Watch (and listen) as a Swedish mathematician skates on thin ice, creating a beautiful acoustic experience https://on.natgeo.com/2NBLnos pic.twitter.com/bIMegeucZw

Watch (and listen) as a Swedish mathematician skates on thin ice, creating a beautiful acoustic experience https://on.natgeo.com/2NBLnos  pic.twitter.com/bIMegeucZw

https://twitter.com/NatGeoTravel/status/1043681914211717120