This month, Horizon explores the weird and wonderful world of 2D materials. We talk to researchers revving up for a nano car race on a track the size of a flu virus, and others who are splicing atom-thick layers to create materials with on-demand properties. We find out how one scientist is bending and stretching 2D materials to create ultra-small sensors, and discover some of the other potential applications creating a buzz, including energy storage and high-power computing.
Bending and stretching 2D materials to change their properties could lead to ultra-small sensors that can help us understand how gravity works at the microscopic scale, according to Professor Kirill Bolotin from Freie Universität Berlin, Germany, who leads the EU-funded Strained2DMaterials project to uncover what happens to 2D materials under strain.
It's been 15 years since the euro came into circulation and to mark the occasion Horizon is looking at what the future could have in store for finance. We talk to one economist who says the way to avoid another crisis is to keep banks small and boring, and we explore the effect of alternative local currencies on supporting small businesses. We also delve into some of the technology that could enable us to move to a cashless society, and we look at the growth of the so-called sharing economy, in which people share access to resources.
This December marks one year on from the Paris agreement, where world governments agreed to keep global warming to within 2 degrees Celsius of the average pre-industrial temperature. To mark the occasion, Horizon takes stock of the situation and examines the challenges ahead. We speak to scientists who are mapping a pathway for governments to cut back on emissions, we host a debate on steel - one of Europe’s most polluting industries, and we look the progress of carbon capture and storage. We also interview Professor Hans Joachim Schellnhuber, founder of the Potsdam Institute in Germany, who was the first to propose that 2 degrees should be set as a limit for global warming.
In the province of Limburg, in northeastern Belgium, residents earn points by helping out in the community which they can spend on cinema tickets or trips to the local swimming pool.
The increase is partly driven by climate challenges.
Neuroimaging techniques are helping us read the pictures in our heads.
There is unlimited kinetic energy all around us and harnessing it could change the way we interact with the world, says Dr Gonzalo Murillo.