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15 June 2022 | Story Leonie Bolleurs | Photo Leonie Bolleurs
from the left: Dieter Schwab and Alex Reither from Sky-Skan, and Prof Matie Hoffman, Barry Crous (Instrumentation), and Pat van Heerden (Department of Physics) from the UFS
During the installation of the new computer and projector equipment at the Naval Hill Planetarium, were from the left: Dieter Schwab and Alex Reither from Sky-Skan, and Prof Matie Hoffman, Barry Crous (Instrumentation), and Pat van Heerden (Department of Physics) from the UFS.

The Naval Hill Planetarium at the Centre for Earth and Space on Naval Hill was inaugurated on 1 November 2013. It was the first digital planetarium in Africa south of the Sahara. 

The Department of Physics at the University of the Free State (UFS) is responsible for the Naval Hill Planetarium (formerly the Lamont-Hussey Observatory). The department uses the planetarium to educate and inform citizens about the natural sciences. The planetarium, together with the Boyden Observatory, is also important for the display and communication of South Africa’s astronomical heritage.

The planetarium system was recently upgraded in a project that cost R6 million. According to Prof Matie Hoffman from the Department of Physics, it was time to upgrade the computers and graphic cards, and to replace the lamp projectors with laser projectors.

Funding for the state-of-the-art equipment came from the Faculty of Natural and Agricultural Sciences and the Information and Communication Technology Services (ICT Services) at the university. Businesses in Bloemfontein – First Technology and Raubex Construction – also contributed to the project. 

Presenting programmes more often

Planetarium specialists Dieter Schwab and Alex Reither from Sky-Skan Europe, based in Germany, installed the new equipment over a period of two weeks.

Prof Hoffman says the new equipment will enhance the experience of people visiting the planetarium for a close encounter with the wonders of the universe to deepen their appreciation of science and astronomy.

“Besides a clearer image with better colour, the new projectors will also be more economical to operate. This means we will be able to offer programmes at the planetarium more often,” he says. 

The upgrades also include new software. Prof Hoffman explains that the software will enable more sophisticated presentations and open the door to the use of the planetarium for higher level visualisation of scientific data where any large data sets with many variables are involved, such as climate science, astrophysics, and cosmology. 

Offering an incredible experience

After completion of the installation, a period of two weeks will be spent on training to master the use of the new equipment and the software. The public can expect the first show with the new equipment at the end of June. 

“I am most looking forward to the planetarium creating an incredible experience – better than in the past – for the public and increasing everyone's admiration and understanding of the universe. I also believe the planetarium is an excellent facility to improve students' skills in science communication, and it provides these students the opportunity to share their knowledge with the public,” concludes Prof Hoffman. 

News Archive

Emma Sadleir talks about social media etiquette
2016-05-18

Description: Emma Sadlier Tags: Emma Sadlier

Emma Sadleir
Photo: Supplied

“We have all become celebrities, we have become social figures because of our power to publish information. We have all become brands, and we need to protect our brand. Digital content is sometimes dangerous content,” said Sadleir.

On 11 May 2016, the University of the Free State, in collaboration with the Postgraduate School, hosted, Emma Sadleir, a leading social media expert, in the Equitas Auditorium on the Bloemfontein Campus. She is an admitted advocate, specialising in social media law.  Dr Henriette van den Berg, Director of the Postgraduate School, described Sadleir’s presentation as a privilege for all the staff and students who attended.

Sadleir said that there are two important rules that staff and students of an institution should try to follow. The first is not to bring the name of the institution into disrepute; and the second is not to breach the goodwill of the institution or, in other words, not to bite the hand that feeds you.

“The common law, even if there is no policy, is that anything that brings the company into disrepute can lead to disciplinary consequences up to termination,” said Sadleir.

Sadleir focused on hate speech and free speech, stating that free speech is a right that is entrenched in the constitution, but, like every other right, it has limitations. She mentioned Penny Sparrow, Matt Theunissen, Velaphi Khumalo, and Judge Mabel Jansen, all of whom have been lambasted by the public over their racist posts on social media. Sadleir stressed that, even on social media, content has to be within the confines of the law, and people must remember our rights are not absolute. We have a lot of freedoms, but no one cannot disseminate hate speech.

“Would you publish whatever you thinking on a billboard, close to a busy highway with your name, picture and employers details or the institution you studying at? If you have no grounds to justify the comment, do not post it,” warned Sadlier.  

According to the South African Bill of Rights, everyone has the right to privacy, but an expectation of privacy has to be enforced. She said people over-document their lives on social media, decreasing your right to privacy drastically. “It is like CCTV footage of your life. It is simple, the more you take care of your privacy, the more you have,” said Sadleir.

Sadleir said it was important for Facebook users to have privacy settings where they can review posts where they are tagged. According to Sadleir, managing your reputation is not only limited to what you post about yourself but also managing what others post about you.

She cited a 2013 case in the Pretoria High Court in which a new wife wrote a scandalous Facebook post about her husband’s ex-wife, tagging the husband in the post. The courts found both the new wife and the husband guilty of defamation.

“If you have been tagged in something but have not been online and seen the content, you are then an innocent disseminator. The moment you are aware of the post you are liable for the content,” said Sadleir.

“It takes 20 years to build a reputation and five minutes to ruin it. If you think about that, you'll do things differently,” Sadleir said, concluding her presentation with the quotation from Warren Buffet.

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