BLOEMFONTEIN – A learner from Bloemfontein High School are one of three South Africans that will travel to Turkey for the International Mathematics, Science and Engineering Fair (IMSEF).

The three South African young scientists researching rocket propulsion systems, climate-related fisheries conservation, and advanced mathematical modelling are set to represent the country at the Science Fair in Izmir in Turkey from 1 to 6 June.

The delegation includes Rorisang Mohau Mohlobuli, a Grade 9 learner at Bloemfontein High School, Connor Kinnes, a Grade 11 learner at Elkanah House High School in Cape Town and Joshua Danilatos,  a Grade 11 learner at Graeme College in Makhanda. The delegation will be led by Eskom Expo Ekurhuleni Regional Science Fair Director, Palesa Selepe.

Rorisang, a silver medal recipient at last year’s Eskom Expo International Science Fair (ISF), will exhibit the project “Quantifying Goldbach: An Analysis of Prime Pairs”. The research developed a baseline estimator using logarithmic functions derived from the Prime Number Theorem and refined the model through the addition of a correction factor to improve predictive accuracy.

The project demonstrated how mathematical refinement and analytical modelling can contribute to broader investigations in analytic number theory. His project was selected for its innovative mathematical modelling and refined approach to investigating patterns linked to Goldbach’s Conjecture.

Connor, a bronze medal winner at last year’s ISF, will present his project titled “Project Pathfinder: Design and Optimisation of a Static Test Rocket Motor”. His research was selected for its innovative engineering design, iterative optimisation process and promising application in small-scale propulsion system development. Through repeated testing and refinement, Connor demonstrated significant improvements in rocket motor efficiency, structural reliability and material utilisation. His project demonstrated how data-driven engineering refinement can produce affordable and scalable propulsion solutions with improved performance.

Joshua, a silver medal recipient at last year’s ISF, will showcase his project titled “Catch-and-Release in a Warming Climate: Effects on Reflex Impairment and Stress in Rhabdosargus holubi”. The study investigated the impact of temperature on physical impairment and physiological stress in Cape stumpnose fish following simulated catch-and-release events. The findings provided evidence that elevated water temperatures increase reflex impairment in fish after catch-and-release, highlighting a growing ecological concern in warming aquatic environments. His research was selected for its significant contribution to climate-related fisheries research and its relevance to conservation management strategies.

Mologadi Motshele, Acting Chief Executive Officer of the Eskom Development Foundation, said: “The selected projects demonstrate how young South African researchers are developing scalable, data-driven solutions to complex global challenges. These young scientists highlight the calibre of school-level scientific research being conducted in South Africa, while showcasing the opportunities available to learners and educators who engage in scientific inquiry, innovation and problem-solving. Through Eskom’s continued support of STEM education and the Eskom Expo for Young Scientists, we are investing in the development of future scientists, engineers and innovators who will contribute towards South Africa’s economic growth, technological advancement and long-term sustainability.”

Eskom Expo’s District Expo’s are now underway in all provinces and learners grades 4 to 12 and Level 2 to 4 students for Technical and Vocational Educational and Training (TVET) can now register their projects online on www.exposcience.co.za