How do metal detectors work?
You know the drill: hand luggage in the X-ray thingy, put coins-phone-keys-bracelets-watch-necklace in the tray and ready for the metal detector. How the eff does it know I forgot to take off my stupid belt?!

You know the drill: hand luggage in the X-ray thingy, put coins-phone-keys-bracelets-watch-necklace in the tray and ready for the metal detector. How the eff does it know I forgot to take off my stupid belt?!

The idea behind this interesting technology Japan is testing to clean up some space junk. Continue reading Fishing for space junk
So it wasn’t gravitational waves after all: the Nobel prize for physics went to David Thouless, Duncan Haldane and Michael Kosterlitz. That’s the easy part. The motivation needs a little unpacking: For theoretical discoveries of topological phase transitions and topological phases of matter. We all know and love a few phases of matter: solid, liquid and gas (maybe plasma if you want to get kinky). … Continue reading Theoretical donuts and quantum computers: the Nobel prize 2016