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10 July 2018 Photo Johan Roux
Global Leadership Summit starts off on a high note
Students have robust discussions on global issues of social justice and politics

 Global Leadership Summit 2018

The 2018 Global Leadership Summit opened on 8 July 2018 on the Bloemfontein Campus of the University of the Free State (UFS) with an exciting Africa-themed event where local and international students and faculty members from more than 14 universities were in attendance. Prof Puleng LenkaBula, Vice Rector: Institutional Change, Student Affairs, welcomed delegates to the UFS, encouraging them to explore the opportunities which the summit presents to them, to learn, engage and take back valuable lessons to their home institutions, and to impart valuable knowledge that they bring to their peers.

Students play a key role in social justice
Prof Francis Petersen, UFS Rector and Vice-Chancellor, welcomed delegates at the summit’s grand opening session on 9 July, at which he highlighted the importance of the participation of young people in social justice and leadership. He emphasised the drive which the university has towards engaged scholarship and the role it has in effecting positive change to communities around it, the country and the world at large. Prof Petersen engaged with Mr Jay Naidoo, founding General Secretary of the Congress of South African Trade Unions (COSATU) and cabinet minister. Mr Naidoo was the keynote speaker and addressed the issues surrounding indigenous knowledge, the values that can be found in it, and the role students can have in protecting and highlighting the value of such knowledge systems to bring future change in the world. “Where do we start in decolonising history? The next generation is rising up to that as more young people want to know about the beginning of the beginning,” Mr Naidoo said.

Human value is central to role of universities
A panel discussion was presented on the topic of the challenges of human value and what universities are doing about it, with Dr Vivienne Felix from New York University in the US, Prof Allen Kim, International Christian University in Japan, Dr Caroline Suranksy, University of Humanistic Studies in the Netherlands, and Dr WP Wahl from the UFS, facilitated by Adjunct Associate Professor Ashraf Mahomed from the University of Cape Town. Dr Suransky said: “If we were to identify ourselves as earthlings rather than with our nationalities, what do you reckon we would learn at universities? How do we inter-connect with the earth rather than try to change it?” she asked.

More than just a summit
The summit, which is a joint programme between the International Office, Student Affairs and the Institute of Reconciliation and Social Justice, will continue with more panel discussions, robust engagements and more activities. It will increase focus on critical thinking, on modalities capable of developing students to function effectively in an increasingly interdependent and complex world. It will also focus on building capacity in intercultural competencies, and grow an appreciation of cultural, historical, religious, linguistic, and political angles. The summit will include an excursion to Kimberley and to Galeshewe township in Northern Cape. Delegates will have the opportunity to attend South African cultural events such as the annual Vrystaat Kunstefees/Free State Arts Festival which will be held on the Bloemfontein Campus from 10-14 July, as well as other African theatre productions. 

News Archive

Discovery in Scorpius constellation may signify clean energy for Earth
2017-01-23

 Description: Discovery in Scorpius constellation may signify clean energy for Earth Tags: Discovery in Scorpius constellation may signify clean energy for Earth

Earlier this year, a group of international astronomers
announced the discovery of an exotic binary star system,
AR Scorpii. The system is in the Scorpius constellation.
Photos: Supplied

See article on Nature’s website 

In future, stargazers and astronomers will look at the Scorpius constellation near the Milky Way with new eyes. Earlier this year, a group of international astronomers announced the discovery of an exotic binary star system, AR Scorpii. The system is in the Scorpius constellation.

Prof Pieter Meintjes, researcher in the Department of Physics at the University of the Free State (UFS), worked with four colleagues on what he describes as a “wonderful discovery”. This sensational discovery, which could lead to the production of cleaner energy on Earth, will be published in the research journal, Nature, early in 2017.

Model developed to interpret new set of measurements
The exotic binary star which was discovered consists of a red dwarf and a white dwarf revolving around each other every 3,5 hours. The binary system showed very prominent pulsations of 117 and 118 seconds respectively. The pulsations can be explained by a bundle radiation produced by the white dwarf star.

“These new observations have shown that the radiation is strongly polarised, a sign that we are dealing with synchrotron radiation here. Synchrotron radiation is produced by electrons accelerated to extremely high energy levels in the magnetic field of the white dwarf star,” says Prof Meintjes.

He developed a theoretical model to interpret a new set of measurements that was taken by the 1,9 m telescope and the 10 m SALT telescope at the South African Astronomical Observatory (SAA0).

Totally unique phenomenon could contribute to energy production on Earth
“I further indicated that the interaction between the magnetic fields of the white dwarf star and the red dwarf star induces secondary processes that specifically describe the behaviour of the radiation in the radio band and infrared band accurately. AR Sco is the first white-red dwarf binary system of which all the pulsated radiation could be explained by the synchrotron process, which is totally unique,” says Prof Meintjes.

According to Prof Meintjes, the value of the model lies in the fact that the processes which produce the radiation in AR Sco, can also be applied to produce energy on Earth.

 

Plasma reactors are based on roughly the same processes which apply in AR Sco, and with refining, it could be utilised to generate electricity in future. This will be much cleaner than nuclear energy.

 

The model developed by Prof Meintjes explains all the radiation in the system – from radio waves to X-rays – in terms of electrons accelerated to extremely high energy levels by electric fields in the system, which then produce synchrotron radiation over a very wide band of the electromagnetic spectrum.

Prof Meintjes is currently working on a follow-up article examining the evolution of the AR Sco, in other words, the origin of such a unique system and the final state towards which it is evolving. “My vision for the immediate future is therefore to develop a model for the evolution of the source concerned,” he says.

 

 

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