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16 October 2019 | Story Leonie Bolleurs | Photo Supplied
HESS
The High Energy Stereoscopic System.

Conducting research and teaching others about the complexities of the high-energy universe is what Prof Pieter Meintjes and Dr Brian van Soelen are doing. They are from the Department of Physics at the University of the Free State (UFS).

The UFS Astrophysics Research group is actively involved in the two major international gamma-ray astronomy collaborations, namely the High Energy Stereoscopic System (H.E.S.S) gamma-ray collaboration, which is operating telescopes in Namibia, as well as the newly created Cherenkov Telescope Array (CTA) collaboration, which is operating two major telescope facilities – one in Chile and one at La Palma in the Canary Islands. 

They are part of internal review panels to evaluate research publications produced in the H.E.S.S. collaboration before it is submitted for wider publication. Dr Van Soelen is also involved in a panel that coordinates multi-wavelength follow-up observations for the H.E.S.S. collaboration. Prof Meintjes represents the South African gamma-ray astronomers involved in CTA on a review panel that evaluates and reviews in-kind contributions for the collaboration by the various partner institutions.  

A night at the H.E.S.S. from Sabine Gloaguen on Vimeo.

News Archive

Darwin lecture focuses on the genetic foundation of evolution
2009-05-22

 
The Department of Genetics at the University of the Free State (UFS) recently made their contribution to the story of life and survival by presenting two lectures on The genetic foundation of evolution. Prof. Johan Spies, Head of the Department of Genetics at the UFS discussed the variation that was created by mutations and how this variation was enhanced by re-combination. He also pointed out that these methods contributed relatively little to the gene pool of a species and that the expansion of the gene pool primarily took place by means of chromosome evolution. The latter also contributed to the creation of isolation mechanisms to prevent hybridism. He further emphasised the multitude of deviations of mendelian heredity, which contributed to more variation within a species.

Prof. Paul Grobler, Associate Professor from this department, next pointed out how natural selection played a role to form new species. He used various examples to indicate how the process took its course, for example, lactose intolerance. He also reported out that the man on the street mostly believed that Darwin with his theory of the survival of the fittest meant that the physically strongest species would survive. It was more a case of the one that could reproduce the fastest and the most, that would survive, he stated.

Present at the occasion were, from left front: Ms Letecia Jonker, student, Prof. Grobler, Ms Paula Spies, lecturer at the Department of Genetics and Ms Zurika Odendaal, junior lecturer at the Department of Genetics; back: Prof. Spies.
Photo: Stephen Collett

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