cave depths

[kotik]

Okay, I guess my bleeding heart appeal isn't going to get much traction...

 

[lowviz]

kotik,
takes balls...

OK, here goes again. :sigh:

@ grassgreen:

As I said before, I had an amazing IANTD cave instructor. We discussed at length the logic of taking an “Outsider’s” money and progressing him/her through full cave training as rapidly and as safely as possible. A guided tour. Most likely the cave student will never manage to find their way back to cave country to hurt themselves. Thus, they endured the most minimal exposure to a very dangerous environment while getting the adventure that drew them in the first place. A pinnacle cert card. They wanted the blue pill. I've heard that some teach to this standard, sounds like yours did.


You have your cave card, but you persist.

Read Amazon.com: Basic Cave Diving: A Blueprint for Survival (9789994663378): Sheck Exley: Books then take the red pill. Or just forget that all this happened…

 

[Tigerman]

Can somebody draw another picture for me? I'm starting to get it but math was never my thing.
So, when the white heavy rocks are pushing down, but we have a little bubble of air above us, but there's a column of water coming down in a squiqqly line, which pressure were we supposed to calculate again? How come those rocks don't crush the divers? I was reading about a diver in a mine with lots of shoring? How come the mine didn't collapse?
Okay, sorry, I'm blonde but just kidding ya.

Actually in the copper mines where I come from (they where in buisness 1545-1945 so that mountain is like a swiss cheese) lots of people has been crushed by the pressure of the mountain above the mine shafts...


...When the mineshafts collapsed

 

[ajduplessis]

Blackwood,

By the way this is my little blue that keeps me awake at night. Maybe she can help greengrass out with his understanding of pressure, especially in caves!! PS: She is not an instructor.