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07 April 2022 | Story By Jóhann Thormählen | Photo ASEM Engage, Hannes Naude
Shimlas
The fullback Litha Nkula scored one of four tries for the Shimlas in wet conditions against the University of Pretoria.

They did have a more conservative plan in the soaking wet conditions, but it was the attacking style of the University of the Free State (UFS) Shimlas that shone through.

According to André Tredoux, the Shimlas Head Coach, his players followed their attacking instinct against the University of Pretoria (UP) on Monday to book a spot in the Varsity Cup semi-finals.

And that is also why the UFS is the team that scored the most tries in the tournament.

The team defeated UP 26-15 in trying conditions at Shimla Park and will finish among the top four. This, even though the Shimlas are still playing the Madibaz (Nelson Mandela University) in Gqeberha in their last league encounter on Monday (11 April 2022).

The UFS is at the top of the log (32 points) and will play in its first semi-final since 2019.

Anxious moments

Many would say an expansive approach is risky when it rains, but the Shimlas proved them wrong this week.

“Our vision for the team is to play according to our DNA (attacking rugby),” says Tredoux.

He admits that the wet conditions made them tweak this a bit: “But we still encouraged the players to attack the space that our opponents gave us.”

“Our execution and intensity in the first 34 minutes were superb.”

Six minutes before half-time, his side was leading 19-3 against UP when the game was stopped due to impending lightning. It could have been a bad result if play had not continued, as 40 minutes was needed for a result.

“After the good start, we were quite anxious. We knew that we at least had to play until half-time to get a result.”

Outscoring opponents

It is their philosophy of playing without fear and scoring tries that has helped the Shimlas outscore other Varsity Cup teams.

The UFS scored 48 tries in eight rounds, with the University of Cape Town Ikeys second on 38 tries.

But the Kovsies are also solid on defence, as they have conceded only 21 tries. Only UP (20) conceded less.

There is, however, not too much talk in the Shimla camp about a semi-final yet.

“We are very happy with where we are on the log at the moment.

“We will continue working hard and playing good rugby. But we only focus on the next match,” says Tredoux.

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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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