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26 March 2018 Photo Pixabay
Back to the drawing board to save water
We’ve managed to damage nature’s ‘filter’ with air, ocean, and soil pollution, and by destroying wetlands.

Dr Cindé Greyling, a University of the Free State (UFS) DiMTEC (Disaster Management Training and Education Centre for Africa) alumni, studied drought mitigation with a strong focus on communicating important water-saving information. 

Can we run out of water?
Yes, and no, says Dr Greyling. “To our knowledge, water is not ‘leaking’ through our atmosphere. We have what we have, but that doesn’t mean we will have enough clean, fresh water forever. Nature has a magnificent way of purifying water through the water cycle. We, on the other hand, must use a lot of money and energy to purify water. Also, we’ve managed to damage nature’s ‘filter’ with air, ocean, and soil pollution, and by destroying wetlands. The other problem is a simple supply and demand scenario. More people will need more water, but not only that, population growth calls for industry development and increased food supplies – all of which require more water.”    

A war over water
Besides some Hollywood impressions, it is difficult to imagine a war over water, but it is possible. “Some experts are convinced that we are heading there, and others claim that such tensions already exist. Personally, I don’t favour these kinds of shock tactics (or truths) – social research has shown us that it rarely leads to behavioural changes. We can learn a lot from what was has been done in Cape Town. Although we all think people were bombarded with ‘Day-Zero’-scares, they were actually encouraged to adapt their behaviour with a communication campaign that hardly ever used the term ‘Day-Zero’. This approach mobilised citizens to reach record lows of water usage.” 

Adapt a new normal
Dr Greyling encourages the “new normal” set in motion by Capetonians. “Water consciousness is needed, even when the rain comes again. We’ve taken water for granted for too long. As consumers, we have the power to turn this situation around – drop for drop. Be aware about the amount of water you use, how you use it, and for what. Keep in mind that any wastage and pollution (of ‘dry’ things) also wastes and pollutes water. Generally, we need to behave better regarding consumption.”  

News Archive

Apparatus to register the eye fixations of computer users
2006-01-23

Die Departement Rekenaarwetenskap en Informatika aan die Universiteit van die Vrystaat (UV) het 'n gesofistikeerde apparaat ter waarde van R230 000,00 in gebruik geneem waarmee die oogfiksasies van rekenaargebruikers geregistreer kan word.  Die UV is die eerste tersiêre instelling in Afrika wat met 'n hierdie apparaat, genaamd die Eye Tracker, kan spog. 

 

Die Eye Tracker bepaal die presiese punt op die rekenaarskerm waarna 'n gebruiker kyk en sal aangewend word om gebruikerinteraksie met rekenaarprogrammatuur te bestudeer.  Terugvoer aan rekenaarprogramontwikkelaars sal verseker dat programme gebruikersvriendelik is sodat gebruikers nie noodsaaklike interaksie-elemente miskyk nie.  Die Eye Tracker sal ook onder meer deur die UV se Departement Mikrobiese, Biochemiese & Voedselbiotegnologie  gebruik word om te bepaal of studente na die korrekte data in grafieke kyk.

Van links:  Prof. Janse Tolmie (Voorsitter:  Departement  Rekenaar-wetenskap en Informatika aan die UV), me Anne Jansen (van Tobii Technologies in Swede, verskaffer van die Eye Tracker) en prof. Pieter Blignaut (dosent aan die UV se Departement Departement Rekenaarwetenskap en Informatika). Foto: Lacea Loader

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