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Topic: Electric ray


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In the News (Sat 2 Jun 12)

  
  Ray Electric Outboard Motors, Maryland Ray Electric Outboard Motor Dealer, Electric Trolling Motors, Reservoir ...
Ray Electric Outboard Motors have always been the standard of the industry that we started, and today we are the largest manufacturer of primary power electric outboards in the world.
The Ray Electric Outboard Motors are reliable, powerful, quiet outboard motor designed to give you and your family hassle free boating well into the twenty first century.
The true facts are that those who are interested in electric boating enjoy a relaxed lifestyle such as cruising and conversing with friends, enjoying a meal on the water, fishing or sipping cocktails in the evening as the sun paints the sky.
becksgunsmithing.com /ray.htm   (868 words)

  
 ray, in zoology. The Columbia Encyclopedia, Sixth Edition. 2001-05
Rays feed on a variety of smaller animals; the heavy, rounded teeth of most species are adapted to crushing the shells of snails and clams.
Unlike most rays, mantas are filter-feeders; the manta uses a pair of horns at the front of the head to drive small prey into its mouth; there the prey is caught in a strainer and swallowed, the water passing out through the manta’s gills.
Electric rays, or torpedos (family Torpedinidae), have electric organs in their wings that generate electric current, used to immobilize prey and for defense.
www.bartleby.com /65/ra/ray1.html   (615 words)

  
 Chondrichthyes, Electric Ray, Torpedo, EOD, Electric Organ discharge
Electric rays of the families Torpedinidae, Narkidae, Hyphnidae, and an extralimital family, are unique in having two large, kidney-shaped electric organs in the disc on either side of the head.
Electric rays of the family Torpendinidae are cartilaginous fish renowned for their ability to produce powerful electric discharges.
Rays of the genus Rajidae do have their rather eleongated electric organs positioned laterally on both sides of the tail all the way through to the base of the caudal tip.
www.sbg.ac.at /ipk/avstudio/pierofun/ray/eod.htm   (4646 words)

  
 Anemaw [Animal Electromagnetism and Waves] : Bioelectricity: Electric Ray . © Elizabeth Gerrow 2002 .
The electric ray is known to be the most electro-sensitive of all zoological organisms and their eyes are situated on the top of their head, providing for poor vision which must be balanced by use of other senses, including the detection of electricity.
Many species of rays and skates outside the family of the electric ray have electric organs located in the tail, however, the electric ray possesses two large electric organs on each side of its head, where current passes from the lower to the upper surface of the body.
It is with such a battery that an average electric ray may electrocute a large fish with a current between 50.0 amps to 50.0 to 60.0 V, to even 200.0 V, which gives the effect of a hair dryer being dropped into a tub of water.
members.fortunecity.com /anemaw/ray.htm   (711 words)

  
 Blind Electric Ray - A short history
Ray was plucked from obscurity at the age of sixteen by Dewey "Howlin' Dog" Ballantine, the rebel graveyard shift DJ on Dogtown's WDOG station after making a vanity recording for his mother at the station's studio.
Ray and his brother Jesse would often sit in the back pews of the Toccopola Episcopal Church which their mother was employed to clean, often while the choir rehearsed gospel and spiritual pieces.
Ray's paranoid delusions of alien encounters were the first outward symptoms of total emotional and psychological breakdown, a course that he had been charting since the death of his brother.
www.olly.buxton.btinternet.co.uk /Rayhist.htm   (2305 words)

  
 Electric ray - Wikipedia, the free encyclopedia
Electric rays (order Torpediniformes) are fish that have a rounded body and a pair of organs capable of producing an electric discharge, which is used to stun or kill prey.
Perhaps the most known members are those of the genus Torpedo, also called crampfish and numbfish, after which the device called a torpedo is named.
The name comes from the Latin "torpere", to be stiffened or paralyzed, referring to the effect on someone who handles or steps on a living electric ray.
en.wikipedia.org /wiki/Electric_ray   (135 words)

  
 Rays - Enchanted Learning Software
Rays are a type of flattened fish and are closely related to sharks.
Unlike other fish, rays and sharks have no bones; their skeleton is made of cartilage, which is a tough, fibrous substance, not nearly as hard as bone.
Rays live in oceans and seas all over the world, and some even spend part of their life in estuaries.
www.enchantedlearning.com /subjects/sharks/rays/index.shtml   (1243 words)

  
 electric ray - Britannica Concise
The electric organs, composed of modified muscle tissue, are in the disk near the head.
electric ray - any of the rays of the families Torpedinidae, Narkidae, and Temeridae, named for their ability to produce electrical shocks.
Cathode rays focused on a hard target (anticathode) produce X rays or focused on a small object in a vacuum generate very high temperatures (cathode-ray furnace).
concise.britannica.com /ebc/article-9363548   (483 words)

  
 Electric Ray (TORPEDO NOBILIANA) - European Federation of Sea Angling Records
The electric ray is a large ray with a huge, paddle-shaped caudal fin and with no papillae around spiracles.
The resilience of the electric ray is low with a minimum population doubling time of 4.5-14 years (up to 60 offspring only).
The electric ray can be found in subtropical climate from 60 degrees North to 35 degrees South and 82 degrees West to 36 degrees East.
www.efsa.co.uk /record/rayelectric.htm   (268 words)

  
 Electric Ray - The IEE
Electrical knowledge grew hand in hand with that of the inner workings of the human body.
John Walsh examined the effects of the torpedo ray and concluded that there was a link, but this was greeted was scepticism because its shock failed to pass even a small gap or produce a spark.
Henry Cavendish shed light on the matter by distinguishing between a quantity of electricity and its force, and the critics were finally silenced when Walsh produced a spark while experimenting with an electrical eel.
www.iee.org /TheIEE/Research/Archives/Exhibitons/MedicalElectricity/TorpedoRay.cfm?PrintVersion=true   (234 words)

  
 Electric fishes
The conditions are so different from the usual electrical accident situation where, for example, one stands in a bathtub full of water, which is grounded through the piping, and touches a live wire.
Narcine brasiliensis, the electric ray, does not reach as large a size as the torpedo since it seldom attains a length of two feet.
The ability of electroplaques to generate an electric current is due to the structure of their cell membranes and the activity of chemical pumps.
www.rsmas.miami.edu /support/lib/seas/seasQA/QAs/e/elecfish.html   (1549 words)

  
 Florida Museum of Natural History Ichthyology Department: Pacific Electric Ray   (Site not responding. Last check: )
In the English language, this ray is commonly referred to as Pacific electric ray, torpedo, Pacific torpedo, and electric ray.
The electric rays off the coast of Peru, Chile, and Japan may belong to this species as well, although this is yet to be determined.
Pacific electric rays are ovoviviparous with embryos feeding initially on yolk and eventually receiving additional nourishment from the mother through absorption of uterine fluid.
www.flmnh.ufl.edu /fish/Gallery/Descript/Peray/Peray.html   (1149 words)

  
 Lesser electric ray - Gulf Specimen Marine Laboratory
Electric Rays pull sand grains through their endolymphatic ducts located behind their eyes down into their sacculus, or inner ear, which is embedded in their skull.
Why the electric ray concentrates them deep within its skull or why it has an orange brain stem when no other organism has one is also a mystery.
The electric rays are not born with these exogenenous crystals.
www.gulfspecimen.org /Electric-Ray.html   (436 words)

  
 Ray Electric Outboard Motors, Maryland Ray Electric Outboard Motor Dealer, Electric Trolling Motors, Reservoir Fishing, ...
Ray Electric Outboard Motors have always been the standard of the industry that we started, and today we are the largest manufacturer of primary power electric outboards in the world.
The Ray Electric Outboard Motors are reliable, powerful, quiet outboard motor designed to give you and your family hassle free boating well into the twenty first century.
The true facts are that those who are interested in electric boating enjoy a relaxed lifestyle such as cruising and conversing with friends, enjoying a meal on the water, fishing or sipping cocktails in the evening as the sun paints the sky.
www.becksgunsmithing.com /ray.htm   (868 words)

  
 Monterey Bay Aquarium: Online Field Guide
As the electric organ discharges, the ray wraps its disc around the prey to concentrate the electric field and also to manipulate the fish to be eaten whole (head first).
Small commercial fisheries catch electric rays for biological and medical researchers, and some are caught by accident in trawls and gill nets.
Since contact with a ray’s electrical charge can cause numbness, ancient Romans and Greeks called these rays “numbfish.” They believed numbfish had therapeutic value and applied the rays to their bodies for treatment of gout, chronic headaches and other maladies.
www.mbayaq.org /efc/living_species?hOri=0&hab=7&inhab=510   (390 words)

  
 electric ray --  Britannica Concise Encyclopedia - The online encyclopedia you can trust!
The electric organs, composed of modified muscle tissue, are in the disk, one on each side of the head.
Electric shocks emitted reach 220 volts and are strong enough to fell a human adult.
Primarily slow-moving, bottom-dwelling fishes of the oceans, the skates and rays are close relatives of the sharks.
www.britannica.com /ebc/article-9032286   (800 words)

  
 Ray Electric Outboards, Inc., electric boating, electric boats, electric outboard
Whether you are on waters that require electric propulsion, or any water, or even a non boater, we appreciate the opportunity to tell you about how great electric boats are when you visit our web site.
Electric boating is different, you can get in and go with the same ease, as in your car.
Enjoy our website, and learn about E-boats that can handle your favorite waters, whether it be a electric only lake, a creek, a river, a large lake such as the Chesapeake Bay, trib exploring or a sleepy lagoon.
www.rayeo.com   (284 words)

  
 Schwinn Sting-Ray - Press Release - Electric Sting-Ray Launch   (Site not responding. Last check: )
The new Sting-Ray Electric will be available at various Schwinn retailers beginning in late May 2005 at an MSRP of $399.
An unusual feature on the Sting-Ray Electric is the ability to choose the mode of power.
Another handy feature on the Schwinn Sting-Ray Electric is the removable, rechargeable battery system, which can be charged on or off the bike.
www.schwinnstingray.com /pr_electric_sting-ray_launch.html   (780 words)

  
 California Diving News - Marine Life: Pacific Electric Ray - Steve Benavides
If you look at the underside of an electric ray you'll see two large rolls of tissue looking like loaves of bread running laterally down the center of the disk beneath the skin.
One photographer had a Torpedo Ray repeatedly "attack" his camera strobe, and when the ray was done the strobe would not function.
I just hope the shock of the meeting is a shock of the figurative type as opposed to the high voltage encounters these rays are capable of generating at a chance encounter with a visiting diver.
www.saintbrendan.com /cdnmay/marinlf5.html   (797 words)

  
 Electric Sky is one of the world's leading suppliers of factual TV content. Television Distribution
Electric Sky is one of the world's leading suppliers of factual TV content.
With a growing catalogue of over 1000 hours of vibrant and revealing television, Electric Sky offers hard-hitting documentaries, lifestyle programming, entertainment formats and special events shows.
Electric Sky sells child genius series to the Daily Mail
www.electricsky.com   (78 words)

  
 Re: How does an electric ray deliver his shock?
Electic rays have special kidney shaped organs which are located on the main "disc" of the animal, just behind the eyes.
One family of electric rays (Coffin rays) are so efficient at electricity production, you can get a nasty (but not fatal) shock from just pouring water over the animal.
Bringing the whole thing back to the ecology of the animal; electric rays use their special talents to stun prey - most of them eat crabs, benthic worms and slow moving, bottom dwelling fish.
www.madsci.org /posts/archives/may2001/989196029.Zo.r.html   (288 words)

  
 I Sing the Body Electric, Ray Bradbury - HarperAcademic   (Site not responding. Last check: )
The mind of Ray Bradbury is a wonder-filled carnival of delight and terror that stretches from the verdant Irish countryside to the coldest reaches of outer space.
Yet all his work is united by one common thread: a vivid and profound understanding of the vast seet of emotionsthat bring strength and mythic resonance to our frail species.
Yet all his work is united by one common thread: a vivid and profound understanding of the vast set of emotions that bring strength and mythic resonance to our frail species.
www.harperacademic.com /catalog/book_xml.asp?isbn=0380789620   (445 words)

  
 LESSER ELECTRIC RAY
Elasmodiver is an image database of sharks, skates, rays, and chimaera's from around the world.
Whilst following this ray, I observed it perform an evasive maneuver in which it rapidly kicked up sand in a plume which suggested it had shot forward and swum away.
This ray is easily found when traveling over sandy areas in its range.
www.elasmodiver.com /lesser_electric_ray.htm   (358 words)

  
 HMS Student Papers 1989 - Insulation stragies in the pacific electric ray Torpedo californica   (Site not responding. Last check: )
Abstract: This paper explores three aspects of the Pacific electric ray Torpedo californica: the basic anatomy of this fish, how the torpedo insulates itself from its own shock, and whether the torpedo's electroreception can be used as a tool for learning.
Using anatomical observations and skin resistance measurements, I set out to determine whether the torpedo's skin was different over the electric organs and non electric organ areas and how the torpedo insulates itself.
I believe that the other important insulation tactics are use of cartilege to protect the brain, heart and nerves, connective tissue to protect peripheral nerves, and placement of muscles as far from the electric organs as possible.
www-sul.stanford.edu /depts/miller/student_papers/1989_17.html   (233 words)

  
 Amazon.com: I Sing the Body Electric: Books: Ray Bradbury   (Site not responding. Last check: )
When I began reading "I Sing the Body Electric" I was a little worried that it wasn't up to the par of his other short story collections.
I usually adore Ray Bradbury short story collections, but I think it would be more honest of me to say that I "merely" very much enjoyed I SING THE BODY ELECTRIC!.
Ray Bradbury, arguably the most popular 20th century writer of fantasy and science fiction, is a perfect example.
www.amazon.com /exec/obidos/tg/detail/-/1568494513?v=glance   (3442 words)

  
 RAY CAMPI
Ray Campi will be releasing a compilation of duets and other collaborations on the Swedish label SCANA AB.
Kevin Fennell, Ray's guitarist on tour and on record during the 1970s and early 80s, joins Ray (and Rip Masters) again for their show at The Derby 4/16/2000.
Ray Campi has met or worked with nearly all the early pioneers of what came to be known as rock 'n' roll.
www.electricearl.com /campi.html   (1121 words)

  
 Schwinn Forums - electric ray
I was under the impression they would be out @ the end of the month....who knows.
The inside scoop I had was the the 3 spd and the electric wld appear end of May/early June.
I aint heard of one yet, but who knows, maybe one of you rocket scientists have the inside scoop of stuff I didn'nt know yet.
www.schwinnbike.com /heritage/showthread.php?t=24626   (387 words)

  
 MSN Encarta - Search Results - electric ray   (Site not responding. Last check: )
Torpedo (fish), also electric ray, any of several related rays that inhabit warm seas and often are of large size, reaching a length of up to 1.8 m...
Ray, in zoology, common name for any of about 425 species of cartilaginous fishes found in almost all seas.
Search for books about your topic, "electric ray"
encarta.msn.com /electric+ray.html   (119 words)

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