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Special Amphibious Reconnaissance Corpsman
A Special Amphibious Reconnaissance Corpsman (SARC) is a United States Navy hospital corpsman who provides MARSOC and other USSOCOM units advanced trauma management associated with combatant diving and parachute entry. Traditionally, they are attached to the Marine Corps Force Reconnaissance companies to help support the Command Element of the Marine Air-Ground Task Force in special reconnaissance missions. Mission SARCs are trained and specialized in the same aspects of special operations as their counterparts: amphibious entry, deep recon and direct action. They are also capable of conducting detailed underwater ship-bottom searches. During operational status, the teams will then be dispersed evenly throughout the Marine Recon platoons; usually one SARC per platoon. SARCs have regularly acted as a point man, sharp shooter, radio operator, or even the team leader in the Marine Recon teams/platoons. More recently, SARCs are being deployed with Marine Special Operations Co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Navy
The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the largest and most powerful navy in the world, with the estimated tonnage of its active battle fleet alone exceeding the next 13 navies combined, including 11 allies or partner nations of the United States as of 2015. It has the highest combined battle fleet tonnage (4,635,628 tonnes as of 2019) and the world's largest aircraft carrier fleet, with eleven in service, two new carriers under construction, and five other carriers planned. With 336,978 personnel on active duty and 101,583 in the Ready Reserve, the United States Navy is the third largest of the United States military service branches in terms of personnel. It has 290 deployable combat vessels and more than 2,623 operational aircraft . The United States Navy traces its origins to the Continental Navy, which was established during the American Revo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deep Reconnaissance
A long-range reconnaissance patrol, or LRRP (pronounced "lurp"), is a small, well-armed reconnaissance team that patrols deep in enemy-held territory.Ankony, Robert C., ''Lurps: A Ranger's Diary of Tet, Khe Sanh, A Shau, and Quang Tri,'' revised ed., Rowman & Littlefield Publishing Group, Lanham, MD (2009)/ref> The concept of scouts dates back to the origins of warfare itself. However, in modern times these specialized units evolved from examples such as Rogers' Rangers in colonial British America, the Lovat Scouts in World War One, the Long Range Desert Group and the Special Air Service in the Western Desert Campaign and North West Europe, similar units such as Force 136 in East Asia, and the special Finnish light infantry units during the Second World War. Postwar, the role was carried in various North Atlantic Treaty Organization (NATO) and British Commonwealth countries by units that could trace their origins to these wartime creations such as the British SAS, Australia's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phlogiston Theory
The phlogiston theory is a superseded scientific theory that postulated the existence of a fire-like element called phlogiston () contained within combustible bodies and released during combustion. The name comes from the Ancient Greek (''burning up''), from (''flame''). The idea was first proposed in 1667 by Johann Joachim Becher and later put together more formally by Georg Ernst Stahl. Phlogiston theory attempted to explain chemical processes such as combustion and rusting, now collectively known as oxidation. It was challenged by the concomitant weight increase, and was abandoned before the end of the 18th century following experiments by Antoine Lavoisier and others. Phlogiston theory led to experiments which ultimately concluded with the discovery of oxygen. Theory Phlogiston theory states that ''phlogisticated'' substances contain phlogiston and that they ''dephlogisticate'' when burned, releasing stored phlogiston which is absorbed by the air. Growing plants then absor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Breathing Gas
A breathing gas is a mixture of gaseous chemical elements and compounds used for respiration. Air is the most common and only natural breathing gas, but other mixtures of gases, or pure oxygen, are also used in breathing equipment and enclosed habitats such as scuba equipment, surface supplied diving equipment, recompression chambers, high-altitude mountaineering, high-flying aircraft, submarines, space suits, spacecraft, medical life support and first aid equipment, and anaesthetic machines. Oxygen is the essential component for any breathing gas, at a partial pressure of between roughly 0.16 and 1.60 bar at the ambient pressure. The oxygen is usually the only metabolically active component unless the gas is an anaesthetic mixture. Some of the oxygen in the breathing gas is consumed by the metabolic processes, and the inert components are unchanged, and serve mainly to dilute the oxygen to an appropriate concentration, and are therefore also known as diluent gases. Most ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diving Physics
Diving physics, or the physics of underwater diving is the basic aspects of physics which describe the effects of the underwater environment on the underwater diver and their equipment, and the effects of blending, compressing, and storing breathing gas mixtures, and supplying them for use at ambient pressure. These effects are mostly consequences of immersion in water, the hydrostatic pressure of depth and the effects of pressure and temperature on breathing gases. An understanding of the physics is useful when considering the physiological effects of diving, breathing gas planning and management, diver buoyancy control and trim, and the hazards and risks of diving. Changes in density of breathing gas affect the ability of the diver to breathe effectively, and variations in partial pressure of breathing gas constituents have profound effects on the health and ability to function underwater of the diver. Aspects of physics with particular relevance to diving The main laws of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyperbaric Medicine
Hyperbaric medicine is medical treatment in which an ambient pressure greater than sea level atmospheric pressure is a necessary component. The treatment comprises hyperbaric oxygen therapy (HBOT), the medical use of oxygen at an ambient pressure higher than atmospheric pressure, and therapeutic recompression for decompression illness, intended to reduce the injurious effects of systemic gas bubbles by physically reducing their size and providing improved conditions for elimination of bubbles and excess dissolved gas. The equipment required for hyperbaric oxygen treatment consists of a pressure chamber, which may be of rigid or flexible construction, and a means of delivering 100% oxygen. Operation is performed to a predetermined schedule by trained personnel who monitor the patient and may adjust the schedule as required. HBOT found early use in the treatment of decompression sickness, and has also shown great effectiveness in treating conditions such as gas gangrene and carbon mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naval Special Warfare Development Group
The Naval Special Warfare Development Group (NSWDG), abbreviated as DEVGRU ("Development Group") and commonly known as SEAL Team Six, is the United States Navy component of the Joint Special Operations Command (JSOC). The unit is often referred to within JSOC as Task Force Blue. DEVGRU is administratively supported by Naval Special Warfare Command and operationally commanded by JSOC. Most information concerning DEVGRU is designated as classified, and details of its activities are not usually commented on by either the United States Department of Defense or the White House. Despite the official name changes, "SEAL Team Six" remains the unit's widely recognized moniker. DEVGRU and its Army and Air Force counterparts, Delta Force and 24th Special Tactics Squadron, are the U.S. military's primary Tier 1 special mission units tasked with performing the most complex, classified, and dangerous missions directed by, until 2002, the National Command Authority, and since then, directly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naval Special Warfare
The United States Naval Special Warfare Command (USNSWC), also known as (NAVSPECWARCOM and WARCOM), is the naval component of United States Special Operations Command, the unified command responsible for overseeing and conducting the nation's special operations and missions. Originating in the unconventional naval units formed during the Second World War, WARCOM was established on 16 April 1987 at Naval Amphibious Base Coronado in San Diego, California. Its mission is to provide leadership, doctrinal guidance, resources and oversight to special operations carried out in maritime and littoral environments. WARCOM specializes in a broad range of tactical areas, including unconventional warfare, direct action, counterterrorism, special reconnaissance, and personnel recovery. WARCOM is organized primarily around eight Navy SEAL teams, three Special Boat Teams, and various supporting commands, totaling approximately 9,200 personnel. Units can operate independently, as part o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marine Special Operations Command
United States Marine Forces Special Operations Command (MARSOC) is a component command of the United States Special Operations Command (SOCOM) that comprises the Marine Corps' contribution to SOCOM. Its core capabilities are direct action, special reconnaissance and foreign internal defense. MARSOC has also been directed to conduct counter-terrorism and information operations. History and lineage Its creation was announced on 23 November 2005 by U.S. Defense Secretary Donald Rumsfeld, following a meeting between him, the SOCOM commander General Bryan D. Brown, and the Marine Corps Commandant General Michael Hagee on 28 October 2005. MARSOC was officially activated on 24 February 2006 with ceremonies at Camp Lejeune, North Carolina. The potential participation of the Marine Corps in SOCOM has been controversial since SOCOM was formed in 1986. At the time, Marine Corps leaders felt that their Force Reconnaissance (FORECON) units were best kept in the Marine Corps' Marine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Team Leader
A team leader is a person who provides guidance, instruction, direction and leadership to a group of individuals (the team) for the purpose of achieving a key result or group of aligned results. Team leaders serves as the steering wheel for a group of individuals who are working towards the same goal for the organisation. The team leader monitors the quantitative and qualitative achievements of the team and reports results to a manager. The leader often works within the team, as a member, carrying out the same roles but with the additional 'leader' responsibilities – as opposed to higher-level management which often has a separate job role altogether. In order for a team to function successfully, the team leader must also motivate the team to "use their knowledge and skills to achieve the shared goals". When a team leader motivates a team, group members can function in a goal-oriented manner. A "team leader" is also someone who has the capability to drive performance within a gr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radio Operator
A radio operator (also, formerly, wireless operator in British and Commonwealth English) is a person who is responsible for the operations of a radio system. The profession of radio operator has become largely obsolete with the automation of radio-based tasks in recent decades. Nevertheless, radio operators are still employed in maritime and aviation fields. In most cases radio transmission is now only one of several tasks of a radio operator. In the United States, the title of Certified Radio Operator is granted to those who pass a test issued by the Society of Broadcast Engineers. The role of 'Wireless Operator' aboard aircraft during WWII was often abbreviated to 'WOp' or 'WOP' in official documents or obituaries. See also * Wireless telegraphy * Wireless (other) Wireless refers to the transfer of information signals without using wires. The term may also refer to: Electronic communications * Wireless LAN, a wireless local-area computer network * Wirel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marksman
A marksman is a person who is skilled in precision shooting using projectile weapons (in modern days most commonly an accurized scoped long gun such as designated marksman rifle or a sniper rifle) to shoot at high-value targets at longer-than-usual ranges. The proficiency in precision shooting is known as a shooter's marksmanship, which can be used to describe both gunnery and archery. Description In common usage, "sharpshooter" and "marksman" are synonyms. Within the specialized fields of shooting sports and military usage, however, sharpshooter and marksman each refer to different levels of skill. Specifically, in the US Army, "marksman" is a rating below "sharpshooter" and "expert". Four levels of skill are generally recognized today in American military and civilian shooting circles: unqualified, marksman, sharpshooter, and expert. Marksmanship badges for the three qualified levels are commonly awarded to both civilian and military shooters who attain proficiency in sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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