Week Two

Week two began with a very detail-oriented discussion on the "internals" of diving... Respiration/circulation with terms like mammalian reflex, carotid sinus reflex, hypercapnia, hemoglobin, oxygen toxicity, nitrogen narcosis, and barotrauma! Whew. Starting to rediscover the value of straight-forward terms/definitions sheets from highschool!

Then after a break we turned toward equipment.

Here Bob (in back) tells Frank, me and Keith about the physical markings of a scuba cylinder. He says that he could go on for hours about recognizing a safely usable scuba cylinder (but for now I'll reserve the details for my next class).

Keith examines a fracture in a cut-away cylinder top to see what they look like from the inside.

In case you aren't a trained scuba cylinder inspector, the fracture is right there in the middle. Can't you see it? It's right there! Still can't see it? Well, just keep bringing your tanks to Bob at Great Lakes and you won't have to worry, Bob will take care of it for you!

Ending my diary for the day with this great poster in the classroom! Ahhhhh! (for now....)