Dry laundry in frost
Although it is just spring and it sounds like a joke, but it is true: Who wants to dry laundry in the winter, the laundry should hang out at minus temperatures quiet times outside (if you have the opportunity to do so).
If it has minus degrees outside, you hang out the wet laundry. Of course it will be hard first, because it freezes. But then it happens. After a while the ice disappears and the laundry is cold but dry.
The explanation for this: Water below zero does not know three aggregate states (solid, liquid, gaseous), but only two (solid and gaseous). The water in the laundry freezes and then it sublimes - and evaporates.
