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22 July 2025 | Story Nontobeko Nxumalo | Photo Supplied
Mandela Day
The DiMTEC team marked Mandela Day by planting indigenous trees on campus, promoting sustainability and community resilience through nature-based solutions.

The University of the Free State’s (UFS) Centre for Disaster Management Training and Education Centre (DiMTEC) commemorated Nelson Mandela International Day on 18 July by planting trees that help embed nature-based solutions at the heart of disaster risk reduction and climate change adaptation.

“It’s a simple act, yet deeply symbolic – a commitment to sustainability, climate resilience, and future generations,” said Dr Tlou Raphela-Masuku, a Senior Lecturer at DiMTEC. “Nature-based solutions, such as planting indigenous trees, are not just theoretical strategies; they are practical tools to reduce disaster risk, restore ecosystems, and build community resilience.” 

One of the trees planted, the indigenous, resilient Wild Olive (Olea europaea subsp. africana), known locally as Mohlware, embodies the drive to place nature-based solutions at the forefront of disaster risk reduction. “This tree is drought-tolerant and well-adapted to Bloemfontein’s semi-arid climate,” Dr Raphela-Masuku explained. “It stabilises soil, prevents erosion, supports biodiversity, and cools urban spaces. Its thick canopy shelters birds and small mammals, while its deep roots nourish and protect the earth. In a warming world, every Wild Olive planted is a small act of resistance against climate change.” 

 

Collaborative programme

Dr Raphela-Masuku said the tree-planting programme, a collaboration with UFS Protection Services and University Estates, ties directly into the principles the centre teaches in its Master's of Disaster Management module Ecosystem-Based Disaster Risk Reduction (ECO-DRR). 

“From the viewpoint of the African Union’s Science and Technology Advisory Group, it is befitting that as part of the work dedicated to disaster risk reduction initiatives in the African continent, this day is a reminder that we promote community service, resilience and social justice in the ‘Africa we want’. Furthermore, Mandela Day activities align with the Sendai Framework for Disaster Risk Reduction (SFDRR)’s priorities of understanding risks and strengthening disaster governance at all levels,” remarked Prof Alice Ncube, an Associate Professor at DiMTEC.

She added that, “In a city like Bloemfontein, which is not exempt from drought accelerating frequently and temperatures rising yearly, choosing to plant climate-resilient, indigenous species isn’t merely wise, it’s necessary. Trees like the Wild Olive don’t just provide shade and beauty; they help cool urban environments, support biodiversity, and protect our university community from floods and storms. They represent a forward-thinking investment in a sustainable, climate-adapted future. Mandela Day reminds us that service should be continuous, not confined to a single day. A tree planted today will outlive us, offering shade, shelter, and hope to those who come after. As Mandela himself said, ‘The true meaning of life is to plant trees under whose shade you do not expect to sit.’”

 

Commitment to change

Mandela Day also fits in with the UFS’ Vision 130 strategic intent. It is a day that reminds us that everyone has the power to make a difference. In the spirit of Madiba’s legacy, we can commit to fostering social justice, human dignity, and sustainable development through academic excellence and meaningful community engagement. In the face of climate change, biodiversity loss, and environmental degradation, each seed we plant becomes an act of defiance as well as an act of hope.

Prof Samuel Adelabu, Vice-Dean: Postgraduate and Research in the Faculty of Natural and Agricultural Sciences, applauded the team’s efforts. “We are planting trees that represent sustainability, things that can stay for long. I believe we are all practising sustainability in this initiative we are doing today to show that the university, as well as the faculties, are in line with sustainability.” 

News Archive

Einstein's gravitational waves as creative as Bach's music, says UFS physicist
2016-02-19

Description: Gravitational waves  Tags: Gravitational waves

Profile of the gravitational waves of the colliding black holes.

Prof Pieter Meintjes, Affiliated Researcher in the Department of Physics at the University of the Free State, welcomed the work done by the Laser Interferometer Gravitational-Wave Observatory (LIGO) science team.
 
For the first time, researchers from two of the American Ligo centres, in Washington and Louisiana respectively, observed gravitational waves directly, 100 years after Albert Einstein said they existed. "My study field in astrophysics involves relativistic systems. Therefore, Einstein's view of gravity is crucial to me. I consider the theory as the highest form of human creativity - just like the music of JS Bach. Over the past 100 years, the theory has been tested through various experiments and in different ways.
 
“The discovery of gravitational waves was the last hurdle to overcome in making this absolutely unfaltering. I am therefore thrilled by the discovery. It is absolutely astounding to imagine that the equations used to make the predictions about the gravitational-wave emissions when two gravitational whirlpools collide - as discovered on 14 September 2015 by LIGO - are basically Einstein's original equations that were published way back in 1916 - in other words, 100 years ago.
 
“The LIGO detectors have been operational since the early 1990s, but they had to undergo several stages of upgrades before being sensitive enough to make detections. LIGO is currently in its final stage, and is expected to function at optimal sensitivity only within a year or two. To be able to conduct the measurements at this stage is therefore a fantastic achievement, since much more funding will certainly be deposited in the project,” Prof Meintjes says.

Description: Prof Pieter Meintjes Tags: Prof Pieter Meintjes

Prof Pieter Meintjes
Photo: Charl Devenish

The search for gravitational waves by means of the Square Kilometre Array (SKA) is one of the focus points in research by both Prof Meintjes and PhD student, Jacques Maritz. This involves the study of radio signals from pulsars that might show signs of effects by gravitational waves. They are looking for signs of gravitational waves. The gravitational waves discovered and studied in this manner would naturally vary much more slowly than the signal discovered from the two colliding gravitational waves.
 
The discovery will definitely provide renewed impetus to the Square Kilometre Array (SKA) Project to use the dispersion of pulsar signals, and to search for the impact of gravitational waves on signals as they travel through the universe. According to Prof Meintjes, the SKA will definitely contribute fundamentally to the Frontier research, which will provide a good deal of publicity for the UFS and South Africa, if significant contributions are made by local researchers in this field.

Video clip explaining gravitational waves

 

  • The Department of Physics will present a general, non-technical talk concerning the recent detection of gravitational waves by the 2 Laser Interferometer Gravitational Wave Observatories (LIGO):

Wednesday 24 February 2016
11:00-12:00
New lecture auditorium, Department of Physics

 

 

 

 

 

 

 

 

 

 

 

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