Lesson 1: Scuba Diving Flashcards
was used where the idea was to trap the air inside the container where the diver swims out until he or she runs out of breath then returns to the bell to replenish air
simple cauldron in the shape of a bell
what year was a simple cauldron in the shape of a bell used
1300s
who developed an improved diving bell
Edmund Halley
he built the “diving engine”
John Lethbridge
what year did was the improved diving bell developed?
1690
an underwater oak cylinder supplied with compressed air from the surface
diving engine
what year was the diving engine built?
1715
invented originally for firefighters
smoke helmet
who invented the smoke helmet?
Charles Anthony Deane
what year was the smoke helmet invented?
1823
it had a cylindrical belt around the diver’s trunk that served as an reservoir
SCUBA
he invented the first workable, full time SCUBA
William James
year the first scuba was invented?
1825
it completed the diving helmet of Deane and became the standard diving dress
diving suit
A German inventor who innovated a closed diving suit
Augustus Siebe
in what year was the diving suit invented?
1837
when was the first diving school established by the royal navy?
1843
where the diver carries a steel tank of compressed air and is connected through a valve which goes to the mouthpiece
aerophore
who patented the aerophore?
Benoit Rouquayrol and Auguste Denayrouze
what year was the aerophore patented?
1866
he developed the first self-contained diving gear that used compressed oxygen
Henry A. Fleuss
year the first self-contained diving gear that used compressed oxygen
1876
provided compresses air divers in the slightest and later on called as
aqualung
they redesigned a car regulator which later became the aqualung
Jacques Cousteau and Emile Gagnan
year the aqualung was invented
1943
True or False
Temporary restrictions to dive are given to those with colds, flu, injured or pregnant.
True
True or False
Disabilities do not hinder anyone from scuba diving.
True
True or False
A child as young as ten years old can start learning in shallows
False
A child as young as eight years old can start learning in shallows
True or False
A 10 year old can be qualified to train and be certified as Junior Open Water Diver, while an 18 year old can apply for an Open Water Certificate
False
A 10 year old can be qualified to train and be certified as Junior Open Water Diver, while an 15 year old or older can apply for an Open Water Certificate
creates the air pocket to have a clearer view of the underwater life
dive mask
is a breathing tube allowing you to inhale and exhale through your mouth when swimming face down on water surface
snorkel
let’s you breathe underwater. it connects to your tank and delivers air to your mouth when you inhale
regulator
helps control the position in the water column. if air is added in an internal bladder, then one rises toward the surface. by removing air from it, one sinks.
BCD or Buoyancy Control Device
backup regulator. it usually has a longer hose and a bright yellow body
octopus
shows how much of the air is left
SPG or Submersible Pressure Gauge
contains pressurized air which allows one to breathe and to stay longer underwater
scuba tank
provide the propulsion that makes it possible to swim with lesser effort
fins
provides protection from the coldness of the water and other elements
scuba or wet suit
