Robots won’t replace doctors any day soon, but they can already help medical professionals do amazing things. This month, Horizon looks at how robots will someday perform remote physical and ultrasound examinations so doctors can make a diagnosis from a distance, and medical avatars for elderly people that help them stay fit and safe. Plus, we see how computer games could make young people lead healthier lifestyles and how to give self-help apps more scientific merit.
Half of European adults are either overweight or obese. Many turn to self-help apps as a means to burn excess fat, but despite hundreds of digital tools available very few help maintain a slimmer waistline and few are based on tried and tested science.
Dumped waste, from used nappies to industrial by-products, have long wound up in landfills and can take hundreds of years to decay. In October we speak to the scientists figuring out how to keep such items in use to reduce rubbish and create a so-called circular economy. We learn about new efforts to mine industrial waste for the rare metals that go into making aircraft parts, pacemakers and bicycle gears, and find out about the culture shift needed to develop a zero-waste society. We also speak to the researchers building a biorefinery to turn soiled nappies into fertilisers and raw materials, and look at whether seaweed could become the next plastic.
The model of our universe as expanding at an accelerated rate has given rise to theoretical constructs such as dark energy and dark matter, which scientists believe could make up 95% of the universe. In September, Horizon takes a deeper look at what we really know about the expanding universe. We speak to Prof. Subir Sarkar, who believes that the Nobel-winning discovery that universe expansion acceleration could be a fluke, and the scientists who are trying to answer the question by allowing us to better measure the expansion rate. We also look at the significance of accurately measuring gravity in deep space, and what dark matter haloes can tell us about the existence of dark energy.
Bill Gates and the European Commission have launched a €100 million investment fund designed to bring radical clean energy technologies more quickly to market in order to promote energy efficiency and cut greenhouse gas emissions.
Hydrogen can be used to power cars, supply electricity and heat homes, all with zero carbon emissions. The snag is that the vast majority of hydrogen itself is derived from fossil fuels – a fact that scientists are now hoping to change. They plan to clean up production to kickstart a dedicated economy – something that has already found small-scale success in Scotland’s Orkney Islands.
Europe's leadership 'more important than ever', says Gates.
The goal is to remove reliance on fossil fuels.
Tracking people’s daily and lifetime movements will determine link between environment and mental health, says Dr Marco Helbich.