"Many people think that space is our final frontier – and that is not entirely true. While it is more difficult to get to outer space, we probably know more about the various planets and environments in space than we do about what lies beneath the surface of our oceans ..." The Ocean – Our Most Unexplored Frontier Many people think that space is our final frontier – and that is not entirely true. While it is more difficult to get to outer space, we probably know more about the various planets and environments in space than we do about what lies beneath the surface of our oceans. Just as in outer space, there is a whole environment, or ecosystem, under the waters that cover 75% of our planet, with 70% of our planet being ocean waters. Beneath those waters there really is an entirely new world -a world full of beauty and mystery that few humans have the opportunity to experience. But the lucky few who do have the opportunity to experience this vast under water world are able to do so because they are scuba divers. Obviously, human beings cannot breathe underwater, so instead, they rely on a portable respiratory system that is self contained. In fact, that is what the word Scuba means: Self Contained Underwater Breathing Apparatus. This apparatus allows human beings to dive to depths that were once unthinkable, and to stay under the water for long periods of time, depending on how full the air tank is. Different mixtures of gasses are used in the air tank, depending on the length and depth of the planned dive. Forages into this underwater world have become increasingly popular, especially since Scuba diving equipment makes it so easy. Now, if there is an ocean nearby, you can bet there are scuba divers, scuba lessons, and scuba diving clubs in the vicinity as well. There are even scuba diving clubs that are not located near oceans. These clubs plan trips around the world to go scuba diving in different oceans! When you see the beauty that lives so peacefully under the water, it isn’t any wonder why scuba diving is so popular. In fact, it is a world that is so amazing and breath taking that you will want to make an under water camera part of your essential dive equipment. While no sport suits everyone, most people who try scuba diving are hooked after their very first dive. Most people are looking forward to their next dive before they ever return home from the last dive. In our fast paced world, scuba diving offers the ultimate in relaxation and stress relief. Imagine a world where there are no phones, no palm pilots – and no rush. You leave a world that is noisy, and enter a world where the only real noises you will hear are the bubbles from your scuba gear. In this world, you are only limited by the amount of air in your tank. The History of Scuba Diving As far back as recorded history goes, people have been drawn to and mystified by the ocean. Before the industrial age, however, if one wanted to explore what was beneath the surface of the ocean, one had to hold his or her breathe, and obviously, could only explore for as long as they could hold their breathe. The ocean has always provided human beings with a source of food, and since man discovered this, he has been working on ways to better explore that underwater world. Initially, humans held their breath to either explore or gather food, but eventually, hollow reeds were used. These reeds allowed swimmers to keep their heads under the surface, where they could view the underwater life to an extent, for an indefinite period of time. However, using hollow reeds would not allow the swimmer to submerge more than a couple of feet. Next, divers tried to use air bags. Unfortunately, this could not work because the air that was being breathed in from the bag was being exhaled back into the bag, and then inhaled again, causing the diver to breath in carbon dioxide. Air bags were followed by diving bells in the 16th century. The bottom portion of the bell contained water, but the upper portion contained air. The diver could hold his breathe to dive, then return to the bell to rest and get air. It wasn’t until 1825 when William H. James made a huge advancement in the diving world. He designed a diving suit that was self contained and had compressed air, which was in an iron container that was to be strapped around one’s waist. In 1829, Charles and John Deane improved on this design, presenting the first air-pumped diving helmet to the world. As time marched on, divers kept improving on the older systems, and by 1865, the first diving regulator had been invented by Benoit Rouquayrol and Auguste Denayrouze. Unfortunately, the equipment was all still so heavy that the diver did not actually dive into the ocean – he walked. By 1879 the first known rebreather was being used, and by 1905 the first rebreather that had metering valves that allowed for control of the oxygen supply was invented. By 1926, divers were actually swimming, instead of walking on the seabed floor, and in the 1930’s Guy Gilpatrick of France was swim diving with waterproof goggles. Swim fins also arrived on the scene, again in France. Grab Your Copy For Only . . . $9.95 I know you will get something from this well written eBook! Remember: Knowledge is power - And Great Knowledge is Powerful. When reading an eBook can MOVE you - Isn’t that feeling worth the price of the wonderful read? ENJOY! APPLY! SHARE!

2.99 USD InStock