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01 January 2018 Photo Charl Devenish
ISG’s Sarah Frank researches impact of historic conflicts on society
Dr Sarah Frank, postdoctoral researcher at the ISG.

History has an interesting connection with society, as we all grow up learning about our country’s history and studying it at school. However, what we learn at school is often a glorified version of events. It can sometimes be challenging for historians to come to grips with the most accurate version of a particular ‘history’. 

Dr Sarah Frank is a postdoctoral research fellow with the International Studies Group (ISG), who fell in love with history at a young age. She says, "I was very lucky to have outstanding history teachers at school who fostered my interest and curiosity." Early on, though, she experienced disappointment. "In school, there was a series of biographies of American leaders and presidents written for children. I remember feeling betrayed when I subsequently learnt that the biographies had not presented a well-balanced narrative. That is when I learnt that history could be debated and interpreted—and it is full of nuances."

Interested in conflict shaping lives

Dr Frank was particularly intrigued by the social and political history of the Second World War (WWII). She describes her interest in this way: "The Second World War looms in popular memory as much as in the historical one. I am interested in how conflict shaped people’s lives during and after the war." Being a speaker of French helped her to focus on the impact of the war on France, and having spent a few years living in West Africa, confronted with the lingering colonial past, she decided to home in on the French empire, with particular attention to colonies, captivity, and the repercussions of war experiences when soldiers returned home. Additionally, she explores the themes of decolonisation, the roots of independence movements, and the lingering ties between the former imperial powers and former colonies.

Although she grew up near Boston, Massachusetts, studied for her master's in Dublin, and has lived in far-flung places such as Guinea (while serving with the Peace Corps) and Dakar, Dr Frank says, "I have lived in a lot of places, but Bloemfontein is definitely one of my favourites!"

“I was very lucky to have outstanding
history teachers at school who
fostered my interest and curiosity.”
Dr Sarah Frank

Colonial POWs her new focus

Currently, Dr Frank is writing a book based on her PhD research, which delved into the experiences of approximately 85 000 soldiers in captivity from across the French Empire, who fought in France from 1939-1940. The Germans decided to racially separate the colonial prisoners of war (CPOWs), taking white prisoners to Germany and leaving the colonial prisoners in camps across occupied France. This created opportunities for colonial prisoners to interact with the French civilians, something which rarely occurred in the strict hierarchical colonial regime. Perhaps surprisingly, considering the racism of both the French and German regimes, Colonial prisoners fared better in captivity in France than their French counterparts did in Germany.

Dr Frank's next project will trace the return of the African soldiers who fought during the Second World War. She seeks to understand what happened to them as well as their families when they returned, and to see if their experience actually impacted the growing independence movements which arose following 
WWII.

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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