John Law posted this impressive video from Antarctica showing how quickly boiling water can freeze when it's thrown into very cold air. Video / John Law
Think it's cold here at the moment?
Spare a thought for those in Antarctica and see exactly what -31C temperature looks like.
MetService has shared a video of one of its former meteorologists, John Law, in the chilly continent.
In a clip that mirrors something Elsa from Disney's Frozen coulddo, Law - decked out in a puffy jacket and winter hat covering his ears - is seen holding a steaming cup of what is said to be boiling water.
He suddenly throws the contents into the air behind him - before it immediately turns into ice and into a cloud of white smoke.