Physics and Chemistry!

[jonathon50]

hi all, just joined.my name is jonathon, been diving since 02 and love it! have recently started asTDMand already the thought of physicsis filling me with dread! do i really have to know ALL in the Encyclopedia of recreational diving? please say no!

 

[boulderjohn]

Welcome to ScubaBoard!

I am not sure what you mean by TDM--is it what many of us call DMC (Dive Master Candidate)?

ScubaBoard has many, many forums, and most of the regular members do not read the posts in the introduction section. You will find your best responses in a subsection of the Basic Scuba Forum called Going Pro. There you will find many people asking and answering questions like this one.

 

[Rhone Man]

do i really have to know ALL in the Encyclopedia of recreational diving? please say no!

No, just the physics, physiology and equipment sections.

 

[Thalassamania]

I hate to tell you this, but I'd find even complete recall of the Encyclopedia of Recreational Diving as inadequate for leadership personnel. If nothing else, there are alternate views to those expressed in said book that you should be familiar with.

 

[gounta]

Hi Jonathon50,

I completed my DM earlier this year and OWSI last week, it is a good idea to make sure you understand the principals in both the Physics and Physiology sections of the Encyclopedia. Not so much EAD but definitely lifting calculations, gas consumption or volumes at different depths. Physiology, ear, lungs and the effects of over expansion, DCS and DCI. I read these sections a couple of times and was terrified of the exam as it had been years since I had to try and take so much information in. Now when I look back it wasn't actually so bad. I just made it worse by being negative. Don't worry just do a few different exercises and play around with different equations. Give yourself time for it to all make sense. Don't read all the literature the week before and then try to do the exam. You may be diving and think of a scenario and refer back to the literature to confirm your thoughts.

It is rewarding so don't worry too much just yet.

Congratulations on taking the next step!!!