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One of the main physical concepts that needs to be fully understood during early scuba diving training is that of buoyancy. Buoyancy theory is encapsulated in Archimedes Principle which states that when a body is immersed in a liquid it experiences a force acting upwards on it that is equal to the weight of the [...] I am a keen angler, have been off and on for many years. Even on diving trips. In fact I remember a cracking day’s diving on the “Undaunted” out of Scarborough in the 90s when the skipper took us back and forth across a productive wreck during our 6 hour surface interval enforced by the [...] My buddy and I had been diving for a number of years and the chat to the various scuba diving sites had always been how we were going to take our diving forwards. We had both completed the basic nitrox course on a live-aboard in the Red Sea earlier in the year and now the [...] Dive instructing is a responsible task. To learn to scuba dive a student has to be taught properly. Otherwise, like driving on the roads for example it can be potentially hazardous for the badly trained student and others around him or her. There are a number of reasons why one might want to become an instructor. In [...] For some time my buddy and I had been scuba diving together using single cylinders with octopus. It is how everybody is taught to dive these days, and indeed how most people continue to dive throughout their diving careers. Some may add a pony cylinder, as we did , if an added redundant source of air [...] Earlier this year I bought myself a VR3 Spectrum. I had been hankering after one for years because they seemed to be the ultimate dive computer. The price had put me off at around £800 for a suitable version. However, I was offered a hardly used one for less than half that price, it only [...] |
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