Scuba Diving Equipment – A brief Historical Timeline

Today, Scuba diving is used by researchers and scientists, military personnel, and adventurous civilians seeking a challenging hobby.  With standard safety procedures, technological advanced equipment, and a structured tutoring system, every averagely healthy person can decide to undergo certification and become a scuba diver. We want to take a peek into the past of this interesting art and sport. Try to see where and how it started. The changes, alterations, and modifications that have influenced the evolution of Scuba driving from inception to its present form. Seat belt on; all systems go. Let’s do a little scuba diving time travel.

Scuba can’t be dissociated from diving; so we’ll dive down the diving alley first (no pun intended):

Pre-historic times: Man went under water to source for fish, coral, and other aquatic nutrition. The earliest diving equipment used were heavy stones to enhance a quick descent into water.

4th Century BC- Aristotle described the use of a diving bell.

16th and 17th century- Development of the diving bell to provide mechanical support for diving.

1535- Guglielmo de Lorena made the first documented use of a diving bell for an expedition on Lake Nemi

1616- Franz Kessler developed a better diving bell

1691- Dr Edmond Halley developed an even more advanced diving bell with windows that could last for 4 hours at 60 ft. under water

1775- Charles Spalding improved on Dr Halley’s design

Between this period and the development of Self-contained, there was the advent of surface supplied diving suits which would allow divers to go underwater but get a supply of breathable air pumped in from the surface. Sorry to burst your bubbles (well, we’re talking about water anyways) but we won’t be covering that part here (don’t be lazy do some extra reading up). Our focus is on SCUBA- Self-contained underwater breathing apparatus and we shall proceed to that right away.

1771- French Man Sieur Fréminet designed and built a diving suit that featured a compressed air reservoir. It was named machine hydrostatergatique

1824- Another Frenchman Paul Lemaire d’Augerville constructed a stand-alone diving equipment which he used

1825- Englishman William H. James also built an autonomous diving equipment which got its air supply from an iron reservoir.

1831- Charles Condert an American designed a system quite like those of James and d’Augerville. It, however, failed him and led to his death in 1832 at a depth of 20 ft.

1838- Manuel Théodore Guillaumet invented a regulator system for use in diving equipment although his air supply was from the surface.

1864- Auguste Denayrouze and Benoit Rouquayrol designed a demand regulator which allowed divers to vary the air flow depending on their requirements. This was, however, also surface supplied.

1925- Yves Le Prieur- obviously a Frenchman- built the first open-circuit scuba diving equipment. He perfected the design in 1933 with the introduction of a full-face mask which was consistently supplied with air from a cylinder

1942- The Aqua-Lung open circuit scuba system was designed by Jacques-Yves Cousteau and Émile Gagnan

The now popular closed – circuit scuba system was developed almost simultaneously alongside the open circuit system with Henry Fleuss developing the first commercial version in 1878 with an upgrade by Sir Robert Davies in 1910. Finally, Christian Lambertsen developed the Lambertsen Amphibious Respirator Unit oxygen rebreather in 1939.

 

 

 

Avoiding Scuba diving’s demons: Nitrogen Narcosis and Decompression Sickness

Just like every endeavour in life; scuba diving as an activity is prone to quite some level of risk. Some people may argue that intentionally diving under water for long is excessively risky. But hey! Getting in an aeroplane and flying at more than 30,000 feet for hour is highly risky too. It’s all a question of perspective. In this post, we are going to consider two of the most common harmful situations that may occur to scuba divers. We will consider their causes, effects, symptoms and possible ways to avoid them and have safer scuba diving sessions. The conditions are Nitrogen Narcosis and Decompression sickness

Nitrogen Narcosis: You may have noticed a similarity with the word “narcotics” Well, here’s an extra fun tip; this condition is also referred to as the Martini Effect. Nitrogen Narcosis is a condition that leads to feelings of intoxication or “highness” while scuba diving.
Causes:
While Nitrogen gas is specifically mentioned, this condition actually occurs when humans inhale any gas at high pressures; these gases (especially inert gases like Nitrogen) have increased solubility under pressure and dissolve more rapidly within the body. Underwater, the combination of the atmospheric pressure and the pressure of the surrounding water provides a conducive environment for the occurrence of Nitrogen Narcosis. Since underwater pressure increases with increasing depth, Nitrogen Narcosis and its effects are more noticeable at greater depths. In actual fact, the martini effect is almost unnoticeable in open waters.
Symptoms:
As stated already, feelings of intoxication and decreased cognitive control are indicators of the onset of Nitrogen Narcosis. The major danger here is the reduced ability of the scuba diver to make decisions and control his/her own actions. You don’t want to be out of touch in your mind some feet below the surface of water.
Prevention:
Want to stop being an alcoholic? Avoiding a bar might be a good idea. Want to prevent Nitrogen Narcosis? Avoiding increased depths is key. A depth of 130 ft. is often considered the limit for recreational scuba diving. For beginners? Be sure to stay strictly within the depth advised by your instructor.

Decompression Sickness
We can easily infer what this condition is about from its name- decompression sickness. In very simple terms, this is a painful condition that relates to the decrease of pressure after a scuba diver starts ascending from some depth.
Causes
The root cause of Decompression sickness is basically the formation of bubbles in the bloodstream when gases that were dissolved at high pressure begin to leave as the pressure decreases with decreasing depth. This condition is aided by a quick ascension to the surface. This is because enough time is not allowed for the dissolved gases to leave the body system through the lungs
Symptoms
The most common symptom of decompression sickness is joint pain- commonly referred to as “the bends”. This pain may be felt in the ankles, wrist, shoulders, and elbows. In some cases, there may sight impairment and severe headache.
Prevention.
Similar to Nitrogen Narcosis, avoiding depths is also a good way to stay safe from decompression sickness. More importantly, however, a slower ascension rate to allow enough time for the release of air/gases through the lungs is important in avoiding decompression sickness.

Scuba diving tips for Maldives

Snorkeling and scuba diving is the two activities that people are doing the most, when they are visiting the Maldives. However, if you want to make sure that you are going to have the best possible experience, you need to make sure that you have all these snorkeling and scuba diving tips when selecting the best place for scuba diving. It is the only way that you can make sure that you are going to have the best time ever, and the best possible scuba diving experience.

Reasons why many people choose the Maldives for scuba

The Maldives is one of the most popular destinations for scuba diving. If you have scuba diving experience, the Maldives is the place that you should consider going. But why is this such a popular place to scuba dive and why are so many people traveling this distance just to go scuba?

This is mostly because of the beautiful scenery that you can find underneath the ocean in Maldives. And, the large amount of sea creatures that you can find in the Maldives that you can’t find anywhere else in the world. There are also a large variety of places where you can scuba, making the experience even better.

Knowing where to scuba

You need to make sure that you know where you can scuba. There are different scuba spots in the Maldives, but this doesn’t mean that they are all equally great and providing all the beautiful scenery.

You should do a little bit of research before you are going to the Maldives for scuba diving, to make sure that you know where you can find the best and most popular scuba diving spots. Many people are missing the great and popular spots, because of lack of research before traveling.

Learning to scuba for the first time

For those that are going to travel to the Maldives and that doesn’t have any scuba experience, should not worry. There are different places where you can learn how to scuba dive and where you can rent all the equipment that you need to have, in order to be able to scuba dive.  I’ve learned that one of the best former scuba instructors is actually in the furnace repair business.

This is a great experience and something that you should really consider doing, even if you never have thought about scuba diving before.

Things to consider before going scuba diving in the Maldives

There are a couple of things that you should consider before you are going to the Maldives for scuba diving. The first thing that you should consider, is how much experience you have in scuba diving. There are some diving spots that are great for beginners, but there are also some spots that are just recommended for the more experienced person.

When you are going to the Maldives, you need to know that you should try to get some scuba diving in, while you are there. This is one of the best scuba diving places in the world, and you should not let this opportunity go through your fingers. With these scuba diving tips, you will have the best experience in the Maldives and you will be able to enjoy a lot of scuba diving. More Info

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