Texarkana Gazette

Winners of this year’s Ig Nobels include researcher­s who designed a device to get people to shut up,

- By Mark Pratt Ig Nobels: improbable.com

BOSTON—For anyone who’s ever been tired of listening to someone drone on and on and on, two Japanese researcher­s have the answer.

The Speech Jammer, a device that disrupts a person’s speech by repeating his or her own voice at a delay of a few hundred millisecon­ds, was named Thursday as a 2012 winner of the Ig Nobel prize—an award sponsored by the Annals of Improbable Research magazine for weird and humorous scientific discoverie­s.

The echo effect of the device is just annoying enough to get someone to sputter and stop.

Actually, the device created by Kazutaka Kurihara and Koji Tsukada is meant to help public speakers by alerting them if they are speaking too quickly or have taken up more than their allotted time.

“This technology ... could also be useful to ensure speakers in a meeting take turns appropriat­ely, when a particular participan­t continues to speak, depriving others of the opportunit­y to make their fair contributi­on,” said Kurihara, of the National Institute of Advanced Industrial Science and Technology in Japan.

Still, winning an Ig Nobel in acoustics for the device’s other more dubious purpose is cool too.

“Winning an Ig Nobel has been my dream as a mad scientist,” he said.

As usual, the ersatz Nobels were handed out by real Nobel laureates, including 2007 economics winner Eric Maskin, who was also the prize in the “Win a Date with a Nobel Laureate” contest.

Other winners feted Thursday at Harvard University’s opulent Sanders Theatre included Dutch researcher­s who won the psychology prize for studying why leaning to the left makes the Eiffel Tower look smaller; four Americans who took the neuroscien­ce prize for demonstrat­ing that sophistica­ted equipment can detect brain activity in dead fish; a British-American team that won the physics prize for explaining how and why ponytails bounce; and the U.S. General Accountabi­lity Office, which won the literature prize for a report about reports.

Rouslan Krechetnik­ov, an engineerin­g professor at the University of California Santa Barbara, and graduate student Hans Meyer took home the fluid dynamics prize for research into the sloshing that goes on in coffee cup as it’s carried.

Like many projects that have won Ig Nobels in the past, it started in a casual conversati­on based on everyday observatio­ns. Krechetnik­ov and Meyer were taking a coffee break at a confer- ence last year when they watched as others milled around trying to prevent staining their clothes.

The science of sloshing liquids has been studied before—in rocketry, for example, shifting weight can destabiliz­e a missile or rocket—but no one’s ever really studied coffee as it splashes around, Krechetnik­ov said. “It is one of those cases where we were interested in explaining the phenomena, but not changing it,” he said.

The reason coffee spills?: A person’s walking speed, their mental focus and, surprising­ly enough, noise. Are there practical applicatio­ns? You could design a better coffee cup by using what Krechetnik­ov calls “a series of annular ring baffles arranged around the inner wall of the container to achieve sloshing suppressio­n,” although those solutions are impractica­l.

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