Iranian President Hassan Rouhani inaugurates new centrifuges at the Natanz plant in Iran. (Screenshot/Iranian state TV)
Iran announced on Saturday that it has started up advanced centrifuges that enrich uranium more quickly, in a new breach of its undertakings under a troubled 2015 nuclear agreement.
Iranian President Hassan Rouhani officially inaugurated the cascades of 164 IR-6 centrifuges and 30 IR-5 devices at Iran’s Natanz uranium enrichment plant in a ceremony for National Nuclear Technology Day on Saturday broadcast by state television.
The broadcast aired no images of the cascades but broadcast a link with engineers at the plant who said they had introduced uranium hexafluoride gas to the cascades after receiving the order from Rouhani.
Switzerland still popular with overseas students despite Covid Published on Share
International students are still coming to Switzerland – a popular destination for overseas students – despite the coronavirus pandemic. But they face more challenges settling in.
When Italian Masters student Giuseppe Gruttad’Auria arrived in the western Swiss town of Fribourg in August last year, Covid-19 restrictions had been eased and universities were set to re-open for the autumn semester, albeit under strict hygiene and mask-wearing measures. He was able to attend a pre-semester French course, make some friends and get to know the region. But by November this had all changed.
Switzerland still popular with overseas students despite Covid
Students in September 2020, when Swiss universities were still open Keystone / Gian Ehrenzeller
International students are still coming to Switzerland – a popular destination for overseas students - despite the coronavirus pandemic. But they face more challenges settling in.
This content was published on March 9, 2021 - 09:00
March 9, 2021 - 09:00
Isobel Leybold-Johnson
Isobel trained as a journalist in Great Britain and speaks all three Swiss national languages. She reports on education for swissinfo.ch.
When Italian Masters student Giuseppe Gruttad Auria arrived in the western Swiss town of Fribourg in August last year, Covid-19 restrictions had been eased and universities were set to re-open for the autumn semester, albeit under strict hygiene and mask-wearing measures. He was able to attend a pre-semester French course, make some friends and get to know the region. But by November this had all changed.
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IMAGE: Aldo Antognini is happy that the long research effort yielded such an outstanding result. view more
Credit: Paul Scherrer Institute/Markus Fischer
In experiments at the Paul Scherrer Institute PSI, an international research collaboration has measured the radius of the atomic nucleus of helium five times more precisely than ever before. With the aid of the new value, fundamental physical theories can be tested and natural constants can be determined even more precisely. For their measurements, the researchers needed muons - these particles are similar to electrons but are around 200 times heavier. PSI is the only research site in the world where enough so-called low-energy muons are produced for such experiments. The researchers are publishing their results today in the journal