Talking Points Memo
This Modern World
Working for Change
Book review: Darwinia
Reviewed: Friday, August 11, 2006
Summer reading: Spin
Reviewed: Saturday, August 5, 2006
Reviewed: Tuesday, July 18, 2006
the Omnivoire's Delimma
Reviewed: Wednesday, July 12, 2006
the Golem's Eye
Reviewed: Wednesday, May 31, 2006
Quick Robin, get the bat-bot
Tuesday, August 30, 2005
From Wired (via American Scientist) we present the bat-bot: the first robot that uses in-air sonar effectively for sensing and navigation. It's modeled closely after real bats but we humans have a long way to go:
For all its sophistication, the Bat-Bot still can't hold a candle to its biological progenitor. ... [relies on a] series of powerful computers that crunch through acoustical data from about 750 frequency channels in each ear.
... It turns out a bat's hearing is as complex as it is acute, with hundreds of thousands of frequency channels in each ear, and as many neural receptors, totaling "perhaps a million separate elements,"
"The real challenge is to find a way to duplicate the tremendous parallel processing power of a bat's brain," Simmons said.
A brain that's the size of a pea, he adds.
Now that's high density computation!