Scuba

[dannubis]

Below 50 meters you use a mixture of Helium, Oxygen and Nitrogen, to avoid nitrogen narcosis and oxygen poisonning.

Going back up you switch to gasses without Helium and increasingly rich in oxygen to speed up decompression.

Since water filters red light out over a distance of less than 3 meters you always need a light to enjoy full color. Of course at increasing depts you need better lamps, otherwise they go kapoef.

One of my friends went to 250 meters. I don't do that ****...

[OneFootInTheGrave]

250m! ... I am not sure what is the record for scuba, but I guess it is not a lot more than that (300m?)

[MikeH]

330 apparently. (I was interested so I googled)

[Dinner]

What's the point, KH? Your certification will have lapsed by the time you get enough time off to go on another vacation to some where with nice diving.

[dannubis]

PADI does not lapse. You 'll ahve to renew to insurance each year though.

[KrazyHorse]

I'm going to get padi. It seems like the most recognized.

The breathing gas dannubis talked about is called trimix, btw. It is the standard bottom gas for any deep dive.

[dannubis]

Regarding insurance check out if DAN is active. There is general consensus that these guys are the most reliable in Europe.

http://www.diversalertnetwork.org/co...tional.asp#DAN America

[KrazyHorse]

Why insurance? I already have health, disability and life insurance.

[dannubis]

Do they cover scuba diving?

All divers I know have an additional insurance. It helps you getting in the hyperbaric chambers if the need should arise and repatriation is taken care of.

Anyway, since I don't know about your perticular case I can't comment on this.

[MRT144]

I can't wait for KH to start scuba diving the east hudson finding countless mafia treasures.

[Tupac Shakur]

the east hudson

[MRT144]

I meant, eastern part of the hudson.

[KrazyHorse]

Sure you did.

[Berzerker]

That is always a risk. Pity.

Anyway, she got out relatively unharmed which is a good thing.

you aint kidding, she had me worried - she was doin this in Indonesia too, close to the islands where "rebels" are/were misbehaving so she could have gotten it from one of the many poisonous critters in the water or become a hostage when she got out. I think thats when she started making more trips to the Caribbean

What happens if you return to the surface with air in your lungs too fast? Can that happen without air tanks?

[KrazyHorse]

You can rupture your lungs and die. It can't really happen without air tanks because your lungs would have become compressed on the way down (you never fill them with higher than atmospheric pressure air)