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04 August 2020 | Story Dr Nitha Ramnath

Apart from its devastating impact on people’s lives and livelihoods, the COVID-19 pandemic has also affected the nature and quality of our democracies – democracy read in its widest sense here as collective and individual self-determination. Formal, institutional democracy has beencurtailed through the imposition of states of emergency or disaster and the logistical difficulties associated with social distancing. Extra-institutional democratic work, such as protest and social-movement activity, has suffered from prohibitions imposed by law and through state suppression related to ‘lockdown’. The nature (and perhaps democratic quality) of public conversation has changed – for better or worse – from increasing reliance on ‘science’ and ‘scientists’ to justify public choices. The crisis has brought to the fore already existing characteristics of our democracies, such as the prevalence and power of special-interest bargaining, the extreme inequality of our societies, and chauvinist nationalisms that force us to ask whether we have ever had democracy at all. What will be the long-term effects of these impacts of the crisis on our democracies? What will democracy look like post-COVID? What does the crisis teach us about what our democracies have always been?

Join us for a discussion of these and other democracy-related issues in these troubled times by a panel of four hailing from Colombia, India, South Africa, and the USA.

Date: Thursday, 13 August
Time: 14:00-16:00 (South African Standard Time – GMT +2)

 

Please RSVP to Mamello Serasengwe at serasengwemsm@ufs.ac.za no later than 12 August 2020 upon which you will receive a Skype for Business meeting invite and link to access the webinar

Panel

Prof Natalia Angel Cabo (University of Los Andes, Bogota, Colombia)

Dr Quaraysha Ismail-Sooliman (University of Pretoria, Pretoria, South Africa)

Dr Usha Ramanathan  Independent Law Researcher  (Delhi, India)

Prof Katie Young (Boston College, Boston, USA) 

Moderator

Prof Danie Brand (Free State Centre for Human Rights, University of the Free State, Bloemfontein, South Africa)   




News Archive

Two scientists part of team that discovers the source of the highest energy cosmic rays at the centre of the Milky Way
2016-03-22

Description: Giant molecular clouds  Tags: Giant molecular clouds

Artist's impression of the giant molecular clouds surrounding the Galactic Centre, bombarded by very high energy protons accelerated in the vicinity of the central black hole and subsequently shining in gamma rays.
Artist's impression: © Dr Mark A. Garlick/ H.E.S.S. Collaboration

Spotlight photo:
Dr Brian van Soelen and Prof Pieter Meintjes of the UFS Department of Physics.
Photo: Charl Devenish

H.E.S.S. (High Energy Stereoscopic System) scientists publically revealed their latest galactic discovery in the international science journal, Nature, on 16 March 2016. These scientists were able to pinpoint the most powerful source of cosmic radiation – which, up to now, remained a mystery.

Part of this team of scientists are Prof Pieter Meintjes and Dr Brian van Soelen, both in the University of the Free State (UFS) Department of Physics. Dr Van Soelen explains that they have discovered a proton PeVatron – a source that can accelerate protons up to energies of ~1 PeV (10^15 eV) – at the centre of the Milky Way. The supermassive black hole called Sagittarius A has been identified as the most plausible source of this unprecedented acceleration of protons.

The protons are accelerated to Very High Energy (VHE) gamma rays. The energy of these protons are 100 times larger than those achieved by the Large Hadron Collider at CERN (the European Organization for Nuclear Research).

According to Dr Van Soelen, the fact that this research has been published in Nature demonstrates the importance and pioneering nature of the research conducted by H.E.S.S. The H.E.S.S. observatory – operational in Namibia – is a collaboration between 42 scientific institutions in 12 countries.

In 2006, H.E.S.S. was awarded the Descartes Prize of the European Commission – the highest recognition for collaborative research – and in 2010 the prestigious Rossi Prize of the American Astronomical Society. The extent of the observatory’s significance places it among the ranks of the Hubble Space Telescope and the telescopes of the European Southern Observatory in Chile.

“The next generation VHE gamma-ray telescope,” Dr Van Soelen says, “will be the Cherenkov Telescope Array (CTA), which is currently in the design and development stage.” Both Dr Van Soelen and Prof Meintjes are part of this project as well.

H.E.S.S. has issued a complete statement about the paper published in Nature.

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