Within the diving community there is a very active and at times colourful debate about equipment rigging and how to do things with 1001 different views, whys and wherefore’s. One area in particular which demands very serious consideration by every diver, is that of which regulator to donate in an Out Of Gas (OOG) scenario [...]
JOHANNES DIDERIK VAN DER WAALS 1837-1923 Amsterdam University 1910 Nobel Prize for Physics for his work on the equation of state for gases and liquids. This tends to indicate that he knew his stuff. OK. The simple rules for gases about pressure, volume and temperature that you learnt in Scuba for beginners are only [...]
We all know about pressure because we’ve all blown up a balloon but let me recap a bit so we are sure we are all speaking the same language.
Decompression stops are a very necessary and vital part of the diving process. Decompression stops involves the necessary pauses or time periods that a diver stops his or her ascent from waters in order to permit his or her body to naturally dissolve various gases in his or her bloodstream. If decompression stops are not implemented during a diver’s ascent, there is a tremendous risk that he or she will develop what is commonly identified as decompression sickness.
A pre-diving safety check is a ritual that divers, new and old, need to do regardless of how many times they have been diving or how old their equipment may be. The pre-dive safety check takes just a few minutes, ensuring that your equipment is in the best working order before getting in the water. The best way to implement the safety check is with the use of an acronym, and it is even better if you employ the acronym with a friend.
Trim refers to the position you naturally take when swimming in the water.
The best way to find out how much lead you should be carrying is to carry out a buoyancy check by physically checking it in the water.
Here are a number of example camera settings and shooting tips that may help you get the shot you want. When going for the more advanced pictures, the digital world is not that different from the conventional: each kind of photo requires a different approach!
As you descend, pressure increases on the dead air spaces in your body, especially the ears and sinuses. To equalize the air space, you need to add more air to these areas.
To start sinking, exhale and slowly let air out of your BC by pushing the manual deflator button and holding the BC inflator hose up with your left hand.