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<smaller> I have nothing but the greatest respect for Haldane (and Hill), but this Haldane deep stop stuff is too much, and a sad misrepresentaion of real deep stop diving technology. So let's go it even more. NEITHER Hill nor Haldane could do deep stops AT ALL self consistently with their "dissolved gas only" algorithms, NOR did either one put "ad hoc" deep stops into any of their published schedules, NOR did they test deep enough to really see the benefits, NOR did they pay more than lip service to deep stops in all their publications. Both made contributions to diving science, for sure, but both should have talked with contemporaries in the physical sciences (even in 1900). The Haldane concept of "spontaneous bubble formation beyond the metastable limit" (called the M-value) might not ever have seen the light of day. It's ca ca. When we were in Norway last year, somebody from the Royal Diving Archives (UK) tried to lay the same thing on us at the NUI meeting-- most laughed. So it's going around? Again, Haldane and Hill did great things -- but deep stops were an afterthought with Haldane. If not, why weren't they "incoporated" in his origianl 6 tissue, constant M-value model? USN guys later didn't take Haldane up on deep stops either -- and it wasn't because "they were too hard to test" as some idiot told me. Deep stops were (still are) inconsistent with Haldane spontaneous bubble formation -- why stop if there are NO bubbles, and when outgassing gradients for dissolved phases are maximized at decreasinf pressures. Horsefeathers on Haldane inventing and testing deep stops. The tech community today can take most credit for that -- and despite considerable flack from some quarters. Bruce Wienke Program Manager Computational Physics Counterterror And Countermeasures Dive Team Ldr <excerpt>I'll go you one better. According to Mike Powell, Bennett confused Hill and Haldane in the article. It was Hill, not Haldane, who advocated the 50 foot stop. That was roughly 100 years ago. -----Original Message----- From: George Irvine [<<mailto:girvine@be*.ne*>mailto:girvine@bellsouth.net] Sent: Tuesday, July 23, 2002 3:53 PM To: Quest@Gu*. Com; Bruce R. Wienke Cc: Techdiver@Aquanaut.Com Subject: Anyone Notice the latest "discovery" by D.A.N.? Anyone see the ridiculous article by Peter Bennett in "Alert Diver" about "Haldanean deep stops" ( an oxymoron) - beyond the pale. Then he goes on to "discover" deep stops. A while back he "discovered" the slow ascent. Let's see, Peter Bennett has been around at least 30 years, has claimed all kinds of "expertise", and now discovers this one? Hello, mom? This guy is beyond ridiculous. He ranks up there with Mount's claim to "DIR". Maybe his conscience is getting to him after so many years of misleading crap out of D.A.N. There was another one in there about skin bends that I had to stop reading due to crying too hard from laughing. --------------------------------------------------------------------- To unsubscribe, e-mail: quest-unsubscribe@gu*.co* For additional commands, e-mail: quest-help@gu*.co* </excerpt></smaller><excerpt>****************************************** ***************************************** WARNING: All e-mail sent to and from this address will be received or otherwise recorded by the A.G. Edwards corporate e-mail system and is subject to archival, monitoring or review by, and/or disclosure to, someone other than the recipient. ******************************************************************************** **** </excerpt> -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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