Scuba Diving “People have been diving ever since primitive man was forced to collect food from the sea,” says HawaiiScubaDiving.com (“History of Scuba Diving”, HawaiiScubaDiving.com Internet). Man has always been curious about the underwater world and has sought to explore it. This drove man to come up with new ways to extend his reach into the underwater world and to make the trip less difficult. Over time underwater exploration has been made easier due to man’s passion for exploring a fascinating new underwater world. Inventions such as regulators, self-contained breathing apparatuses, oxygen tanks, neoprene suits, and many more technologies have been used to make underwater exploration as easy and efficient as possible. Scuba diving has evolved into a wide range of advanced technology for the average person to explore a whole new underwater world. People have been diving since about 4500 BC. Greeks, Mesopotamians, Chinese, and many others dove for food, commerce, and warfare (Cooper). Searching the sea bed for food was the main reason that drove people to dive. Modern man knows this because ancient drawings depict people diving. Ancient artifacts have been discovered in Greece that show divers partaking in military endeavors and searching the ocean floor for sponges (“History of Scuba Diving”, ScubaSoul.com Internet). In 414 BC, the first record of diving being used in warfare was in the siege of Syracuse by Greeks. “The origins and history of scuba diving can be traced back centuries. Before the apparatus for the sport was invented, men and women had practiced holding their breath while being submerged underwater”, says Ed J. Price, a diver from scubasoul.com (“History of Scuba Diving”, ScubaSoul.com Internet). Primitive... ... middle of paper ... ... “Into the liquid world: from its origins in improvised homemade gear and underwater military espionage to its position today as a worldwide leisure and tourism industry, scuba diving has certainly come a long way. Tim Ecott explores the history of our mission to conquer the underwater world.” Geographical Aug. 2005:54+. Student Edition. 3 Nov. 2009 . “History of Scuba Diving.” HawaiiScubaDiving.com. 2 Nov. 2009 . “History of Scuba Diving.” ScubaSoul.com. 25 Dec. 2008. 2 Nov. 2009 . Vallintine, Reg. “Hooked, line and sinker.” Geographical Aug. 1999:72. Student Edition. 3 Nov. 2009 .
Archaeology is a continuously evolving field where there is a constant stream of new branches and excavation methods. Due to the influx of new technologies and innovations in recent decades, archaeologists have been able to excavate previously inaccessible areas. For example, new diving equipment and tools such as proton magnetometers, side-scan sonar, sub-bottom profiler, and miniature submarines have allowed archaeologists to dive into the deep depths of the ocean. As a result, the branch of underwater archaeology was created to search for shipwrecks and other artifacts on the ocean floor. Underwater archaeology’s role has increased in recent years as it allows archaeologists to more accurately interpret the past by supplementing information gained through traditional land excavations.
The First five weeks the student’s learn life saving, knot tying, underwater knot tying, basic first aid, and surf passages in small inflatable boats. Along with this is a 50-yard underwater swim, which must be completed and the students are often revived when they pass out. Also throughout out the whole six months of BUD/S (Basic Underwater Demolition School), the Seal Teams go through many torturous events and lessons. One of these being surf torture. This is where the entire class must wade into the surf zone to their waistline, then sit down with arms linked. Just to let you know the water in Coronado, California never gets above sixty-eight degrees during the summer and fifty-eight degrees during the winter. There the men with linked arms will sit there for hours at a time, soon the cold sucks out all of their body warmth and the whole class is shivering in unison as the waves crash over there heads.
Divers cannot put the equipment on and immediately dive in. Before diving there are a series of procedures the diver and their partners must do before going down. In addition, the further down the diver dives the more pressure pressing down on the diver which lessens the amount of oxygen in the scuba tank. Therefore, the further down the diver dives the less time the diver can spend on the bottom. But now, by far the largest group of divers is “Recreational Divers”. These dives are practiced at depths of less than 130 feet, from these depths, divers can make a straight ascent to the surface. Diving beyond this limit requires advanced training. Also, when diving the diver must take into account the amount of time spent descending and ascending in the water. If the diver descends too quickly the pressure can deflate their lungs and cause problems. Similarly, if they ascend too quickly nitrogen bubbles can form under the diver’s skin causing bends or decompression sickness. This sickness can be extremely harmful and possibly fatal. Lastly, a dive watch or computer is needed to calculate the amount of oxygen left in their tank and the depth. Dive computers help the divers be aware of their conditions and keep them
Review: The opportunity and endeavor of exploring the Earth’s oceans can reap great rewards for mankind and unravel many of the mysteries that the Earth has left to discover.
Schroeder, Richard C. “Should We Scuttle the Admiral of the Ocean Sea?” The Times of the Americas. 29 May 1991: 20+. (CIRS Schroed1.ART)
Princeton University Press. “The Extreme Life of the Sea.” princeton.edu. Princeton University Press. 11 Feb. 2014 Web. 12 Feb. 2014.
Scuba diving is an activity enjoyed by people all over the world. Scientists use it to study underwater life, police use it to train in case of emergencies, and many others do it just for fun. What many people don't know, though, is that scuba diving would be impossible without physics. Pressure, buoyancy, and force are big parts of diving.
Cousteau, J. Y. 1985. The Ocean World. Harry N. Abrams, Inc., New York, NY, pp. 174-175.
"Oceans." Opposing Viewpoints Online Collection. Detroit: Gale, 2014. Opposing Viewpoints in Context. Web. 8 May 2014.
For over one hundred and fifty years inquiries and research projects, some more beneficial than others, have been made into the preserved remains of lake dwellings found across Europe. The unique discoveries of pile dwellings in Lake Zurich in 1854 ignited the frantic search for more prehistoric sites, attracting interest from antiquarians seeking to better our understanding of the past (Menotti, 2004). Hundreds of new sites were found and the works of early archaeologists like Munro and Keller provided a written record for the future. Ethnographic sources from the latter half of the 19th Century shaped the early interpretations, creating a romantic picture of Neolithic societies that inhabited these lacustrine dwellings (Fig. 1). It would be over fifty years before these theories could be contested, with the development of scientific and archaeological techniques that allowed for professional research to be conducted. Diving opened up the possibility of surveying and excavating underwater sites without having to remove the water and its preservative characteristics. Mainstream archaeologists still find it difficult to accept that archaeological work can be successfully performed underwater, but the methods and techniques used to survey and excavate the lake dwellings of Scotland have proved the contrary.
Diving is the sport of jumping or falling into water from a platform or springboard, usually while performing acrobatics. It is said that there are two categories of divers they 're those who perform with magnificent skill, grace, beauty, and courage then there is Greg Louganis. He was born in San Diego, California in 1960 was adopted by Peter and Frances Louganis as a young boy Greg faced a lot of obstacles. He had a very difficult relationship with his father who was abusive towards him in a physical way. Greg was also suffering in the eyes of his peers who would make fun of him because of his dyslexia. Soon he began to head into the direction of sports he figured out that he excelled amazingly in any sport he took dance and gymnastics classes
2. Castro, Jose. THe Sharks of the North American Waters. Texas Univerisity Press: US, 1983.
...li, Brita. "Defender of the Seas." E: The Environmental Magazine 23.1 (2012): 18-25. Academic Search Premier. Web. 30 Oct. 2013.
Did u know that there is a lot of history behind Olympic swimming? It is amazing how much history there is behind it. According to http://www.olympic.org/swimming-equipment-and-history. The swimming Olympics were started in 1896. The very first Olympic events were free style (crawl) or breaststroke. Backstroke was added in 1904. In the 1940s, breaststroke swimmers discovered they could go faster by bring both arms forward over their heads. Ur body is longer when you do that. This practice was immediately forbidden in breaststro...