Stefan Grimme is a theoretical chemist. He develops computer programs to model the structure of complex molecules and represent them visually. The methods and programs he has developed have quickly become a standard.
The aviation industry needs to lower fuel consumption and emissions. So what might ecofriendly planes of the future look like? Also on the show: using lightning to break up concrete; aggressive motorists; and the welfare of fish in captivity.
Conditions for pigs, cattle and chickens kept in farms is a controversial issue. But what about fish? A project in Zurich is looking at how to optimize the wellbeing of animals in the aquaculture industry.
Recycling concrete is hard. One option is to use artificial lightning to break it up into its component parts. Can the method be scaled up? It can also be used to access valuable resources in other materials. It's a bit like unbaking a cake.
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