Activity Stream

That could be regarded as a spin off of having the right hand side of the bell curve not having kids, or fewer, than the left hand side.

It has -does it not - to be a personal choice? My choice also is not to add to the numbers. I have friends that have kids and family that are still...

I am reliably informed that you need it or the second stage will be upside down. Sorry - my understanding doesn't go any further. I have a long...

Hydrogen/helium. Why does the name Hindenburg spring to mind?

Simon Mitchell did a really good presentation a few weeks ago on his dives with hydrogen but a lot of that was to deal with HPNS at extreme depth as...

There is an expectation with the Royals in the succession line to produce at least two - an heir and spare. Three is just being cautious. I have...

I am not a techie diver so this may seem a stupid question. As I understand it, helium is used to dilute the other gases as it is non reactive. As...

What’s a left hand octopus, and why would I need one?

Sadly no matter how many times this bullshit is put forward it is wrong. I agree with you about the talking shop and Johnson is a poor example in an...

Lets be honest - this hot air being spouted at COP whatever at the moment will nothing but create a few more platitudes. The only thing that will...

I must've misinterpreted this: Would they? The agencies might (no idea, I've never had any interest in GUE and UTD are a bunch of cranks...

Shrinkage is allowance made at the pattern stage; it is material dependant and can be any where between ~2-5% or even more (I`ve made lead moulds at...

Dave's old website was an inspiration for a lot of people. I don't think I'd have had any interest in Mk15's without Dave's site and Kevin J's....

https://www.theguardian.com/environment/2023/dec/06/earth-on-verge-of-five-catastrophic-tipping-points-scientists-warn

I did it in Hurgada with a very good Dutch instructor, I can't remember his name alas. Dave Suttons original web site had got me interested so I...

False dichotomy. Such a person is unlikely to be able to find US$2,000+ to do the training plus $1,500+ for compliant kit, the gas is totally...

No kidding! Slick videos...flashy demos... The original was cast I think. I have not measured it but draft may be inherent in the design and...

Some people just can't let it go. (Like left hand octopus :D )

Crewed a private 56ft yacht sailing from Komodo to Bali in 2012. 300 miles transit. Got caught in tropical cyclone Iggy, 14 people killed in...

Quite surprised he never thought of making a scrubber canister out of a pair of interlocked wellies (or did he?)

What's the fixation with "DIR"? A philosophy that started out with good intentions among a group of specific divers doing specific dives in a...

198 feet on air? It happened in the US before helium was available. We could not convince anyone to wait for helium to be discovered. But I am not...

My inspiration was Dr Duncan Price of this parish and his wonderful selection DIY Kevorkian machines.

Sounds like Duncan’s box of death ��

I made by first ABLJ from a Davis submarine escape jacket, covered with a canvas jacket which I made and dyed orange, the filler was from an old twin...

THose were the days. I'm sure I remember reading about some nutter making an oxygen rebreather out of a coffee tin and some B&Q pipes. Not sure...

HI All, very good conversation, shame ended in 2019 ... I just completed my sidemount course and get my certification - it took me 10mc to complete...

They do have a choice, they can opt to not do 60m dives on air. There are some interesting examples from Europe. In the late 90's/early 2000's...

Thanks and this is still true for many countries around the world. They have no choice but to do 187 on air. DIR agencies have failed to secure a...

Thanks for the replies everyone. To those who are saying that "All training allows you to choose your mix" or "Agencies have no bearing on what mix I...