Lightsabers from Star Wars aren't just "an elegant weapon, from a more civilised age"—there is science behind the science fiction. Chemist Alex Baker explored the science of a galaxy far, far away. Watch the lecture here: youtube.com/watch?v=zvyW-6MMDjM | Royal Institution of Great Britain

It's not just cool, it's rocket science 🚀 Nanoparticles of iron in a medium form a ferrofluid: magnetic liquid. Our new mini-documentary uncovers how Michael Faraday investigated nanoparticles over 100 years before the start of interest in nanotechnology. Watch here: youtube.com/watch?v=NFwknJClXS0 | Royal Institution of Great Britain

Why do Jubilee line trains on the London Underground make that distinctive sound? 🚇 We couldn't resist looking into the science of our local Tube line. | Royal Institution of Great Britain