Latest News Archive

Please select Category, Year, and then Month to display items
Years
2017 2018 2019 2020
Previous Archive
03 October 2018 | Story UFS | Photo Varsity Sports
First ever netball final in Bloemfontein
The Kovsies will be aiming to lift the Varsity Netball trophy in front of their home supporters on Monday when they face Tuks in the final in the Callie Human Centre.

The netball team of the University of the Free State, once again after five years, earned themselves the right to stage a final in the Varsity Netball competition. The two-time champion, the Dream Team, qualified for the final after topping the log and then wiping the floor with the Maties on Monday (1 October 2018) in the semi-final. The score was 56-45. 

They will come up against Tuks in the Callie Human Centre on the UFS Bloemfontein Campus for the final tonight. The match will get underway at 18:45.

The team won the very first two years of the competition in 2013 and 2014. On both occasions, they had to play away from home – in 2013 against the Pukke in Potchefstroom and in 2014 against Tuks in Pretoria. 

It will be the fourth meeting between the Kovsies and Tuks within three months. The Free State students won the group fixture in August by 68-43, but Tuks had to do without a number of their star players. At the University Sport South Africa tournament in Bloemfontein during July, Tuks triumphed twice, winning the final by 48-30.

Apart from the winners’ medals, an award will be handed to the tournament’s top player. Centre Khanyisa Chawane is one of three finalists. The winner gets chosen through public votes.

Dream Team players have won the prize four of the five times. Ané Botha was crowned in 2013, Karla Pretorius in 2014 and 2015, and last year it was the turn of current Kovsie player, Khomotso Mamburu.

To vote for Chawane, click here hover your mouse over the like button and choose the heart emoticon. Voting is closing on 5 October and the winner will be announced after the final.

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.

 

 

We use cookies to make interactions with our websites and services easy and meaningful. To better understand how they are used, read more about the UFS cookie policy. By continuing to use this site you are giving us your consent to do this.

Accept