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Overall I think that the direction of the impacts of this are clear, the magnitude of the impacts will depend on how long it takes to start to get to whatever will be normal. Internet will be more important, we will do more on line learning instead of classes. Some universities have already...

I am seldom asked for cards, however a reputable dive shop will (should) ask for (or about) them before taking you deep, wreck (penetration anyway), or giving you a tank of nitrox.

I am of the school of thought that the only specialties to get are those that give you a c card required to do some types of dives that you want to do. Examples are deep, nitrox, ice, cave and wreck dives. You are likely to be asked to show your card at a reputable dive operator to do these...

The problem with saying that a diver reverts to their training is that it assumes that they were trained to begin with. They may have a c card but that does not actually mean that they were trained or trained properly or paid attention to their training. If they really were following their...

Dry suit infiltrator?

I only used it once. We had planned a 2 week all inclusive in Jamaica for family, kids and in laws. 4 adults 2 teenagers. It was a high end and over Xmas and New Year so was around $20,000 CDN. MIL had a mild stroke about 2 weeks pre-departure, Dr advised against travel so he wrote a note, I...

He has his dive gear with him. He will be able to dive his living room.

I am sorry but the position of the gas in the BC does not impact buoyancy that much. Perhaps if the shifting caused a slight increase in the height of the gas bubble it would expand but at any depth beyond a couple m the amount of expansion due to a diver rotating from horizontal to vertical...

They are both 4 lbs negative assuming no difference in the air in their BC from start to end of dive. The weight of the tank does not matter, how much lead they have and how buoyant their bodies are does not matter. AAll that matters is the change in weight during the dive and in both cases it...

Put me in the anti tipping group. I expect to pay for a service up front not have a hidden amount that I am expected to pay afterwards. If you cannot make a living at what you are doing then you should look for another job. There are lots of complaints from dive instructors here about how hard...

I spent a summer at Cold Lake Alberta and dove with the military dive club there. They had an annual fund raiser to go to the golf course and dive for balls. They sold the balls and used the proceeds for club level equipment, O2 stuff, IIRC the excess went to a charity. Nasty diving, not really...

Some of our best vacations with kids involved taking the in laws. That gave us 4 adults and 2 kids, everyone had a chance to enjoy being with the kids, being able to do adult things and the kids really loved the time with the grandparents. We were in just about every combination, a kid alone...

I was taught to put the console through the BC, under my arm and positioned so that the gauges were showing with just a need to glance down, I still dive this way and can always take a quick look at my gauges. I also dive with my left hand holding my right wrist so my DC is also in an easy to...

So far no one has mentioned another source of potential reimbursement, your credit card. Most card agreements are for that you pay the credit card for goods received or services rendered. If the airline cancels the trip BEFORE you start the trip then you should be able to claim the entire cost...

I am an engineer and used to doing calculation in my head. I can do SAC and RMV approximations using either metric ( MUCH easier) or imperial equipment. ( Actually i convert the imperial to metric in my head before doing the calculation.) I take a guess at my average depth to that point on the...

Speed of Sound in Water - The Physics Factbook "Sound is a type of longitudinal, mechanical wave. They need a medium to propagate and will not travel through a vacuum. Sound travels at different speed in different media. The speed of sound is determined by the density (ρ) and compressibility...

I am considering switching to a BP/w set up. Currently I have a traditional jacket style BC with integrated weight pockets. I carry 10 lbs. weight without my shorty and 12 lbs. with it on. This is about as close to optimal weight as I can get. I mostly dive warm tropical salt waters. Now...

A word on the law of home brew as I understand it. I am not a lawyer so this is only my understanding of the law. In Canada the law on distilling your own spirits revolves around the tax law. That is it is not illegal to produce it, just illegal to not pay the tax on it. However there is a...

Look on the bright side, when all these cruise ships get decommissioned, they will make some really greet artificial reefs and wreck dives.

It might get to that. Last week in Moalboal, I saw swat armed police, auto rifles and all the battle rattle, chase bikini clad beach bunnies out of the water for swimming.