Research and society

Vertical farming is booming, and above all in an urban context, since this method requires less space in order to grow sufficient food for a large number of people. Vertical farming is an agricultural concept where crops are grown in a tall greenhouse, in vertically stacked layers. The plants are not planted in earth; instead, they are cultivated in nutrient-enriched water. Artificial light is needed to ensure that the plants receive enough light in order to grow. But which sort of light gives the best result? This is the focus of one of the studies by a team of bio-engineers from Ghent University.

Change the direction of light without a mirror? Separating a light source into different colors? Or discover why the sky is blue, the sun yellow and the clouds white? At the time of the Ghent Light Festival, Professor Philippe Smet explains how you can play with light yourself!

Professor Philippe Smet of Ghent University (Faculty of Science, Department of Solid-State Sciences) has been researching light for 20 years. So, he is the man to explain exactly what light is.

A simple question, but one with a not so simple answer. Or, to be precise, no single answer. To a physicist, light has a very different meaning to, say, a philosopher. Three scientists shine their own light on light.

In Glasgow, from 31 October to 12 November, the 26th Climate Conference will take place. For twelve days, 196 countries will be examining – yet again - climate change and how we should tackle it. How unequivocal are scientists on the climate issue? And to what extent does the political agenda take climate science into account?

Seventy per cent of the earth is covered with water, and yet we know only a fraction of what all that water can actually do for us. The blue economy continues to discover amazing resources and solutions that lie hidden underneath the surface of the sea.

The equal opportunities policy for education is currently under fire: does it really provide equal opportunities? Doesn’t it lower the bar in education? Dirk Van Damme, Head of the Innovation and Measuring Progress Division at the OECD and Ghent University alumnus professor helped to formulate it. Now, although still behind it in principle, he is taking a critical look at its drawbacks. Ghent University professor Piet Van Avermaet, Director of the Steunpunt Diversiteit en Leren (Learning and Diversity Support Centre) defends the choices made, despite the disappointing outcomes.

The medical field is on the verge of a revolution, all thanks to... light. Medical devices will soon become so small and inexpensive that they will become part of everyday equipment. The driving force behind this technological revolution is photonics. ‘It is the fastest growing ‘‘enabling” technology we know’, says Roel Baets, head of the Photonics Research Group.

Public debate about decolonisation has become extremely lively, especially in the aftermath of the Black Lives Matter protests. But the story is still far from over. The call for decolonisation is becoming increasingly louder, and raises important questions about far more than the symbolic discussions focussing upon folkloric characters such as 'Zwarte Piet'. What about reading lists? Museums? The way in which we teach?

You may be reading this article because it appeared on your social media timeline. If that is indeed the case, then take a moment to ask yourself whether you have recently been reading other articles on the subject of algorithms. And if the answer to that question is also yes, then the fact that you are reading this shows that the algorithm is working as intended.

At the moment, it seems that a real boom in conspiracy theories has been unleashed. How is it possible that a completely new virus emerged from nowhere, causing so many deaths? Many believe that it has to be part of a wider conspiracy. The internet continues to be swamped with all sorts of conspiracy theories. Which raises the question: why do so many people believe in the most improbable stories, and why do we have a problem with that?