“Endodontic instruments are described which have at least a section with a center of mass offset from an axis of rotation so that when the instrument is rotated, the section bends away from the axis of rotation.”
Dr. Ivan Schwab explains why woodpeckers don’t get headaches, in this Discovery Channel video:
He explains it in more detail, in this TEDx Talk:
Dr. Schwab, of the University of California Davis, and the late Philip R.A. May of the University of California Los Angeles, were awarded the 2006 Ig Nobel Prize for ornithology, for exploring and explaining why woodpeckers don’t get headaches.
REFERENCE: “Cure for a Headache,” Ivan R Schwab, British Journal of Ophthalmology, vol. 86, 2002, p. 843.
REFERENCE: “Woodpeckers and Head Injury,” Philip R.A. May, JoaquinM. Fuster, Paul Newman and Ada Hirschman, Lancet, vol. 307, no. 7957, February28, 1976, pp. 454-5.
REFERENCE: “Woodpeckers and Head Injury,” Philip R.A. May, JoaquinM. Fuster, Paul Newman and Ada Hirschman, Lancet, vol. 307, no. 7973, June 19,1976, pp. 1347-8.
This video from the University of Southern California (USC) explains how USC researchers are following in the path laid out by Dr. Schwab, to better understand how the woodpecker insights might be applied to protecting the brains of human football players:
BONUS: Dr. Schwab also wrote the bookEvolution’s Witness: How the Eye Evolved.
I‘ll be doing a talk about writing about improbable things, on Tuesday, October 28, at the Barker Center (12 Quincy Street, Harvard University), starting at 7:30 pm. It’s free, and open to the public.
This event is part of the Harvard Writers at Work series. Despite what the series name implies, I will not sit on a stage and type for an hour, to the acclaim or disdain of the audience. I will just talk.