Dive in to the fascinating world of science with Tomorrow Today. Your weekly dose of science knowledge. A show for everyone who's curious -- about our cosmos and how it works.
https://www.dw.com?maca=en-podcast_tomorrow-today-3524-xml-mrss
Research power
Almost every battery in the world contains lithium, a rare metal that harms the environment. Are there alternatives? Sodium or magnesium are in plentiful supply, and magnesium can provide more energy than lithium.