The Underwater World "There you are, totally weightless, quietly soaring just above the sea floor with only the smallest amount of physical exertion. Small fish come out of their holes to look at you. How about that? You are the curiosity. You are the thing that does not belong. Perhaps this is why you dive. You are taking part in exploring man's last ecological frontier. The very thought would excite anyone whose blood still flows in his veins. The diver is the observer, he looks at everything he can. He totally forgets the outside world" (Reseck 4). When I first read this piece, I got goosebumps. For years man has explored this vast universe, spending millions of dollars, and only making a tiny scratch on its surface. For me, to be able to explore a world completely different from mine sounds like an opportunity of a lifetime. When I had to choose a topic for my senior project, scuba diving was the most compelling of all. This paper is about the development and use, the techniques, and the physiological concerns of scuba diving. Man underwater dates all the way back to the Iliad, but sports diving for fun and for a profession is fairly new. If one has ever been underwater, he should know that breathing is impossible. In the early 1940's, Jaques Yves-Cousteau, a Frenchman, developing something that is now a very important asset to scuba diving. It is known to us as a "regulator." The regulator conserved air by releasing only the amount of air the Korell 2 diver needed to breathe. This increased the time the diver could stay down on one tank of air to about one hour if he were in shallow depths. Cousteau's regulator was simple and inexpensive and marked the beginning of the sport of scuba diving. The sport grew somewhat slo... ... middle of paper ... ...ery complex topic due to the scientific side of it. There are many scientific laws and there are many restrictions related to it. The only drawback of learning how to scuba dive is the cost. But if you are willing to spend about $450 and want to learn Korell 9 a lot more about scuba diving than the underwater portion, then by all means--go ahead. After all, it is a completely different world down there. Bibliography: Bibliography Counsilman and Drinkwater. Beginning Skin and Scuba Diving. Belmont, CA: Wadsworth Publishing Company, Inc. 1964. Griffiths, Tom. Sport Scuba Diving in Depth. Princeton, NJ: Princeton Book Co., Publishing. 1985. NAUI--Adventures In Scuba Diving. St. Louis, MO: Mosby--Year Book, Inc. 1995. Nonnelly, Doug. Personal Interview. 1 Nov. 1998. Reseck, John. Scuba--Safe and Simple. Englewood Cliffs, NJ: Prentice Hall, Inc. 1975.
Sharks have also been subjected to medical research, games and competitions, jewellery, souvenirs and cosmetics. We need to take into consideration that sharks play a vital role in the natural world that we live in. it is imperative that we look after these majestic creatures and ensure they remain protected. We need to be aware of the dangers of sharks, swim in protected areas where there are shark nets, and do not swim after dark in the sea (especially not alone) as the sea is the sharks home. Humans should also be wearing wet suits as protection in the ocean. The sea is where they live, they swim freely and they eat – they do not particularly target humans but rather prey on food that is available to them in their habitat.
For 50 years SeaWorld has entertained park guests with numerous stunts involving the majestic sea creature, the orca, also referred to as the killer whale, and their human trainers. What the on-lookers don’t see at these shows is what goes on behind the scenes: how the whales got there in the first place, and the conditions in which they are housed.
My vomit clouded the ocean surface with a purple-brown color before fading below the depths. On the other side of the vessel, I re-equipped my mask and plunged into the water to be greeted by my aunt – she was to be my snorkeling partner as she had much experience in the depths of Hawaii. When I submerged my head it was almost as if I had entered a new world. This unseen dimension housed a coral reef that vibrantly shone with a mixture of bright reds and deep blues. The reef almost seemed to pulsate as thousands of fish darted in and out of their subterranean homes. The water was thick with salt and teemed with plankton. We often resurfaced to point out fish to each other. I remember my aunt telling me of the environmental dangers of touching the still-living coral. “If you pierce its skin it will likely become infected and die, and all of the fish who live in it will die too,” she expertly explained. From then on I kept my distance to at least 5-6
The ocean swells around you like a dust devil in a sandbox. Salt water fills your nostrils. The ship that deemed this fate upon you sails into the distance. You wonder, how am I going to get out of this one? Suddenly, a large metal object plants itself beneath your feet. A porthole opens and men carry you inside the belly of the large iron beast floating nether you. What’s going to happen now? In Jules Verne’s Twenty Thousand Leagues Under the Sea, this is exactly what main characters M. Aronmax, his servant Conseil, and Ned Land the harpooner, were thinking. After a hefty six-hour wait of being locked in a dark cell, the door opens. A man who introduces himself as Captain Nemo, an obvious leader and a man of stature, claims to have built the submersible in order to travel the world without ever having to step back on the land which he so greatly rejects. Reflection on the qualities of leadership reveals how Captain Nemo’s character enabled him to do exactly this.
Gooden, Brett A. 1994. Mechanism of the Human Diving Response. Integrative Physiological and Behavioral Science, Vol. 29 Issue 1 pg 6-16.
There are an estimated 8,000 deaths per year in the United States from drowning. Near-drowning occurs anywhere from 2-20 times more frequently (for estimated 16,000-160,000 events per year)7. The definitions for drowning and near-drowning have for the longest time been very confusing to understand. Recent health officials have attempted to resolve some of this confusion by redefining drowning as “the process of experiencing respiratory insufficiency or difficulty following a submersion or immersion in a body of liquid.” Near-drowning has also been redefined as “survival from a drowning event which involved impaired consciousness or water inhalation for 24 hours or more”2. Both near drowning and near-drowning occur when someone experiences a submersion event. A submersion event is when someone, in this case a pediatric patient, experiences an unexpected submersion in water. When an unexpected submersion, regardless of water type (salt or fresh) occurs, the individual experiences breath hold, panic, and a struggle to resurface1. Humans, naturally, can only hold their breath for a short period of time. This prolonged breath hold results in hypoxia and eventually leads to involuntary gasping. As the individual attempts to gasp for air they sometimes aspirate7. This paper will attempt to look at the clinical presentation of a near-drowning patient who has suffered from a submersion event.
In “Chapter 6 – The Sea Around Us” of Elizabeth Kolbert’s The Sixth Extinction: An Unnatural History, the author reveals the fact that the ocean is acidifying due to human activities, such as burning fossil fuels and deforestation. In this chapter, Kolbert notes that there was a lack of biodiversity near the vents at Castello Aragonese in order to present the oceans’ future possibility. One of the types of sea creatures that ocean acidification would devastate are the calcifiers, which are organisms that create shells or skeletons made of calcium carbonate (Kolbert 117-122). Credible sources of information, such as the EPA and the Smithsonian Institution, agree that ocean acidification poses a serious threat to marine calcifiers,
said, “Every time you dive, you hope you'll see something new - some new species. Sometimes the ocean gives you a gift, sometimes it doesn't.” As you are swimming under the ocean, imagine the sparkle of the water as you look up the surface from a hundred feet below; floating along with the current, slowly and deeply breathing while observing the sea life. Continue to imagine the ability to remain underwater for an hour or more, just swimming and observing the ocean. This is the life of a scuba diver. Many people think of Scuba Diving as a swim in the water, but in reality it is a very dangerous, and potentially fatal sport and activity. There are many types of Scuba
3 James E. Counsilman and Brian E. Counsilman, The New Science of Swimming, (Englewood Cliffs: Prentice Hall, 1994) 6-7
Many people think of scuba diving as just a swim in the water, but in reality it is a very exciting, dangerous, and potentially fatal sport and activity. There are many types of scuba diving, ranging from recreational to sport to career diving. Scuba Diving is just not a swim in the water, scuba requires certification, uses technical equipment, and there is a lot of risk involved with scuba diving.
The affects of swimming on disabled people’s bodies’ physically is colossal due to the fact that water provides support, stability, and has numerous healing mechanisms. According to aquatic therapist Stacy Bintzler, “Water has four main features that are not offered through land activity: buoyancy, resistance, support and hydrostatic pressure” which allows for simple movement to be less painful and easier in comparison to the same movements on land (Bintzler). Water’s main components aid in the following ways: buoyancy, reduces stress on joints; resistance, buil...
I was the first to put my gear on, then I helped Uncle Bob put his gear on. Each of us had two full tanks of 3000 psi each, which was plenty for a dive, each of us brought eight-millimeter wetsuits that was perfect for the cold-water temperature. After final gear checking, Uncle Bob jumped in the water and gave a surface okay, I later jumped in. The water was cold for the first 2 minutes, then the wetsuit started to work and I was warm. We descended slowly, equalizing the pressure in our ears, because Uncle Bob was more experience he decided faster than I did. We reach the main mast at 80ft below sea level, before the dive Uncle Bob informed me that there will be shark, but I didn’t think there would be this many shark. Uncle Bob led the way down to the top deck of the ship, then we checked our air and depth. I had used 500psi out of 6000psi of my air and Uncle Bob used 1000psi of his 6000psi. Uncle Bob led his way around the ship, as I followed I noticed that the sharks began to take interest in us. As Uncle Bob and I went around the ship, he went through a hole on the bottom, as I followed him in I noticed that the ship was still mostly intact. We
Earth is the only planet in the Solar System that has liquid water. The ocean contains ninety seven percent of the earth’s water and covers almost three quarters of the planet. There are four different oceans, the Pacific, Atlantic, Indian, and the Arctic. Tides and currents occur in all three of these oceans. Many different kinds of fish and mammals also make their homes in these oceans. All of these oceans are connected to each other in some way. Humans find oceans to be very interesting, beautiful, and exploring.
Lastly, sea-walker diving is also a famous activity that provides participants opportunities to observe the underwater world in the underwater tourism industry. Compare to the snorkeling, sea-walker diving can provide tourist more time and chances to observe the marine organism and environment. There are many tourist willing to try sea-walker diving because the participants can join even they don't know swimming. ( Australia’s Great Barrier Reef is one of the most famous seawalker diving destinations of the world because of its high level water
"Swimming Introduction, Organizations, Strokes, Benefits, History, Tips and Information - MedicineNet." Swimming Strokes, Benefits, Classes, History, Tips and Information - MedicineNet. MedicineNet, 2014. Web. 27 Mar. 2014.