Ocean 11 Ancient Manuscripts Contain Depictions of Early Divers
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Compressed Air Compressed
Construction Planning, Equipment, and Methods Sixth Edition CHAPTER COMPRESSEDCOMPRESSED AIRAIR • A. J. Clark School of Engineering •Department of Civil and Environmental Engineering By 11 Dr. Ibrahim Assakkaf ENCE 420 – Construction Equipment and Methods Spring 2003 Department of Civil and Environmental Engineering University of Maryland, College Park CHAPTER 11. COMPRESSED AIR Slide No. 1 ENCE 420 ©Assakkaf COMPRESSEDCOMPRESSED AIRAIR 1 CHAPTER 11. COMPRESSED AIR Slide No. 2 ENCE 420 ©Assakkaf INTRODUCTION Compressed air is used for: 9Drilling rock 9Driving piles 9Operating hand tools 9Pumping 9Cleaning PAVING PUMP BREAKER CHAPTER 11. COMPRESSED AIR Slide No. 3 ENCE 420 ©Assakkaf INTRODUCTION In many instances the energy supplied by compressed air is the most convenient method of operating equipment and tools. When air is compressed, it receives energy from the compressor. This energy is transmitted through a pipe or hose to the operating equipment, where a portion of the energy is converted into mechanical work. 2 CHAPTER 11. COMPRESSED AIR Slide No. 4 ENCE 420 ©Assakkaf INTRODUCTION The operations of compressing, transmitting, and using air will always result in a loss of energy, which will give an overall efficiency less than 100%, sometimes considerably less. CHAPTER 11. COMPRESSED AIR Slide No. 5 ENCE 420 ©Assakkaf INTRODUCTION Things to consider: 9Effect of altitude on capacity. 9Loss of air pressure in pipe and hose systems. 9Capacity factors. 3 CHAPTER 11. COMPRESSED AIR Slide No. 6 ENCE 420 ©Assakkaf OVERVIEWOVERVIEW Selecting the right air compressor depends on many factors. ¾ Compressor capacity and operating pressure depend on the tools used. ¾ Engine and compressor lose power and capacity as altitude increases and temperature rises. -
Copyright National Academy of Sciences. All Rights Reserved. Memorial Tributes: Volume 16
Memorial Tributes: Volume 16 Copyright National Academy of Sciences. All rights reserved. Memorial Tributes: Volume 16 CHRISTIAN J. LAMBERTSEN 1917–2011 Elected in 1977 “For contributions to environmental science and to diving physiology and technology.” BY TOM HAWKINS SUBMITTED BY THE HOME SECRETARY CHRISTIAN J. LAMBERTSEN, a distinguished scientist, medical doctor, inventor, environmentalist, pioneer in undersea and aerospace medicine, and professor at the University of Pennsylvania School of Medicine for his entire adult life, died on February 11, 2011, at the age of 93. He excused himself from daily activities at the university only in the past several years, when he was forced to slow down because of physical incapacitation. He was held in especially high regard by the U.S. Navy SEALs, who considered him a friend, mentor, and “Father of U.S. Combat Swimming,” a title he very much appreciated. Dr. Lambertsen received a B.S. degree from Rutgers University in 1938 and his M.D. degree from the University of Pennsylvania in 1943. His extraordinary lifetime of accomplishments began during involvement with the Office of Strategic Services (OSS) during World War II when, as a 23-year-old medical student, he presented his invention of a self-contained underwater swimming apparatus. Once developed, it was called the Lambertsen Lung and eventually the Lambertsen Amphibious Respiratory Unit (or simply LARU). The LARU would enable a well-trained swimmer to work bubble-free underwater and thus operate around 151 Copyright National Academy of Sciences. All rights reserved. Memorial Tributes: Volume 16 152 MEMORIAL TRIBUTES objective areas without detection from above. -
Scuba Diving History
Scuba diving history Scuba history from a diving bell developed by Guglielmo de Loreno in 1535 up to John Bennett’s dive in the Philippines to amazing 308 meter in 2001 and much more… Humans have been diving since man was required to collect food from the sea. The need for air and protection under water was obvious. Let us find out how mankind conquered the sea in the quest to discover the beauty of the under water world. 1535 – A diving bell was developed by Guglielmo de Loreno. 1650 – Guericke developed the first air pump. 1667 – Robert Boyle observes the decompression sickness or “the bends”. After decompression of a snake he noticed gas bubbles in the eyes of a snake. 1691 – Another diving bell a weighted barrels, connected with an air pipe to the surface, was patented by Edmund Halley. 1715 – John Lethbridge built an underwater cylinder that was supplied via an air pipe from the surface with compressed air. To prevent the water from entering the cylinder, greased leather connections were integrated at the cylinder for the operators arms. 1776 – The first submarine was used for a military attack. 1826 – Charles Anthony and John Deane patented a helmet for fire fighters. This helmet was used for diving too. This first version was not fitted to the diving suit. The helmet was attached to the body of the diver with straps and air was supplied from the surfa 1837 – Augustus Siebe sealed the diving helmet of the Deane brothers’ to a watertight diving suit and became the standard for many dive expeditions. -
Siebe Gorman
dr" www.mcdoa.org.uk The design is simple and strong, clamping mechanism has been ini proved, and the valve is made ( Imo corrosive chrome-Bladed brass. Safety AIR RESERVE VALVE The wets are fitted with 11,7401'N'I` Valve. in It cannot be left 11,14.1111,111111ty on `Reserve' when Lhe cylinder r, Comfort empty. '1'he valve has no cam no iou which can wear or jaw. HARNESS The new nylee welihnil harness is designed wilhotil, n i1iii.,1 strap, to make a wcir ld i„,i ) „„„.,, The Essgee 'Mistral' Aqualung by comfortable to weir. ' I' I rrin on Siebe, Gorman based on the famous quick-requick-release iiicl 1 1114 '11. Cousteau-Cagnan design has all the take off the set below Icny ) I li.. latest refinements that research has water, or jettison it i suggested and experiment realised. TWIN CYLINDER CONVERSION `§te DEMAND VALVE The double-lever You can convert, ,„101 ----4040aP action reduces opening resistance Aqualung into 41, twin sot, didolummolimosiiiiiiiiiill111111111111111111111111113mmi to a minimum, and the single stage * Write £0 Its fol. fall defisiln fif thy reduction gives maximum air-flow. Essgee 'Mistral'. N-7 The 5tebe, Gorman 'Mistral' - The World's most reliable Aqualung SIEBE, GORMAN & CO. LTD. E. Ng Neptune Works, Davis Road, `FILM MAKING'—see page 54 hit,8 Chessington, Surrey. SIEBE Telephone: Elmbridge 500() Iluommlimiliiiil 'ill? Manchester Office: 274, Deansgate. 1111111111!!!4""m41111111111111111111111111111111111111111IIIIIIIIIiiii mil IIII Telephone: Deanegate 6000 GORMAN • -^°1,0" oh, COA9D1 & CO I TD. PDD ID. www.mcdoa.org.uk Vol. 8 No. 2 H.M.S. -
Anastasi 2032
Shashwat Goel & Ankita Phulia Anastasi 2032 Table of Contents Section Page Number 0 Introduction 2 1 Basic Requirements 4 2 Structural Design 15 3 Operations 31 4 Human Factors 54 5 Business 65 6 Bibliography 80 Fletchel Constructors 1 Shashwat Goel & Ankita Phulia Anastasi 2032 0 Introduction What is an underwater base doing in a space settlement design competition? Today, large-scale space habitation, and the opportunity to take advantage of the vast resources and possibilities of outer space, remains more in the realm of speculation than reality. We have experienced fifteen years of continuous space habitation and construction, with another seven years scheduled. Yet we have still not been able to take major steps towards commercial and industrial space development, which is usually the most-cited reason for establishing orbital colonies. This is mainly due to the prohibitively high cost, even today. In this situation, we cannot easily afford the luxury of testing how such systems could eventually work in space. This leaves us looking for analogous situations. While some scientists have sought this in the mountains of Hawaii, this does not tell the full story. We are unable to properly fathom or test how a large-scale industrial and tourism operation, as it is expected will eventually exist on-orbit, on Earth. This led us to the idea of building an oceanic base. The ocean is, in many ways, similar to free space. Large swathes of it remain unexplored. There are unrealised commercial opportunities. There are hostile yet exciting environments. Creating basic life support and pressure-containing structures are challenging. -
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. -
A History of Closed Circuit O2 Underwater Breathing Apparatus
Rubicon Research Repository (http://archive.rubicon-foundation.org) A HISTORY OF CLOSED CIRCUIT OXYGEN UNDEnWATER BRDA'1'HIllG AJ'PARATU'S, by , Dan Quiok Project 1/70 School of Underwater Medicine, H MAS PENGUIN, Naval P.O. Balmoral, IT S W .... 2091. May, 1970 Rubicon Research Repository (http://archive.rubicon-foundation.org) TABLE OF CONTENTS. Foreword. Page No. 1 Introduction. " 2 General History. " 3 History Il: Types of CCOUBA Used In 11 United Kingdom. " History & Types of CCOUBA Used In 46 Italy. " History & Types o:f CCOUBJl. Used In 54 Germany. " History & Types of CCOUEA Used In 67 Frr>.!1ce. " History·& Types of CeOUM Used In 76 United States of America. " Summary. " 83 References. " 89 Acknowledgements. " 91 Contributor. " 91 Alphabetical Index. " 92 Rubicon Research Repository (http://archive.rubicon-foundation.org) - 1 - FOREWORD I am very pleased to have the opportunity of introducing this history, having been responsible for the British development of the CCOt~ for special operations during World War II and afterwards. This is a unique and comprehensive summary of world wide development in this field. It is probably not realised what a vital part closed circuit breathing apparatus played in World War II. Apart from escapes from damaged and sunken submarines by means of the DSEA, and the special attacks on ships by human torpedoes and X-craft, including the mortal damage to the "Tirpitz", an important part of the invasion forces were the landing craft obstruction clearance units. These were special teams of frogmen in oxygen breathing sets who placed demolition charges on the formidable underwater obstructions along the north coast of France. -
Diving Safety Manual Revision 3.2
Diving Safety Manual Revision 3.2 Original Document: June 22, 1983 Revision 1: January 1, 1991 Revision 2: May 15, 2002 Revision 3: September 1, 2010 Revision 3.1: September 15, 2014 Revision 3.2: February 8, 2018 WOODS HOLE OCEANOGRAPHIC INSTITUTION i WHOI Diving Safety Manual DIVING SAFETY MANUAL, REVISION 3.2 Revision 3.2 of the Woods Hole Oceanographic Institution Diving Safety Manual has been reviewed and is approved for implementation. It replaces and supersedes all previous versions and diving-related Institution Memoranda. Dr. George P. Lohmann Edward F. O’Brien Chair, Diving Control Board Diving Safety Officer MS#23 MS#28 [email protected] [email protected] Ronald Reif David Fisichella Institution Safety Officer Diving Control Board MS#48 MS#17 [email protected] [email protected] Dr. Laurence P. Madin John D. Sisson Diving Control Board Diving Control Board MS#39 MS#18 [email protected] [email protected] Christopher Land Dr. Steve Elgar Diving Control Board Diving Control Board MS# 33 MS #11 [email protected] [email protected] Martin McCafferty EMT-P, DMT, EMD-A Diving Control Board DAN Medical Information Specialist [email protected] ii WHOI Diving Safety Manual WOODS HOLE OCEANOGRAPHIC INSTITUTION DIVING SAFETY MANUAL REVISION 3.2, September 5, 2017 INTRODUCTION Scuba diving was first used at the Institution in the summer of 1952. At first, formal instruction and proper information was unavailable, but in early 1953 training was obtained at the Naval Submarine Escape Training Tank in New London, Connecticut and also with the Navy Underwater Demolition Team in St. -
Beach Nourishment Techniques: Report 1: Dredging Systems For
BEACH NOURISHMENT TECHNIQUES R ep ort I DREDGING SYSTEMS FOR BEACH NOURISHMENT FROM OFFSHORE SOURCES by Thomas W. Richardson Hydraulics Laboratory U. S. Army Engineer Waterways Experiment Station P. O. Box 631, Vicksburg, Miss. 39180 September 1976 Report I of a Series Approved For Public Release; Distribution Unlimited TA 7 Prepared for Office, Chief of Engineers, U. S. Army .W34t Washington, D. C. 2 0 3 14 H-76-13 1976 Voi. 1 C . 3 BUREAU OF RECLAMATION LIBRARY DENVER, CO Destroy this report when no longer needed. Do not return it to the originator. P.yi!P.A.y .P f RECLAMATION DENVER LIBRARY 92071163 o'5 i Unclassified SECURITY CLASSIFICATION OF THIS PAGE (When Date Entered) READ INSTRUCTIONS REPORT DOCUMENTATION PAGE BEFORE COMPLETING FORM 1. REPORT NUMBER 2. GOVT ACCESSION NO. 3. RECIPIENT’S CATALOG NUMBER Technical Report H-76-13 4 . T I T L E (and Subtitle) 5. TYPE OF REPORT & PERIOD COVERED BEACH NOURISHMENT TECHNIQUES; Report 1, DREDGING SYSTEMS FOR BEACH NOURISHMENT Report 1 of a series FROM OFFSHORE SOURCES 6. PERFORMING ORG. REPORT NUMBER 7. A U TH O R fsj 8. CONTRACT OR GRANT NUMBERS Thomas W. Richardson 9. PERFORMING ORGANIZATION NAME AND ADDRESS 10. PROGRAM ELEMENT, PROJECT, TASK AREA & WORK UNIT NUMBERS U. S. Army Engineer Waterways Experiment Station Hydraulics Laboratory P. 0. Box 631, Vicksburg, Miss. 39180 11. CONTROLLING OFFICE NAME AND ADDRESS 12. REPORT DATE September 1976 Office, Chief of Engineers, U. S. Army Washington, D. C. 2031** 13. NUMBER OF PAGES 83 1 4 . MONITORING AGENCY NAME & ADDRESSfi/ different from Controlling Office) 15. -
Spacesuits Have Been Created, but We Want to Go Further
Science and Innovation A Boeing/Teaching Channel Partnership EXTREME BIOSUITS Student Handbook Science and Innovation Extreme Biosuits Student Handbook Engineering Design Process Step 1 Identify the Need or Problem Describe the engineering design challenge to be solved. Include the limits and constraints, customer description, and an explanation of why solving this challenge is important. Step 2 Research Criteria and Constraints Research how others have solved this or similar problems, and discover what materials have been used. Be sure to thoroughly research the limitations and design requirements for success. Step 3 Brainstorm Possible Solutions Use your knowledge and creativity to generate as many solutions as possible. During this brainstorming stage, do not reject any ideas. Step 4 Select the Best Solution Each team member presents their solution ideas to the team. Team members annotate how each solution does or does not meet each design requirement. The team then agrees on a solution, or combination of solutions, that best meets the design requirements. Step 5 Construct a Prototype Develop an operating version of the solution. Step 6 Test Test your solution. Annotate the results from each test to share with your team. Step 7 Present Results Present the results from each test to the team. Step 8 Redesign Determine a redesign to address failure points and/or design improvements. The design process involves multiple iterations and redesigns. Redesign is based on the data from your tests, your team discussions as to the next steps to improve the design, and the engineering design process Steps 1 through 7. Once your team is confident of a prototype solution, you present the results to the client. -
Mark V Diving Helmet
Historical Diver, Number 5, 1995 Item Type monograph Publisher Historical Diving Society U.S.A. Download date 06/10/2021 19:38:35 Link to Item http://hdl.handle.net/1834/30848 IDSTORI DIVER The Offical Publication of the Historical Diving Society U.S.A. Number 5 Summer 1995 "Constant and incessant jerking and pulling on the signal line or pipe, by the Diver, signifies that he must be instantly pulled up .... " THE WORLDS FIRST DIVING MANUAL Messrs. C.A. and John Deane 1836 "c:lf[{[J a:tk o{ eadz. u.adn l;t thi:1- don't di£ wllfzoul fz.a1Jin5 Co't'towe.J, dofen, pwu!.hau:d O'l made a hefmd a{ :toorh, to gfimju.e (o'r. !JOU'tul{ thl:1 new wo'l.fJ''. 'Wifl'iam 'Bube, "'Beneath 'J,opic dlw;" 1928 HISTORICAL DIVING SOCIETY HISTORICAL DIVER MAGAZINE USA The official publication of the HDSUSA A PUBLIC BENEFIT NON-PROFIT CORPORATION HISTORICAL DIVER is published three times a year C/0 2022 CLIFF DRIVE #119 by the Historical Diving Society USA, a Non-Profit SANTA BARBARA, CALIFORNIA 93109 U.S.A. Corporation, C/0 2022 Cliff Drive #119 Santa Barbara, (805) 963-6610 California 93109 USA. Copyright© 1995 all rights re FAX (805) 962-3810 served Historical Diving Society USA Tel. (805) 963- e-mail HDSUSA@ AOL.COM 6610 Fax (805) 962-3810 EDITORS: Leslie Leaney and Andy Lentz. Advisory Board HISTORICAL DIVER is compiled by Lisa Glen Ryan, Art Bachrach, Ph.D. J. Thomas Millington, M.D. Leslie Leaney, and Andy Lentz. -
Compressed Air Engine Swadhinpatnaik Dept
ISSN : 2249-5762 (Online) | ISSN : 2249-5770 (Print) IJRMET VOL . 5, ISSU E 2, MAY - OC T 2015 Compressed Air Engine SwadhinPatnaik Dept. of Mechanical engineering, SRM University, Chennai, India Abstract II. Components This paper work deals with the Compressed-air engine as a • CYLINDER pneumatic actuator that converts one form of energy into another. • PISTON The Air Driven Engine is an eco-friendly engine which operates • COMBUSTION CHAMBER with compressed air. This Engine uses the expansion of compressed • ONNECTING ROD air to drive the pistons of the engine. An Air Driven Engine is • CRANKSHAFT a pneumatic actuator that creates useful work by expanding • CAMSHAFT compressed air. There is no mixing of fuel with air as there is no • CAM combustion. An Air Driven Engine makes use of Compressed Air • PISTON RINGS Technology for its operation The Compressed Air Technology is • GUDGEON PIN quite simple. If we compress normal air into a cylinder the air • INLET would hold some energy within it. This energy can be utilized for • EXHAUST MANIFOLD useful purposes. When this compressed air expands, the energy is • INLET AND EXHAUST VALVE released to do work. So this energy in compressed air can also be • FLYWHEEL utilized to displace a piston. Compressed air propulsion may also be incorporated in hybrid systems, e.g., battery electric propulsion III. Engine Specifications and fuel tanks to recharge the batteries. This kind of system is called Type of fuel used : Petrol hybrid-pneumatic electric propulsion. Additionally, regenerative Cooling system : Air cooled braking can also be used in conjunction with this system. Number of cylinder : Single Number of stroke : Four Stroke Keywords Arrangement : Vertical Air, Compressed, Engine, Energy, Propulsion, Pneumatic Cubic capacity : 100 cc I.