Like many people, I wasn’t particularly surprised by a recent, much-reported study demonstrating that a Dyson Airblade hand-dryer basically does the same thing that every hand-dryer does: blow all kinds of germs back onto your hands. (Though, in the case of the Dyson, it does manage to blow those germs at impressive velocity.)

The study did, however, remind me of this great TED talk, about how to dry your hands using a paper towel:

Like the previously-blogged Bloomberg video on how to tie your shoes, this hand drying thing has stuck with me ever since, as it really works.