Which method of drying my hands uses less energy: an electric blow-dryer or a paper towel made of dried wood pulp?
Ian Cutter, Victoria, Australia
We pay £25 for every answer published in 91av. To answer this question – or ask a new one – visit newscientist.com/lastword. Terms and conditions apply.
This article appeared in print under the headline “Drying dilemma”
Advertisement
Topics:
