Showing posts with label PADI. Show all posts
Showing posts with label PADI. Show all posts

Tuesday, March 29, 2011

Scuba Basics and Knowledge for Non-Divers

Since I recently received a comment from a non-diver, I'd like to answer her questions, and provide other non-divers with some information about diving in general. Thanks for your interest, and I hope if you're interested in diving, this post can help you learn more and get started on training to dive!

Basics of Scuba
Scuba diving is all about swimming underwater for long periods of time to enjoy the underwater world. You can dive for an hour or more, depending on how deep you dive. The deeper you dive, the faster the oxygen in your tank gets used, because of the higher water pressure.


Scuba Certification

There are multiple organizations that provide scuba courses and certifications. For your first course, you will have to read all about scuba diving, safety regulations, rules, and the technical aspects of diving. You want to be sure and understand how your body changes as you dive! Here are agencies that you can take courses through:

To find a scuba shop to get PADI, NAUI, or PDIC scuba certified, search "PADI scuba in city, state" using Google or another search engine (change "PADI" to your preferred agency). There are more agencies than listed above, but these three are the most known. I trained using PADI, and it has been a great experience.

Scuba Equipment

To dive, you need items to help you navigate, breathe, and keep track of time and direction. The gear you will need includes personal gear and more expensive gear to rent at first.

Personal equipment you should purchase when you first start to dive:
  • Mask - basically goggles to cover your eyes and your nose
  • Snorkel - used for when you surface swim, to preserve your oxygen in your tank
  • Fins - the flippers for your feet to help you propel through water
  • Booties - the cloth-type shoes for your feet so the plastic fins don't give you blisters, and for use when exiting your dive. It is not easy to walk in fins, so the booties serve as walking shoes.
Personal Scuba Gear (Source: Snorkeling Packages Blog1)

Gear you can rent at first, and once you become a regular diver and can afford it, can purchase:
  • Oxygen Tank - the cylinder filled with compressed oxygen and some other gases, which is your source of breathing while diving.
  • BCD (Buoyancy Control Device) - a "vest" that you wear that allows you to carry your oxygen tank and other devises; you can inflate it with air to help you float, and then deflate it when you dive.
  • Regulator - this is what attaches to the oxygen tank, and allows you to inhale its oxygen and exhale bubbles into the water through the mouthpiece. It also connects to the BCD to help the BCD inflate.
  • Gauges - the compass, dive computer, clock, and air gauge can all be considered your gauges. These devises monitor your direction, depth, time spent underwater, amount of oxygen left in your tank, and more.

Scuba Gear (Collage made by Amanda J., with photos from DSE2)

Visit Dive Shops
Scuba diving all begins with the basics, from the gear and their functions to the options for certifications. The best way to learn about scuba is to start by visiting your local dive shop. Divers (including myself!) love to explain scuba equipment, how training courses work, and their diving experiences.


Footnotes
[1] Promate Scuba Dive Fins Mask Snorkel Boots Gear Set. (2011, February 27). Snorkeling Packages. Retrieved March 29, 2011, from http://allplayoutedit.blogspot.com/2011/02/promate-scuba-dive-fins-mask-snorkel.html
[2] Feature Scuba Equipment. (n.d.). Divers Scuba Equipment. Retrieved March 29, 2011, from http://diversscubaequipment.com/index.asp

Sunday, February 27, 2011

Milestones in Scuba History

Note: Click on the year to see the link from where I gathered the information, or refer to the footnotes at the end.

Henry Fleuss receives a patent for his self-contained breathing device, and tests it by breathing underwater.

The company Draeger (or Dräger) in Germany releases an underwater oxygen rebreather, which recycles air so to re-breathe the same air. (See photo below.)

Source: Draeger History2

Yves Le Prieur creates a breathing device that does not recycle air, and it becomes known as "the forerunner of modern scuba." 

Fins are first patented in France and then in the US by Louis Corlieu, and the fins are made of rubber strengthened by steel.

Rubber fins are patented by Owen Churchill, as an improvement of Corlieu's fins. (See photo below.)

Source: Smithsonian5


19426
The design of the aqualung is improved by Jacques Cousteau throughout the 1940s, and hits the market by the 1950s. (See advertisement below.)

Source: My Watch

The red-and-white dive flag (still used today) becomes popularized by Ted Nixon, even though Denzel James "Doc" Dockery invented the design. 

NASDS (National Association of Scuba Diving Schools) is founded.

The Professional Association of Diving Instructors, or PADI, is founded.

SSI (Scuba Schools International) is founded.


Footnotes
[1] Henry Fleuss. (2010, November 15). Wikipedia. Retrieved February 27, 2011, from http://en.wikipedia.org/wiki/Henry_Fleuss
[2] History About Dräger. (2011). Dräger. Retrieved February 26, 2011, from http://www.draeger.com/US/en_US/company/about_draeger/history/
[3] The History of Scuba Diving. (n.d.). Best Scuba Diving Tips. Retrieved February 27, 2011, from http://www.best-scuba-diving-tips.com/history-of-scuba-diving.html
[4] Thomas Tillman. (2010). Timeline of Diving History. Diving History. Retrieved February 26, 2011, from http://www.divinghistory.com/id11.html
[5] Owen Churchill. (n.d.). Smithsonian. Retrieved February 27, 2011, from http://americanhistory.si.edu/sports/exhibit/removers/churchill/index.cfm
[6] Scuba Diving. (2008, April 2). New World Encyclopedia. Wiki, . Retrieved February 27, 2011, from http://www.newworldencyclopedia.org/entry/Scuba_diving
[7] Chris Whitten. (n.d.). Dive Flags. Retrieved February 27, 2011, from http://www.dive-flag.com/
[8] Recreational Diving. (2011, February 18). Wikipedia. Retrieved February 27, 2011, from http://en.wikipedia.org/wiki/Recreational_diving
[9] About PADI. (2011). PADI. Retrieved February 27, 2011, from http://www.padi.com/scuba/about-padi/default.aspx