Tag Archives: sudan

Von Thailand bis Tahiti

Neue Rekorde bei globaler Klimaschutzaktion Earth Hour / 162 Länder und 7.000 Städte rufen zum Schutz des Planeten auf

Berlin – Von Thailand bis Tahiti, vom Vatikan bis Las Vegas und von der Internationalen Raumstation bis in den Sudan – am Samstag fand die achte WWF Earth Hour unter Rekordbeteiligung statt. Um ein Zeichen für den Schutz des Planeten zu setzen, schalteten jeweils um 20.30 Uhr Ortszeit Millionen Menschen und über 7.000 Städte in insgesamt 162 Ländern die Lichter aus. Während der „Stunde der Erde“ erlosch die Beleuchtung zahlreicher symbolträchtiger Bauwerke und Orte, darunter die  Golden Gate Bridge in San Francisco, der Petersdom im Vatikan, der Las Vegas Strip, der Burj Khalifa in Dubai oder der Tokyo Tower in Japan. Höher als je zuvor fiel auch die Teilnahme in Deutschland aus – 160 Städte und Gemeinden folgten dem Aufruf des WWF. (more…)

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Enormous scale of Nile ‘mega lake’ revealed

The eastern Sahara Desert was once home to a 45,000 km2 freshwater lake similar in surface area to the largest in the world today.

A study led by the University of Exeter has revealed that the mega lake was probably formed more than one hundred thousand years ago in the White Nile River Valley in Sudan.

Dr Tim Barrows of the University of Exeter and colleagues used a dating approach based on exposure to cosmic rays to measure the amount of the isotope beryllium-10 in shoreline deposits. Its abundance can be used to calculate how long rocks or sediments have been exposed at the surface of the earth. (more…)

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Amateur Astronomers to ‘Target Asteroids!’

Researchers on NASA’s robotic asteroid sample return mission, OSIRIS-REx, are turning to amateur astronomers for new data on near-Earth asteroids in a citizen science observing campaign called Target Asteroids!

Amateur astronomers are about to make observations that will affect current and future space missions to asteroids.

Some will use custom-made, often automated telescopes equipped with CCD cameras in their backyards. Others will use home computers to make remote observations with more powerful telescopes states or continents away. Many belong to leading national and international amateur astronomy organizations with members ranging from retirees to school kids. (more…)

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Making The Bones Speak

EAST LANSING, Mich. — In a narrow, modest laboratory in Michigan State University’s Giltner Hall, students pore over African skeletons from the Middle Ages in an effort to make the bones speak.

Little is known about these Nubians, meaning the information collected by graduate and undergraduate students in MSU’s Forensic Anthropology and Bioarchaeology Program will help shed light on this unexplored culture. (more…)

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