Posted AT 10:05 PM EST on 05/10/06
2006 Ig Nobels more fun than fingernails on a blackboard
Associated Press
BOSTON The sound sets teeth on edge, makes skin crawl and sends a shiver down the spine. Just thinking about it gives some people the heebie-jeebies.
But what is it about the sound of fingernails scratching on a blackboard that elicits such a universal reaction?
Randolph Blake and two colleagues think they know — the sound's frequency level.
The full text of this article has 726 words.
To continue reading this article, you will need to purchase this article.
Already have a member account? Login now
In Pictures

- Into the teeth of the storm

- Hurricane hunters ply risky trade to try to solve mystery of weather
Video Picks

- Into the wild

- Remote camera catches rare up-close images of bears, wolverines in the wild
- Rare rhino caught on tape

- Rare footage of the world's most threatened rhino shows it charging a hidden camera in Indonesia
- Fading flowers?

- New research suggests pollution is changing the way flowers smell
- Thames seahorses rebound

- Despite almost vanishing because of pollution, seahorses are now back and thriving in London's Thames River
Spectrum

- Smokin' roaches
- The sexual habits of male Madagascar hissing cockroaches
2
-
Video:
Smokin' roaches
Weird science

- Even platypus's genome is extraordinary
- Scientists say newly mapped platypus genome could help explain evolution
22




