Featured Research

from universities, journals, and other organizations

Robotic clam digs in mudflats

Date:
November 25, 2009
Source:
American Institute of Physics
Summary:
To design a lightweight anchor that can dig itself in to hold small underwater submersibles, Anette Hosoi of MIT borrowed techniques from one of nature's best diggers -- the razor clam.

To design a lightweight anchor that can dig itself in to hold small underwater submersibles, Anette (Peko) Hosoi of MIT borrowed techniques from one of nature's best diggers -- the razor clam.

Related Articles


"The best anchoring technology out there is an order or magnitude worse than the clam -- most are two or three orders worse," says Hosoi, whose group is presenting this work at the 62nd Annual Meeting of the American Physical Society's (APS) Division of Fluid Dynamics will take place from November 22-24 at the Minneapolis Convention Center.

Using relatively simple anatomy, the bivalve burrows into the bottom of its native mudflats at a rate of a centimeter per second. Hosoi's studies of the physics behind this remarkable ability have revealed that the digging is accomplished in two motions -- a push upwards with its foot, which mixes the grains of solid into the liquid above, and a synchronized push down.

By borrowing this principle, Hosoi and graduate student Amos Winter have created a simple robot that is now being tested out in the salt water mudflats off of Cape Cod. It digs just as fast as the living clam and is "small, lightweight, and does not use a lot of energy," says Hosoi.

The robot is operated electronically via a tether and is made to open and close via pressured air from a scuba tank.

The presentation, "The design, testing, and performance of RoboClam, a robot inspired by the burrowing mechanisms of Atlantic razor clam (Ensis directus)" by Amos Winter et al of MIT is on November 22, 2009.


Story Source:

The above story is based on materials provided by American Institute of Physics. Note: Materials may be edited for content and length.


Cite This Page:

American Institute of Physics. "Robotic clam digs in mudflats." ScienceDaily. ScienceDaily, 25 November 2009. <www.sciencedaily.com/releases/2009/11/091122161746.htm>.
American Institute of Physics. (2009, November 25). Robotic clam digs in mudflats. ScienceDaily. Retrieved November 28, 2014 from www.sciencedaily.com/releases/2009/11/091122161746.htm
American Institute of Physics. "Robotic clam digs in mudflats." ScienceDaily. www.sciencedaily.com/releases/2009/11/091122161746.htm (accessed November 28, 2014).

Share This


More From ScienceDaily



More Science News

Friday, November 28, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

New Dinosaur Species Found in Museum Collection

New Dinosaur Species Found in Museum Collection

Reuters - Innovations Video Online (Nov. 27, 2014) A British palaeontologist has discovered a new species of dinosaur while studying fossils in a Canadian museum. Pentaceratops aquilonius was related to Triceratops and lived at the end of the Cretaceous Period, around 75 million years ago. Jim Drury has more. Video provided by Reuters
Powered by NewsLook.com
Ebola Leaves Orphans Alone in Sierra Leone

Ebola Leaves Orphans Alone in Sierra Leone

AFP (Nov. 27, 2014) The Ebola epidemic sweeping Sierra Leone is having a profound effect on the country's children, many of whom have been left without any family members to support them. Duration: 01:02 Video provided by AFP
Powered by NewsLook.com
Experimental Ebola Vaccine Shows Promise In Human Trial

Experimental Ebola Vaccine Shows Promise In Human Trial

Newsy (Nov. 27, 2014) A recent test of a prototype Ebola vaccine generated an immune response to the disease in subjects. Video provided by Newsy
Powered by NewsLook.com
Scientists Find Invisible Space Shield Protecting Earth

Scientists Find Invisible Space Shield Protecting Earth

Newsy (Nov. 27, 2014) An invisible barrier is keeping dangerous super fast electrons from interfering with our atmosphere, but scientists aren't entirely sure how. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins