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27 January 2018 Photo Supplied
Physics excels in Afrikaans Academy for Science and Art symposium
UFS postgraduate students in the Department of Physics attended the Student Symposium of the Afrikaans Academy for Science and Art. From the left are Izak van der Westhuizen (PhD) and Hélène Szegedi (MSc), who both came in second place in their respective sessions. On the right of the banner are Dina Oosthuizen (PhD) and Lucas Erasmus (MSc),who claimed first place in their respective sessions.

Every year postgraduate students from all universities and universities of technology in the country are invited to participate in the student symposium of the Afrikaans Academy for Science and Art.

Honours, master's, and doctoral students from different universities in different scientific fields, including chemistry, physics, computer science, engineering, geography, medicine, etc. participated in the symposium. From the Department of Physics at the University of the Free State (UFS), Dina Oosthuizen (PhD) won a first prize in session 1, Hélène Szegedi (MSc) won second prize in session 2, where Lucas Erasmus (MSc) claimed first place and Izak van der Westhuizen (PhD) took second place in session 3.

'We love what we do'

Students from the UFS do incredibly well each year at this symposium. “These achievements speak of the excellent education and training we receive, especially in the department. Physics students not only have lecturers and supervisors who are well-respected in their own research fields but have access to world-class instruments in our physics laboratories. We also love what we do and see it as a privilege to share our work.

“The symposium is also an opportunity to gain valuable experience in presenting our own research as well as getting exposure to various research topics, methods and scientific disciplines,” said Hélène Szegedi, who is a junior lecturer in the Department of Physics

 

"We love what we do
and see it as a privilege
to share our work."
Hélène Szegedi
Lecturer in the
Department of Physics


Symposium unique on many levels



Although every participant has to present in Afrikaans, it is not only Afrikaans-speaking students who participate in the symposium. Szegedi said: “The language requirement for the symposium does, however, create the opportunity to develop Afrikaans further as a science language, and we sometimes have to coin new words or terms to describe our research, making this symposium unique and beneficial on many levels.”

Read a preview of the research presentation here.

News Archive

Scientists discover a water reservoir beneath the Free State
2009-12-09

Dr Holger Sommer

The Mantle Research Group Bloemfontein (MRGB), under the leadership of Dr Holger Sommer, a senior lecturer in the Department of Geology at the University of the Free State (UFS), has discovered an enormous water reservoir 160 km beneath the Free State.

This discovery, according to Dr Sommer, is the first of its kind in South Africa after he had previously made a similar finding in Colorado, USA.

However, this water cannot be used for human consumption. “It is not frozen water; it is not molecular water; it is not fresh water; it is not salty water; it is OH – water which is sitting in the crystal lattice,” he said.

He said the reservoir was comparable in size to Lake Victoria in Tanzania.
The researchers collected eclogites from the Roberts Victor (Rovic) Mine close to the town of Boshof, south-west of the Free State, for their study.

“The Rovic eclogites are rocks which represent former oceanic crust transported into the earth’s interior by complex plate tectonic processes about 2.0 billion years ago,” explained Dr Sommer.

“These rocks were finally carried back to the earth’s surface by volcanic (kimberlite) eruptions around 130 million years ago. Eclogitic rocks are therefore a window into the Earth’s interior.”

The question from the beginning for all MRGB scientists was: Is there water inside these rocks in such depth, and if so, where is it located?

To answer this question, Dr Sommer and his research fellows separated single mineral grains from eclogite samples and prepared about 100 micrometer (0,1 mm) thick rock sections. Afterwards, specific particle accelerator (Synchrotron) measurements were carried out in the city of Karlsruhe in Germany.

“And indeed, the MRGB found water inside the studied rocks from the Roberts Victor Mine,” he said. “The water was located in defect structures in crystal lattices and along boundaries between single mineral grains.”

“The occurrence of water at such depth would give first evidence that all water of the oceans could be stored five to ten times in the earth’s mantle.”
The study was conducted about a year ago.
 

Media Release
Issued by: Mangaliso Radebe
Assistant Director: Media Liaison
Tel: 051 401 2828
Cell: 078 460 3320
E-mail: radebemt.stg@ufs.ac.za
4 December 2009

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