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Maximising Nitrox
When nitrox is free, all well and good, but when you have to pay for each fill, you want to make the most of it. John Liddiard offers some tricks you may not learn on an advanced nitrox course. So what is a Scapa Fill?more...
30 ways in which tech diving can boost your fun!
John Kean is passionate about technical diving, and wants more of us to enjoy its benefits. Trouble is, he says, the Technical Prevention Officers are putting us off
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We're all tekkies now...
...but where do you sit on the Technical Curve? The term "technical diver" has become distorted over time, argues John Bantin. He attempts to sort out the confusion, and takes a closer look at the device he places at the top of the 10-point curve, the closed-circuit rebreather, while John Simenon takes the mystique out of mixed-gas diving more...
Trimix - the new nitrox?
Nitrox has taken its place in everyday diving, so is trimix now heading the same way? A mix containing helium will give you a clearer head on deeper dives, but is a training course worth your trouble and money? Jesper Kjøller tests the TDI Trimix Diver course to find out.
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Deep silence
After a long wait, our regular deep wreck correspondent Leigh Bishop finally gets his hands on the latest CE-approved closed-circuit rebreather, the Ouroboros.
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Bubbles gone bad?
What would we think if drugs companies relied on feedback from patients to tell them whether new drugs worked - or if they left it to sufferers to decide on the correct dosage? Mark Ellyatt, who has seen the inside of a few chambers, reckons that's exactly what's been happening for years with dive-planning software for tekkies
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CCR Closed Circuit Refresher
Guide for users of the APD Inspiration and Evolution more...Netdiver
For some divers, Internet forums can be seriously addictive, reckons Mike Ward. Still, once you've gained diving know-how, it's your duty to share it with others
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Five skills for the pool
If you have regular access to a swimming pool for dive training, don't waste any valuable underwater time, suggests John Liddiard - use it to hone your skills in preparation for the next training course
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Understanding trimix
Beyond normal recreational diving limits, use of mixed gases allows extraordinary projects to be undertaken. Painstaking planning is the key, says John Simenon. Everyone can be a 'technical diver', but it's up to you how technical you want your diving to be. more...Maiden sub voyage for Innes
He's UK diving's foremost submarine expert, so how come he had never been in one? When a Russian sub showed up at Vobster Quay, Innes McCartney couldn't resist. John Liddiard turned up to see how it went down more...Get it wrong and you're dead
The diving world was shocked when famed British diver Rob Palmer died in mysterious circumstances in the Red Sea - last seen at 120m on air and still descending. John Bantin, a close friend of Rob's, explains why after a week of madness his death came as no surprise
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DIR is AOK
When the DIR (Doing It Right) philosophy of diving first arrived from the USA, Brendan O'Brien wrote what was, it must be said, a somewhat cynical article for DIVER. So when, five years on, he was invited to attend a DIR training event at Stoney Cove, what sort of experience would he be in for?
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DECO-DIVE planning for success
The arrival of computer-generated software tables made it easier to plan decompression-stop dives, but it's all too easy for the gas-reserve "rules" to be discussed only briefly on training courses - and then to be forgotten. Leading deep diver Mark Ellyatt highlights the vital steps to take when planning a deco dive involving a back gas and a single decompression gas
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