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I was just surfing the net today when I came across a video which really surprised me. http://www.yukoneer.com/misc/Tank%20shootout%20Final.wmv For some reason the LA Sherrif's dept. and some marine school took a full Luxfer Al 80 and a full LP steel 80, shot them with a 30-06 rifle and...

Speaking as someone who has over 25 yrs experience in the mining industry and who currently works for a consulting engineering firm in the business I would urge extreme caution around old mines. I frequently visit them in the course of my work (people often want to reopen old mines) and...

Thanks muchly.

Okay, I have skimmed the whole thread and can't find it. Can someone maybe give a hint as to when/where this show might be? And possibly a web link? Thanks in advance.

I bought all my gear there. Very helpful staff and, I felt, fair pricing on a package. I live in downtown TO and I drove there to shop. Also, this was one of the few shops I've been to that didn't slag lines of equipment which they don't carry. When I did my shopping for regs I looked...

The way this question is phrased seems to me to assume that it is a random event. It is not usually. Good maintenance and a good setup makes it very unlikely. Poor maintenance and a poor setup (especially with gas or diesel powered compressors make it very likely. Carbon monoxide...

From the Toronto Star, Oct. 1, 2002 Hyperbaric chamber won't close Toronto General reverses plan on key treatment device Robert Cribb STAFF REPORTER Facing fierce public criticism, Toronto General Hospital has reversed its decision to shut down the city's only hospital-based...

Canada http://www.ccg-gcc.gc.ca/obs-bsn/sbg-gsn/diving_e.htm

In 1996 I paid $CDN 149.00 (about $US 100 at the time) for a PADI open water diver. This included all gear rental for the training and the open water dives. They also loaned a PADI manual. I had to pay $35 for the PADI manual if I wanted to keep it (got a new one if I paid for it, used if it...

I don't believe that this is an issue for most scuba compasses because they are generally designed to be useable in a variety of orientations. I believe that Rodales tests this feature and found that some compasses will function when up to 30º off of level. Most scuba compasses will function...

The forces that result in non-ideal behaviour of gases are called Van der Waal's forces. If thermodynamics does not bore/confuse the s**t out of you do a google search on the term. You will get a lot of info. Ideal gas behaviour is a relationship between pressure volme and temperature of...

A quick google search found this: http://www.divernet.com/gear/98guide/tcylinder.htm http://www.sunseekerdiving.com/acatalog/Online_Catalogue_Scuba_Cylinders_17.html and a few others.

Thanks for the link. Being a geologist I found it interesting. I'm also surprised I haven't heard of it having lived nearly 45 of my 47 years here in Ontario. Sounds like a boring dive according to mddolson though. Oh well.

This winter I was researching a tank purchase and was considering OMS/Faber tanks. I sent them an e-mail asking about corrosion protection and this is how they responded: >It is an automotive-type paint called "IMRON." It is applied in >a cold-spray galvanized method. >The boots do have a...

Perhaps you could expand this a little bit so I can understand what you are talking about. I didn't think there were very many mountains around Peterborough.

I am still not sure why you want to double disc. The burst disc is not designed to fail at the working pressure of the tank. Rather it is designed to fail before the tank reaches its test pressure, thereby preventing catastrophic failure. Contact the manufacturer of your valves to find...

Bob3: What about the water retained inside a BC's baldder? They stay wet for weeks or months. One of the stages in most mollusc's life cycle is a tiny larvae with no shell which floats around. It is easy to trap and transport such critters in large numbers inside a BC bladder. How do...

This is a common problem with news websites. They update stories many times a day and links may only be good for a few days or less. You might find the stories if you go to the site's homepage and search archives.

I believe that you are right Rick but I also believe that it is not just your pickup. It also includes your plane, boat, train or any other form of regulated transportation. The DOT is the Department of Transportation.

To some extent the temp change will depend on the wind direction. I vacationed on Manitoulin Island in August and did some dives on the Lake Huron side, not that far from Toby. I have a friend who runs a fish farm there and he pumps his water from 35 feet down in Lake Huron and measures the...