Scuba
There are few sports more exhilarating than scuba
diving. Scuba diving gives you unparalleled access to
life underwater. The vast majority of the world is
underwater, just waiting to be explored, yet very few
people have ever ventured into this world to any degree.
This is why scuba diving is so amazing: the world’s seas
and oceans are some of the last few undiscovered places
on our planet. There is also the fact that it can be
absolutely gorgeous under the water. If you have ever
had an opportunity to go scuba diving in the tropics
along a coral reef, you will know how breathtakingly
stunning life under the sea can be. (Just remember to
not disturb the coral reef – leave it as it is for
others to enjoy!). Scuba diving also gives you an
opportunity for adventure. Imagine the excitement of
swimming around in a shipwreck! From the Mediterranean
to the Great Lakes to the English Channel, there are
thousands of shipwrecks waiting to be discovered. While
scuba diving is primarily seen as a hobbyist sport, its
history is steeped in commerce and the military. Police
and military forces worldwide have ‘frogmen’ ready to
slip into the water on offensive, rescue or covert
missions.
What is scuba diving?
Everybody knows what scuba diving is, but few actually
know what scuba means. The word ‘scuba’ is actually an
acronym for “Self Contained Underwater Breathing
Apparatus”. Scuba diving is, of course, different from
diving. People have been diving for thousands of years
without equipment. However, today that is called free
diving. Over the years, people invented ways to stay
underwater for longer periods of time. The biggest
advance came in the 16th century, when people started
using diving bells to pump air from the surface to
people underwater. Fortunately, things have advanced a
fair bit since then. Scuba diving as we know it really
developed during World War II. The basic scuba set-up is
a tank of compressed oxygen on your back, with a line to
a mouth piece. The oxygen flows through your mouth
piece, allowing you to breath. Your carbon dioxide is
then either released into the water, or, in
self-contained systems or rebreathers, back into the
tank.
The dangers of scuba diving
Not surprisingly, there are a number of risks associated
with scuba diving; you are, after all, putting yourself
under water and hooking your lungs up to a tank. The
most common injury comes from changes in air pressure.
As you go deeper underwater, the pressure around you
increases. If the pressure becomes too much, you can
rupture your eardrums or damage your sinuses. If you
come up from underwater too quickly, you can also get
‘the bends’, also known as decompression sickness.
Learning to become a scuba diver
As you can tell, because of the many dangers associated
with scuba diving, it is best if you only go scuba
diving with proper equipment and once you have received
proper training. Indeed, many equipment rental stores
will only rent scuba gear to you if you have proof of
certification. Most countries have national certifying
bodies that can train you to become a certified scuba
diver.
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