Quantum computers pose a big threat to the security of modern communications, deciphering cryptographic codes that would take regular computers forever to crack. But drawing on the properties of quantum behaviour could also provide a route to truly secure cryptography.
European scientists have spent 100 years developing the field of quantum mechanics – a branch of physics dealing with the atomic and subatomic scale – and we need to reap the profits now that quantum computers and other technologies are becoming a reality, according to Dr Thomas Monz from the University of Innsbruck, Austria.
Staring at rows of numbers or formulas on a page can be off-putting for many children studying mathematics or science in school. But music, drawing and even body movement are providing promising new ways of teaching complex subjects to youngsters.
Online voting is often considered a way to improve voter turnout and security. But according to Dr Steve Kremer of the French Institute for Research in Computer Science and Automation, computer scientists have got a long way to go before they make it a viable alternative to pencils and paper.
Next-generation wheelchairs could incorporate brain-controlled robotic arms and rentable add-on motors in order to help people with disabilities more easily carry out daily tasks or get around a city.
Few technologies have the potential to disrupt old institutions as much as blockchain – a system that maintains records on huge networks of individual computers. As with any new technology, it could be used for social good – such as supporting people who are priced-out of the current bank accounts – but the big challenge is how to limit its unintended consequences.
Robust, intelligent robots that react to their surroundings are being developed to work in situations that are too dangerous for humans, such as cleaning up Europe’s decades-old radioactive waste or helping during a nuclear emergency.
Modern communications technology means one can find anything, anywhere around the world, on the internet and via mobile phones. But people still live in communities and need information that is relevant to them.
The eruption of a volcano can have devastating consequences – killing people and destroying livelihoods, as well as releasing vast amounts of ash into the sky that disrupts air travel and alters the climate. Knowing what goes on underground, however, would facilitate better warnings for when an eruption will occur – and help save lives while keeping damage to a minimum.
Figuring out how plants defend against pests could teach us how to better protect crops.
The number of parasites is increasing with rising sea temperatures.
Prof. J Murray Roberts is carrying out a health check on the Atlantic.