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Scuba Diving and On-line Piracy The Common Link in a Web of Conspiracy Casey Nelson & Caryl Gonzalez SCUBA Self-contained underwater breathing apparatus Compressed air tank Buoyancy compensator (BC) Regulator Weight belt Mask, snorkel fins Scuba Diving A brief history…

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scuba diving and on line piracy

Scuba Diving and On-line Piracy

The Common Link in a Web of Conspiracy

Casey Nelson & Caryl Gonzalez

scuba
SCUBA
  • Self-contained underwater breathing apparatus
  • Compressed air tank
  • Buoyancy compensator (BC)
  • Regulator
  • Weight belt
  • Mask, snorkel
  • fins
scuba diving
Scuba Diving
  • A brief history…
  • Young skin divers in search of seafood
    • Breath holders
    • Greeks to early 1900s
  • 19th century: effects of water pressure on body, safe limits of compressed diving
  • 1948 Rene Bussoz of Rene’s Sporting Goods in Westwood, California
    • Imported Aqua-Lung
scuba diving4
Scuba Diving
  • 1960s
    • Equipment improves to similar to what we use today
  • 1983
    • Dive computer introduced
  • 1990s
    • Advances in technology of mixed gases, full face masks, underwater voice communication
training standards
Training standards
  • Aqua-Lung (Depression Era)
    • Sold to anyone
  • Formal training programs
    • Military, scientific institutions, dive clubs
  • Neal Hess certifies divers (1950s)
    • Instructors
    • National Diving Patrol
  • Al Tillman (1953)
    • Sports director for LA county
    • World’s first public dive training agency
    • World’s first civilian Underwater Instructor Certification course
training standards6
Training standards
  • 1960s
    • Accident rates for scuba divers increase
  • NAUI (National Assoc of Underwater Instructors)
    • Formed in 1960
    • More rigorous
  • PADI (Professional Assoc of Diving Instructors)
    • Formed in 1966
basic concepts
Basic Concepts
  • You are under pressure while diving
  • The deeper you go, the more water pressure you experience
  • Air tank supplies you with air at pressures equal to the surrounding water
  • Air-filled spaces-you must breathe!
    • Lungs, sinuses, middle ear
    • All these spaces must be filled with air equal to surrounding pressure
    • No diving with cold, sinus congestion or anything that restricts movement of air between these spaces
basic concepts8
Basic Concepts
  • You must breathe all the time while diving
  • NEVER hold your breath while breathing compressed air
  • As you ascend, the surrounding water pressure decreases
    • Air expands as you ascend
    • Breathe naturally to vent this air
  • Learning to control your buoyancy
basic concepts9
Basic Concepts
  • What if I run out of air?
    • Guage, extra regulator
  • What if I get too excited?
  • What if something goes wrong?
    • Why you get certified…
  • What if I see a shark?
    • Most experienced divers have never seen a shark
decompression sickness
Decompression sickness
  • Air= Oxygen + Nitrogen
  • Oxygen
  • At the surface
    • Balance of Nitrogen consumed and eliminated
  • Under increased pressure
    • Concentration of Nitrogen is increased
    • Balance is upset
  • After spending time under pressure, quantity of Nitrogen increases in your tissues
  • Idea is to control amount absorbed and rate it is eliminated
decompression sickness11
Decompression sickness
  • As you ascend, “outgassing” occurs
  • Excess nitrogen passes from the body tissues to blood to lungs and is expired
  • If change in pressure is sudden
    • Nitrogen comes out of solution suddenly
    • Bubbles form in body tissues
    • The “bends”
scuba diver
Scuba Diver
  • Scuba Diver or Open Water Certification
  • PADI
    • Scuba Diver is pre-entry level
    • For vacation diving
    • Subprogram of Open Water Certification
  • Open Water Certification is basis of all certifications
open water certification
Open Water Certification
  • Learn fundamental knowledge and skills to dive
  • When finished, competent to dive in open water without supervision
    • Provided diving activities and areas dived are similar to those in training
  • Minimum age is 15yrs
  • Includes classroom sessions, pool sessions and open water dives
    • 3 for PADI, 5 for NAUI
open water certification14
Open Water Certification
  • Can dive to 60 ft
  • Daytime diving
  • Equipment:
    • Mask, snorkel, fins, booties
    • Weight belt
    • BC, regulator
    • Book packet with dive charts
open water certification15
Open Water Certification
  • Can complete over weekend plus 2 days for open water dive
  • Or…can complete over several weeks, meeting 1-2 times per week plus open water dive
  • Not cheap
    • Class: $175.00
    • Books: $50.00
    • Equipment: anywhere from $50-200 depending on quality and what you buy
    • Open water dive: Hotel plus fee for dive ($10-15)
other certifications
Other Certifications
  • Adventure Scuba Diver
    • Boat Diver, Underwater Naturalist, Fish Identification
  • Advanced Scuba Diver
    • 5 Adventure Dives
  • Master Scuba Diver
    • Highest recreational diver level
    • Significant training and experience in wide variety of environments
other certifications17
Other Certifications
  • Rescue Diver, Advanced Rescue Diver
  • Night Diver
  • Search and Recovery Diver
  • Underwater Ecologist
  • Wreck Diver
  • Ice Diver
  • Deep Diver
  • Cave Diver, Cavern Diver
  • And on and on and on……
very approximate trip costs
VERY(!) approximate trip costs:
  • Flower Garden Banks Nat’l Marine Sanctuary 2-3 night live-aboards… $325-400 all inclusive except for tips (10-15%) Trips scheduled thru local dive shops w/ any of 3 charter operators <http://flowergarden.noaa.gov>
  • Cozumel 7 nights w/ Buena Ventura Diving & hotel accommodations … $425 - $700 + travel, meals!
  • Little Cayman @ Pirates Point Resort weekly dive pkg … $1,495 + travel!
  • Galapagos 7 night live-aboard (Sky Dancer) … $2,695 + travel!
local dive shops
Local Dive Shops
  • Texas A & M Galveston
  • Diver’s Paradise
    • 20801 Gulf Fwy, Webster, TX
    • 281-332-9982
  • Sport Divers of Houston
    • www.sport-divers.com
    • 20710 Gulf Fwy, Webster, TX
    • 281-338-1611
local dive shops21
Local Dive Shops
  • Budget Scuba
    • 5103 East Wallisville Rd, Baytown, TX
    • 281-421-2018
    • $259.00 for class, books, certification fees, rental gear for open water, pool time
    • Extra for equipment you buy
local dive shops22
Local Dive Shops
  • Gigglin’ Marlin Divers
    • 2211 Richmond, Houston
    • 281-445-3483
  • Sea Sports Scuba
    • 7543 Westheimer, Houston
    • 713-977-0028
remember
Remember…
  • When you go diving, you are usually the most dangerous animal in the water!