HOME >> BIOLOGY >> NEWS
A surfeit of eels...

For centuries, schoolchildren have recited the tale of the demise of England's King Henry I, a cruel medieval monarch (blinded one kinsman, imprisoned another for 28 years) who died in a wretched state (so we're told) after dining on "a surfeit of eels of which he was inordinately fond" thus getting his in the end. For many of us, King Henry and his plate of boiled lampreys is the extent of our knowledge about eels.

Researcher Joseph Ayers at Northeastern University is about to change all that. Henry didn't eat eels; he ate lampreys, a secretive (but apparently tasty) eel-like creature long confused with eels, but actually a cyclostome with some interesting and useful properties. Lampreys swim by rhythmic undulations of their bodies resulting from waves of contractions down their bodies occurring out of phase. This phase delay is independent of frequency, so the lamprey's body contains a single wavelength of oscillation at any given time, and thus always maintains an S-shape during swimming. Speed is proportional to the frequency of this wave, and can vary by an order of magnitude. Lampreys can even swim backward. Ayers is building an autonomous robotic lamprey that can do the same thing.

Ayers is not new to this. He's been building robotic lobsters for years, and he's basing his lamprey's technology on those. "From my perspective, the fact that we can build a family of robots based on a common underlying controller technology is the essence of biomimetics," he says. Employing biomimetic neurotechnology - i.e. mimicking nature in technology -Ayers is using an artificial muscle material to control the movement of his lamprey's spinal cord. It comes complete with an onboard compass, a pitch-and-roll inclinometer, and will soon incorporate a sonar altimeter as well as a forward-looking sonar. A library of behavioral sequences is based on reverse-engineering command sequences from films of behaving lamprey.

"Now we're almost to the point
'"/>

Contact: Gail Cleere
cleereg@onr.navy.mil
703-696-4987
Office of Naval Research
26-Jun-2001


Page: 1 2

Related biology news :

1. Atacama rover helps NASA learn to search for life on Mars
2. Reducing allergens in the home helps inner-city children with asthma
3. As informatics grows, Indiana University helps set research agenda
4. New diagnostic technology helps justify earlier cataract surgery
5. New technique helps scientists reveal interactions between genes and drugs
6. Living at home helps young mothers stay in school
7. Hormone helps fish to mate, may affect human hearing
8. Harmless virus helps slow HIV by boosting immune proteins
9. Study helps explain island populations susceptibility to exotic diseases
10. Utah scientist helps discover new mouse species -- and maybe a new genus
11. Choice of food helps hungry caterpillar

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/23/2017)... N.Y. , June 23, 2017  IBM (NYSE: ... dairy research, today announced a new collaboration using next-generation ... chances that the global milk supply is impacted by ... Cornell University has become the newest academic institution to ... a food safety initiative that includes IBM Research, Mars, ...
(Date:5/23/2017)... the first robotic gym for the rehabilitation and functional motor sense evaluation ... Genoa, Italy . The first 30 robots will be available from ... . The technology was developed and patented at the IIT laboratories ... Technology thanks to a 10 million euro investment from entrepreneur Sergio Dompè. ... ...
(Date:5/16/2017)... 16, 2017   Bridge Patient Portal , ... MD EMR Systems , an electronic medical ... GE, have established a partnership to build an ... the GE Centricity™ products, including Centricity Practice Solution ... These new integrations will allow healthcare delivery ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... ... October 12, 2017 , ... ... announced today that they have entered into a multiyear collaboration to identify and ... researchers with additional tools for gene editing across all applications. , Under the ...
(Date:10/12/2017)... ... , ... AMRI, a global contract research, development and manufacturing ... and quality of life, will now be offering its impurity solutions as a ... requirements for all new drug products, including the finalization of ICH M7 earlier ...
(Date:10/11/2017)... ... October 11, 2017 , ... ... in its endogenous context, enabling overexpression experiments and avoiding the use of exogenous ... RNA guides is transformative for performing systematic gain-of-function studies. , This complement ...
(Date:10/11/2017)... ... October 11, 2017 , ... Proscia Inc ., ... a Webinar titled, “Pathology is going digital. Is your lab ready?” with Dr. ... best practices and how Proscia improves lab economics and realizes an increase in ...
Breaking Biology Technology:
Cached News: