Third Quarter 2018 Volume 26 • Number 96 BEV MORGAN WITHOUT EQUAL
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Review of Diver Noise Exposure
doi:10.3723/ut.29.021 International Journal of the Society for Underwater Technology, Vol 29, No 1, pp 21–39, 2010 Review of diver noise exposure TG Anthony, NA Wright and MA Evans QinetiQ Ltd, Hampshire, UK Technical Paper Abstract • Assess the risk to all employees, including divers, Divers are exposed to high noise levels from a variety from noise at work of sources both above and below water. The noise • Take action to reduce the noise exposure that exposure should comply with `The Control of Noise produces these risks at Work Regulations 2005' (CoNaWR05, 2005). A • Provide hearing protection if the noise risk detailed review of diver noise exposure is presented, cannot be reduced sufficiently by other methods encompassing diver hearing, noise sources, exposure • Ensure legal limits on noise exposure are not levels and control measures. Divers are routinely exceeded exposed to a range of noise sources of sufficiently high • Provide employees with information, instruction intensity to cause auditory damage, and audiometric and training studies indicate that diver hearing is impaired by • Conduct health surveillance where there is a risk exposure to factors associated with diving. Human to health. hearing under water, in cases where the diver's ear is The CoNaWR05 requires employers to take wet, is less sensitive than in air and should be assessed specific action at certain noise action values. These using an underwater weighting scale. Manufacturers of relate to the levels of exposure to noise of divers diving equipment and employers of divers have a joint averaged over a working day or week and the responsibility to ensure compliance with the exposure maximum noise (peak sound pressure) to which values in the CoNaWR05, although noise is only one they may be exposed. -
History of Scuba Diving About 500 BC: (Informa on Originally From
History of Scuba Diving nature", that would have taken advantage of this technique to sink ships and even commit murders. Some drawings, however, showed different kinds of snorkels and an air tank (to be carried on the breast) that presumably should have no external connecons. Other drawings showed a complete immersion kit, with a plunger suit which included a sort of About 500 BC: (Informaon originally from mask with a box for air. The project was so Herodotus): During a naval campaign the detailed that it included a urine collector, too. Greek Scyllis was taken aboard ship as prisoner by the Persian King Xerxes I. When Scyllis learned that Xerxes was to aack a Greek flolla, he seized a knife and jumped overboard. The Persians could not find him in the water and presumed he had drowned. Scyllis surfaced at night and made his way among all the ships in Xerxes's fleet, cung each ship loose from its moorings; he used a hollow reed as snorkel to remain unobserved. Then he swam nine miles (15 kilometers) to rejoin the Greeks off Cape Artemisium. 15th century: Leonardo da Vinci made the first known menon of air tanks in Italy: he 1772: Sieur Freminet tried to build a scuba wrote in his Atlanc Codex (Biblioteca device out of a barrel, but died from lack of Ambrosiana, Milan) that systems were used oxygen aer 20 minutes, as he merely at that me to arficially breathe under recycled the exhaled air untreated. water, but he did not explain them in detail due to what he described as "bad human 1776: David Brushnell invented the Turtle, first submarine to aack another ship. -
Miller Manual
MILLER DIVING EQUIPMENT INC. Miller 400 Diving Helmet Maintenance Manual © Miller Diving All Rights Reserved Document # 030715001 1 MILLER 400 DIVING HELMET OPERATIONS AND MAINTENANCE MANUAL Part # 100-900 TABLE OF CONTENTS WARRANTY ............................................................................................................................... 3 DEFINITIONS OF SIGNAL WORDS ........................................................................................ 4 IMPORTANT SAFETY INFORMATION .................................................................................. 5 SECTION 1: GENERAL INFORMATION 1-A INTRODUCTION ............................................................................................. 7 1-B GENERAL DESCRIPTION OF MILLER 400 ................................................ 7 SECTION 2: OPERATING INSTRUCTIONS AND PROCEDURES 2-A PRE-DIVE PROCEDURE .................................................................................8 2-B DRESSING INTO THE MILLER HELMET ....................................................8 2-C OPERATING INSTRUCTIONS .......................................................................9 2-D EMERGENCY PROCEDURES ........................................................................9 2-E RECOMMENDED MATERIALS FOR MAINTENANCE .............................10 SECTION 3: DESCRIPTIONS, MAINTENANCE AND REPLACEMENT 3-A HELMET SHELL ..............................................................................................12 3-B FACE PLATE AND FACE RING .....................................................................12 -
Stefano Ruia
LA NARCOSI DA AZOTO di Stefano Ruia 1 - L’EBBREZZA DEGLI ABISSI La narcosi da azoto, definita dai medici “sindrome neuropsichica da aria compressa” (legata cioè alla respirazione di aria in pressione), è uno dei fenomeni che i subacquei imparano a conoscere subito, poiché influenza le immersioni a profondità già comprese nella fascia detta “ricreativa”, e con la quale tutti abbiamo dovuto imparare a convivere. Eppure ancora oggi la scienza non ha compreso del tutto i meccanismi biologici di questo stato di alterazione psicologica e ottenebramento mentale. Approfondiamo con questo dossier lo “stato dell’arte” su questo fenomeno, tanto comune e misterioso. Fu uno dei primi film subacquei che vidi. Era il “Il Mondo del Silenzio” di Cousteau, filmato – come operatore - da quel grande cineasta che sarà Louis Malle. Fu girato nella seconda metà degli anni ’50 dello scorso secolo. Beh, non sono così vecchio, ma quando la TV lo ripropose, qualche anno dopo, mi fu permesso di vederlo (allora per guardare la TV dopo “Carosello” i bambini dovevano ottenere – e non era facile - il permesso … bei tempi!). Una scena mi colpì molto. Durante una delle consuete “razzie” sui fondali (a quei tempi erano permesse e anzi rappresentavano la spinta più forte all’immersione con le bombole) il subacqueo perdeva il controllo e lo riacquistava solo in risalita. Aveva subito l’influsso della perfida “ebbrezza di profondità”. Questo terribile nemico mi metteva in agitazione, soprattutto quando mio padre partiva per andare a caccia subacquea al mare. Allora non facevo differenza fra apnea e autorespiratore. Così, come molti altri subacquei, sono cresciuto con l’idea che gli eroi della “Calipso” (la nave di Cousteau) per primi avessero scoperto questo tremendo fenomeno con cui fare i conti. -
Diving—A Sport, That Requires SKILL, GRACE, COURAGE and STRENGTH!
December 2015 Diving—A sport, that requires SKILL, GRACE, COURAGE AND STRENGTH! A warm welcome to all our Learn To Dive athletes and their Families! We hope you have enjoyed our Fall session and are keen to register for the fast approaching Winter Ses- sion, starting January 4th 2016. Use this link to get to the registration page! http://forestcitydiving.com/? page_id=669 Check it out and secure a spot for your aspiring diver! For current divers, please, do not miss registration for Mini Meet, held on December 19th! Also to plan ahead, please, register for our March Break Camp—a great way to spend the holidays and 2015/2016 Precompetitive and Competitive FCDC -Team work on those dives! Registration Link: http://forestcitydiving.clubhost.ca/Classes.asp? Session=March%20Break%202016 Coach’s Corner We are now three months into the new season and I am very happy how all my athletes are performing. There are always many things to work on to get everybody ready for the first competition. Especially as some of our divers have changed age groups. Important FCDC Dates I have exciting news to share with you! January is going to be a Dec. 2nd to 5thCAMO Competition busy month for us ! Dec 12th FCDC Christmas Party Katelyn is invited by Dive Canada to participate in a High Perfor- December 19th LTD Mini Meet mance Athlete Development Camp! Al’x, Faith, Anika, Josh and Camryn as well as myself are invited to a Dive Ontario Canada December 23rd Last Day of Fall Games Training Camp! Also in January these six competitive divers Session from FCDC and myself will be part of an 18 diver group from Canada January 4th 2016 First Day of Win- to train in China for two weeks. -
Mid-Atlantic Coastal and Ocean Recreation Study
1ŋ),%ŋŋČŋŋ1ŋ ,-3ŋŋČŋŋ&1,ŋŋČŋŋ ,3&(ŋŋČŋŋ#,!#(# MID-ATLANTIC COASTAL AND OCEAN RECREATION STUDY The Surfrider Foundation, in partnership with Point 97, The Nature Conservancy, and Monmouth University’s Urban Coast Institute, (the Team), and in collaboration with the Mid-Atlantic Regional Council on the Ocean (MARCO), conducted a Coastal and Ocean Recreation Study (Study) for the Mid-Atlantic region in 2013-2014. The Study engaged recreational users and the public in providing data on “non-consumptive” recreational use, including surfing, diving, kayaking, beach going, and wildlife viewing. This data was previously unavailable and fills a key gap in our understanding of coastal and ocean uses in the Mid-Atlantic. METHODS The Team used a web-based survey accessible by mobile phones, tablets, or desktop/laptop computers to collect data from respondents on recreational use patterns, trip expenditures, and demographics. To obtain this data, the survey included a series of questions and an easy-to-use interactive mapping tool, where respondents could mark the places they went to recreate over the last year. The Team then analyzed the resulting spatial data to develop maps indicating intensity of use for recreational activities in the region (see map insert). To promote participation in the Study, the Team conducted outreach to over 300 recreational groups and businesses throughout the Mid- Atlantic region. In total, Mid-Atlantic respondents completed nearly 1,500 surveys resulting in over 22,000 unique data points. STUDY FINDINGS Coastal and ocean recreation encompasses a popular and diverse group of activities in the Mid-Atlantic (see graphic below), resulting in major economic and social benefits to coastal communities. -
Surf-Skate Lesson Release Surf
LIABILITY RELEASE for OHANA SURF & SKATE EVENTS : SURF DOG 2017 DATE: 07/16/2017 Owner Name: Surf Dog Name: Age: Male / Female Address: City: State: Zip Code: Phone: This is an important document. You must read this agreement, understand it and sign it to be allowed to participate in the Ohana Surf & Skate Event activities. By signing this agreement, you waive certain legal rights, including the right to sue. I / Owner, affirm, acknowledge, and understand the inherent hazards and risks associated with skateboarding, surfing, skin-diving, skim boarding, body- boarding, and all the ocean and shore activities conducted by Ohana Surf & Skate Events. I understand the hazards and risks associated with such activities can lead to severe and permanent injury and even death. Despite the potential hazards and dangers associated with skateboarding, surfing, skin-diving, skim boarding, body-boarding, and all activities conducted by Ohana Surf & Skate Events, I wish to proceed and freely accept and expressly assume all risks, dangers and hazards which may arise from these activities and which could result in personal injury, death, and property damage to my child or ward. In consideration of being allowed to participate in Ohana Surf & Skate Events as well as being allowed to use of any of the facilities and equipment of the below listed releases, I hereby agree as follows: To waive and release any and all claims I may have in the future against any of the following unnamed persons or entities (hereinafter referred to as Releasees): all instructors, -
It's Not the Most Glamorous Job in the World, and It's Not the Highest Profile
Tidal Thames.qxd 9/24/07 2:22 PM Page 8 n the bottom Thames Estuary. As commercial diving a falling tide, but leave them the diver, a stand-by diver and a Kevin said: “She gives us a large of the He rarely knows what goes, the PLA team doesn’t vulnerable on rising tides. So tender or dive assistant. deck area to work on and her speed’s Thames, the day will hold or, once go deep - typically around everything we do has to be timed They can dive from any vessel; very important. In an emergency we Mick he’s under the water, what eight to 20 metres. But poor precisely, according to where in the but they prefer to use their own may only have a narrow tidal window Russell is will loom out of the visibility and shifting river we’re expected to work.” specially designed boat PLA Diver. It to work in, if we miss it, we could be blind. darkness - driftwood, currents in some of the The divers get their jobs from was built in 1992 by Searle Williams waiting up to 11 hours before the The water’s disturbed wartime busiest port waters in either the PLA’s Marine Services team, on a Blyth 33 hull. At 10 metres long conditions are right again - so it’s thick with silt and, just a explosives, the occasional Britain, makes the Thames a Vessel Traffic Services (VTS) officers, and with a displacement of seven vital we get on scene quickly.” few inches from where he’s corpse. -
Underwater Inspection and Repair of Bridge Substructures
[.Tl [•1•] NATIONAL COOPERATIVE HIGHWAY RESEARCH PROGRAM SYNTHESIS OF HIGHWAY PRACTICE UNDERWATER INSPECTION AND REPAIR OF BRIDGE SUBSTRUCTURES Supv ) ç J j p1 JUNO 81982 3 up2Leder I.T.D. DIV OF H!GHWAYS BRIDGE SECTION FUe_OUT MAIL TRANSPORTATION RESEARCH BOARD NATIONAL RESEARCH COUNCIL TRANSPORTATION RESEARCH BOARD EXECUTIVE COMMITTEE 1981 Officers Chairman THOMAS D. LARSON Secretary, Pennsylvania Department of Transportation Vice Chairman DARRELL V MANNING, Director, Idaho Transportation Department Secretary THOMAS B. DEEN, Executive Director, Transportation Research Board Members RAY A. BARNHART, Federal Highway Administrator, U.S. Department of Transportation (cx officio) ROBERT W. BLANCHETTE, Federal Railroad Administrator, U.S. Department of Transportation (cx officio) FRANCIS B. FRANCOIS, Executive Director, American Association of State Highway and Transportation Officials (cx officio) WILLIAM J. HARRIS, JR., Vice President—Research and lest Department, Association of American Railroad.. (ex officio) J. LYNN HELMS, Federal Aviation Administrator, U.S. Department of Transportation (cx officio) PETER G. KOLTNOW, President, Highway Users Federation for Safety and Mobility (cx officio. Past Chairman, 1979) ELLIOTT W. MONTROLL, Chairman, Co,n,nission on Sociotechnical Systems, National Research Council (cx officio) RAYMOND A. PECK, JR., National Highway Traffic Safety Administrator, U.S. Department of Transportation (cx officio) ARTHUR E. TEELE, JR., Urban Mass Transportation Administrator, U.S. Department of Transportation (cx officio) JOHN F. WING, Senior Vice President, Booz. Allen & Hamilton. Inc. (cx officio, MTRB liaison) CHARLEY V. WOOTAN. Director, Texas Transportation Institute, Texas A&M University (cx officio, Past Chairman 1980) GEORGE J. BEAN. Director of Aviation, Hilisborough County (Florida) Aviation Authority THOMAS W. BRADSHAW, JR., Secretary, North Carolina Department of Transportation RICHARD P. -
Why an Underwater Habitat? Underwater Habitats Are Useful Because They Provide a Permanent Working Area for Aquanauts (Divers) W
[Type a quote from the document or the summary of an interesting point. You can position the text box anywhere in the document. Use the Drawing Tools tab to change the formatting of the pull quote text box.] Abstract What are the different types of Underwater Habitat and how do they differ? What is the Technology used in Underwater Habitats? Underwater habitats are useful study environments for researchers including marine biologists, There are three main types of underwater habitat that are distinguished from one psychologists studying the effects of prolonged periods of isolation in extreme environments, another by how they deal with water and air pressure. The first type, open To access an underwater lab, divers sometimes swim or take submersibles and physiologists studying how life adapts to different pressures. The technologies used and pressure, has an air pressure inside that is equal to the water pressure outside. which then dock with the facility. Shallow habitats may even be accessed by data gleaned from these studies have applications in space research, and in the future Decompression is required for divers returning to the surface from this type of climbing a ladder or taking an elevator. Deep-sea labs have been taken by crane underwater habitats can be used for industrial activity such as mining the deep sea, and facility, but they are able to go in and out of the laboratory on diving missions with from a boat and placed in the sea. In those labs deep underwater, it becomes expansion of these technologies extends humanity’s reach across earth’s biosphere into its relative ease, due to the fact that they don’t need to acclimate to differing dangerous to breathe in the same air as on the surface because the nitrogen oceans. -
Theory and Treatment Solo Cave Diving
Decompression Sickness: Theory and Treatment Solo Cave Diving: Just How Safe Is It? A Few Words About Decompression Schedules Cave Diving Into The Dominican Past Diving Pioneers & Innovators: A Series of In Depth Interviews (Dick Bonin) Issue 8 – September 2012 Contents Editorial Editorial 2 Welcome to the eighth issue of Tech Diving Mag. In this issue, the contributors have, once more, brought together a wealth Decompression Sickness: Theory and Treatment of information, along with some distinctive first hand experiences. The By Bret Gilliam 3 contributors for this issue are world renowned industry professional Bret Gilliam, accomplished diver, instructor trainer and book author Steve Lewis, technical diving instructor Peter Buzzacott (PhD) and Solo Cave Diving: Just How Safe Is It? cave explorer Cristian Pittaro. Get to know more about them and read By Peter Buzzacott 22 their bio at www.techdivingmag.com/contributors.html. As you might know, Tech Diving Mag is based on article contribution A Few Words About Decompression Schedules from the readership. So you’re always welcome to drop me a line if you’re interested in volunteering an article. One more much appreciated By Steve Lewis 29 thing is your photos (even without articles)! For submission guidelines, take a look at www.techdivingmag.com/guidelines.html. Cave Diving Into The Dominican Past Tech Diving Mag is very much your magazine and I am always keen By Cristian Pittaro 37 to have your input. If you want to share your views, drop me a line at [email protected]. Diving Pioneers & Innovators: A Series of In Please visit www.techdivingmag.com/communicate.html to subscribe Depth Interviews (Dick Bonin) to the newsletter in order to be notified when new issues are available for download. -
Hugh Bradner's Development of the First Wet Suit
UC San Diego SIO Reference Title Wet Suit Pursuit: Hugh Bradner's Development of the First Wet Suit Permalink https://escholarship.org/uc/item/7353g3dj Author Rainey, Carolyn Publication Date 1998-11-01 eScholarship.org Powered by the California Digital Library University of California Wet Suit Pursuit: Hugh Bradner's Development of the First Wet Suit Carolyn Rainey Archives of the Scripps Institution of Oceanography University of California, San Diego La Jolla, CA 92093-0219 November 1998 SIO Reference Number 98-16 In the 100th anniversary issue of Sunset Magazine, published May 1998, the “ongoing timeline of major events” says that in 1952 UC Berkeley physicist Hugh Bradner invented the wet suit. This single fact summarizes a more complex story. In the spring of 1951 Bradner decided to spend some “weekend time” improving the equipment for the navy frogmen. Soon thereafter, he sent ideas and concepts of the wet suit to UC Berkeley physicist, Lauriston C. “Larry” Marshall, who was involved in a U.S. Navy/National Research Council Panel on Underwater Swimmers. In the fall of 1951 the effort to actively develop the wet suit began when colleagues at the Berkeley Radiation Lab joined Bradner in the fabrication and testing of various materials. At the end of 1949, the U.S. Marine Corps, U.S. Navy, and National Research Council agreed to work together using scientific applications to solve amphibious operational problems. A committee was formed under the chairmanship of UC Berkeley engineer Murrough P. “Mike” O’Brien. Several government panels met to discuss and watch East Coast and West Coast underwater demolition teams in action.