| Diving underwater has been a common practice for | | | | re-breather sets. |
| many centuries. Human beings have been inclined to | | | | The two types of scuba equipment are the |
| dive for various reasons. These include for finding | | | | "open-circuit" or aqua-lung scuba, which was created |
| artifacts and jewels, engaging in warfare, searching | | | | by Jacques-Yves Cousteau and the "closed-circuit" or |
| for shipwrecks and for understanding deepwater | | | | re-breather type scuba. Scuba divers wear this |
| marine life. However, diving underwater was far more | | | | equipment in order to stay under water for long |
| hazardous in earlier times. These endeavors were | | | | periods of time. Nowadays, scuba diving is used for |
| anxiety producing and short, as the availability of | | | | commercial, scientific, and military reasons as well. |
| oxygen for breathing was limited. | | | | Diving is used to assist research on new business |
| In earlier times, people residing in remote regions | | | | undertakings, such as ocean oil drilling and bridge |
| would dive with the help of seaweed and chords tied | | | | construction. Scientists also make use of scuba |
| around their waists. One can attribute this to the fact | | | | equipment to study the numerous mechanisms of |
| that they have spent years learning to hold their | | | | aquatic ecological science. Special forces in the military |
| breath underwater for long periods of time. This is a | | | | are trained as scuba divers to provide the United |
| dangerous venture and should not be attempted by | | | | States military with scuba proficiency if required. |
| anyone. | | | | Assisted by a scuba set, professionals and amateurs |
| Scuba derives its name from the usage of a | | | | can watch and learn about underwater life with ease. |
| self-contained underwater breathing apparatus known | | | | The invention of scuba gear has made it possible for |
| as scuba. A scuba set provides the diver with the | | | | men to dive effortlessly to the ocean floor, in search |
| breathing gas that is necessary to breathe | | | | of shipwrecks, marine life and microscopic |
| underwater. This enables scuba divers to enjoy safe | | | | underwater organisms – or to simply dive for |
| and long dives, distinguishing it from plain underwater | | | | pleasure. Whether one dives for recreation or |
| diving. The word scuba was first used in 1939 by the | | | | business, scuba is a vital tool that allows a diver to |
| US Navy to refer to US military divers’ | | | | spend long periods underwater. |