIDEO

Cercetătorii japonezi au forat cea mai adâncă gaură oceanică din istorie / VIDEO
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