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2021 Mandela Day Fitness Challenge

19 July 2021

The Faculty of Economic and Management Sciences invites all its academic departments to participate in the 2021 celebration of Nelson Mandela Day by requesting their staff and students to become involved in a 67-minute fitness challenge to be held over a seven-day period, commencing on 18 July 2021. These kilometres can be completed by running, walking, swimming or on a bicycle (no vehicles permitted).

These activities may be completed at any location, at any time from 18 to 25 July 2021 (terminating at midnight on 25 July). This ensures that social distancing protocols are adhered to, since each individual is completing the challenge on their own.

Participants will be required to provide relevant proof of the distance completed, as well as the date and time interval, by either submitting a picture of the treadmill screen, sharing the progress they logged by using a mobile app such as Strata, pictures of the number of steps completed, etc. (Send this via email to Reabetswe Parkies at Parkiesrg@ufs.ac.za upon completion – at the latest by 08:00 on 26 July 2021.)

Raising funds

To raise funds, each department in the faculty is requested to consider sponsoring a specific amount per kilometre completed by their staff and students. It is recommended that each department consider its available budget for this purpose and that the total departmental contribution should be capped at a specific amount to ensure that departments are not faced with open-ended liabilities. We have sought and obtained approval from the Department of Finance for the use of UFS funds in this manner. To this end, for example, the School of Accountancy has pledged to contribute R10 per kilometre completed, capped at a maximum contribution of R6 700.

To encourage healthy competition and to increase the amount raised, departments will be encouraged to compete against each other and attempt to complete the most kilometres. Each department will donate their pledges to the charity of their choice. In support of this noble cause, the Dean’s office has pledged a donation of R6 700 to the winning academic department, to be added to the department’s donation to the charity.

We believe this is a very good marketing initiative, as well as an opportunity for the faculty to illustrate its commitment to social investment and community engagement. It is also likely to contribute to improving the morale of the staff in the faculty. The UFS Community Engagement office has further indicated that it would like to arrange a radio interview to promote this event – to this end, we can raise awareness and place the spotlight on a worthy cause.

Read More: EMS Mandela Day Fitness Challenge 2021

News Archive

Discovery in Scorpius constellation may signify clean energy for Earth

2017-01-23

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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