Detecting diseases, removing CO2 from chemicals and uncovering the composition of the earth’s core: diamonds have many more uses than just decorating our hands. This January, Horizon talks to the researchers who are unearthing new ways of using one of nature’s most treasured materials.
New experiments that crush material between two diamonds to simulate the extraordinarily high temperatures and pressures found in the earth's interior are providing answers to the age-old questions of what our planet is made of, and where its ingredients came from.
Every minute, satellites and sensors collect enormous amounts of data about the world around us – from temperature to pollution and forest cover to soil quality. This month, Horizon looks into the technologies behind Earth observation and how we can make best use of the vast amounts of information produced. We find out how measurements taken by people with smartphones on the ground can feed into local datasets and how the minituarisation of satellites is creating opportunities for start-ups to enter the Earth observation market. We also discover how measurements are being used to protect ecosystems and what historical data can tell us about extreme weather such as hurricanes and droughts.
The world’s oceans are overfished, polluted and – for something that makes up 70% of the Earth’s surface – still little understood. This month, Horizon looks at some of the science that could help us take better care of our oceans, from robots trash collectors out at sea to finding ways to track the plastic that enters our waters. Plus, we look at how climate change is affecting plans for sustainable aquaculture, tech that can help divers reduce the cost of their dives by more than 50%, and the challenges facing research in the Black Sea.
The big data explosion, which allows scientists to analyse factors such as people’s lifestyles, genes and medical records to develop personalised treatments for conditions, has so far mostly benefitted rare diseases with simple causes. But now, complex problems such as cardiovascular disease and dementia are getting the big data treatment.
An analysis of a newly cleaned-up dataset tracking Europe’s air pollution has revealed that nitrogen dioxide levels are on a steeper downward trend than previously thought, according to Dr Folkert Boersma from the Royal Netherlands Meteorological Institute, who says that ensuring the quality of Earth observation data can reveal new insights into climate change.
Heart health and dementia care could be improved with algorithms.
Quality-checking satellite data can reveal new insights.
Co-author of Stephen Hawking's final paper talks about how their work goes beyond Einstein.