biology friends Science

David Logue on Quirks and Quarks

One of my good friends, David Logue, was on this week’s episode of Quirks and Quarks.

The interview is about cricket songs. We tested the H that aggressive signals mitigate the costs of fighting by muting and looking at a population that had lost its song. Turns out they fight like crazy if they can’t signal.

Quirks and Quarks April 17, 2010

From Quirks and Quarks Website:

Silent means Deadly

When crickets fight, there’s a lot of noise. Not just the clashing of mandibles and the clicking of legs, but the cricket equivalent of “trash talking” as well. Dr. David Logue, a biologist at the University of Puerto Rico and his colleagues from the University of Lethbridge in Alberta, were interested in what would happen when the crickets couldn’t make the sounds associated with their fights. What they saw was mayhem. Crickets, who were either naturally silent or had their noisemakers removed, fought viciously, longer, and more violently than those full of sound and fury. Apparently, these insects use bluster not to provoke, but to avoid violence.

Photography Science

Advanced Photography Research at Stanford

Last fall Robert Scoble and Thomas Hawk interviewed Marc Levoy, Stanford University Professor of both computer science and electrical engineering.

Levoy shows them leading edge research about automatically stitching images together, digitizing real world three dimensial objects like statues, and among others, camera technology that allows you to refocus the image AFTER you shoot it!

Multi-array image

You can view the interview here.

See also: CNet’s article about the multi-dimensional focusing technology.