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23 September 2020 | Story Rulanzen Martin
Prof Mongane Wally Serote said South Africa was created with people from all over who made this their home.
The Centre for Gender and Africa Studies (CGAS) prides itself in creating spaces for intellectual discourse. This was illustrated in a Heritage Day lecture webinar presented by National Poet Laureate, Prof Mongane Wally Serote. The lecture was in collaboration with the University of the Western Cape (UWC) and the Department of Sports, Arts and Culture.

The lecture took place on 23 September 2020. Dr Stephanie Cawood, director of CGAS was the programme director. 

Diversity is our biggest heritage

Prof Serote presented the webinar under the theme Going to Basics: The Reconstruction and Development Programme of the Source. “As South Africans, we came from everywhere and created a home here –- we are the microcosm of the world,” Prof Serote said as he started his lecture. He also said that diversity is the biggest heritage the country has, and that it is a cultural expression emanating from our most complex and difficult history.

The Constitution of our country is a piece of valuable evidence in the commitment to overcome our historical adversities. “Understanding our history seeks to persuade us as a nation, and to understand that change, is constant in the dynamism and dialectics of time,” said Prof Serote. He explained this by saying that, as a nation, we must become masters of knowledge of the constant systems of change and the management thereof.

“Since the outbreak of the coronavirus pandemic, we have quickly arrived at making fundamental changes and transformation,” he said. This is because the world is changing dramatically and very fast. “The biggest and most important lesson is that we dare not forget that humanity is one,” he said.

Social cohesion and nation building a shared responsibility 

As much as the webinar commemorated Heritage Day, it was also a poignant reminder of the role that universities have to place in society at large. “We at the UFS pride ourselves on providing space for debates. This is what we are hosting here today,” said Dr Chitja Twala, Vice-Dean of the Faculty of the Humanities at the UFS.  Dr Twala also said that Heritage Day is one of the milestone days on which “Africans pride themselves”.

The Deputy Minister of Sports, Arts and Culture, Nocawe Noncedo Mafu, referred to Dr Twala’s sentiment, saying that events such as these should be hosted “to foster social cohesion and nation building, which cannot succeed if it remains a project solely and exclusively owned by government”.  Deputy Minister Mafu reiterated that social cohesion and nation building should be a concern for the rest of the society. “I am therefore thrilled with this lecture and notably the partnership with the two universities," she said.

The national theme for Heritage Month 2020 is ‘Celebrating South Africa’s Living Legends.’

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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