Hydrogen is quite explosive at a very broad range of oxygen and hydrogen concentrations and there is a lot of valving and electrical wiring in the sort of rebreather that could use it. The Hindenburg seems safe in comparison. A guy died once who was diving by me, I did chest compression and rescue breathing for an hour and 15 minutes on him. Seeing that sort of thing up close, the phlegm, the grey skin and blue-black lips, kills any desire to work with an unnecessary and unknown risk factor like hydrogen - what does it really gain you other than a convenient way to measure testosterone? Let the big commercial dive companies like Comex mess with it, they have the resources to better limit risk. Another guy took a job I passed on due to uncontrolled risk and he died - he was 23. I'm old and have seen enough for 1 life. I made my living comm. diving, I just can't agree with exposing your body to risk and micro bubble damage and hypercapnia and oxygen toxicity etc for free. My best advice is take a commercial diving course (Federal student aid is avail) and get paid for it. You'll need the pay later for hearing aids.
@DasycottusКүн бұрын
The level of nerdiness here makes me joyous. As a baby tech diver, I salute you all. Stay safe, keep pushing the boundaries with your incredible science. ♥️🫧♥️
@wyldwiisel91262 күн бұрын
Ask comex for data they have done 532m on hydrogen
@user-lo1nn4xg6i2 күн бұрын
Unwatchable due to sound issues
@wuteva347 күн бұрын
Did HPNS kill Dave Shaw in bushman’s fumbling around with Deon Dreyers body?
@DasycottusКүн бұрын
It didn't help, but the main cause of that death was high work of breathing-the other side of that "mutually exclusive" problem. Essentially, his scrubber couldn't keep up with his CO2 output. He passed out and drowned. For the record, Dave Shaw is to these guys like Oceangate is to DSV Alvin. Dave Shaw had 333 total dives (not even technical dives) when he killed himself. By elite technical diver standards, that is nothing. It's like some guy climbing Mount Rainier once, and then deciding he's ready to solo climb K2... in winter... Without oxygen. These guys have thousands of technical dives-not to mention multiple PhD level experts in compressed gas physiology and engineering. These are true scientists at the absolute ragged edge of research and exploration... They are -the best- in the world at what they do... And I don't think it's a particularly close contest.
@freddupont96057 күн бұрын
Pr Simon Mitchell...he's a living legend in both deep technical diving and anesthesia. Dr F.D.
@xSgtBanana8 күн бұрын
Very cool
@GarettGioe9 күн бұрын
That is awesome. I love Jonathan birds, blue world.
@divingtalks25668 күн бұрын
Then you're gonna love Jonathan's talk at Diving Talks 2023 - "Diving Into the Blue World" - kzread.info/dash/bejne/eniMrcWtpbfOedY.html
@TheKosherExperience12 күн бұрын
this is great observations. I have spoke with at least 50 dive centers and instructors and i have 6 specialties under my belt which i did for the knowledge but did the instructors were good? Maybe 1 was, the rest i don't think so. This is my fear of becoming a pro, i feel i will be TERRIBLY TRAINED because the instructors are not interested in spending time with someone, they rather do a quick training and get a new student. PADis the biggest money maker with this system and it is sad they don't enforce better training. They came up with ''internship'' but in fact is just a paid training with no actual internship at all.
@divingtalks256612 күн бұрын
That’s why it is important to select the best Instructors. To be sure you have quality training and learn with the best.
@ScottKuruFreedom13 күн бұрын
this fker killed his friend.
@MegaEpicLlama14 күн бұрын
Jonathan without a filter is so unhinged. Loved it!
@divingtalks256612 күн бұрын
Jonathan Bird is an amazing storyteller!!
@nehemiahcook20 күн бұрын
18:52 I love this mindset. Keep climbing 🤿
@TanjaHase_Fronczek24 күн бұрын
Woody and Gus (Dive Talk) got me into diving but I am not helping the age thing as I am 53 🙈😂. But I love your channels and really like Dive Talks as well. So much awesome information….
@pasqualeredo25 күн бұрын
Makes sense to prohibit please from scuba diving. I'm sure there's a Fauci memo somewhere that says the Chinese made k45 facemasks are far more effective at preventing the spread of COVID than wearing a wet or dry suit, mask, and regulator while you're 6 feet away from another diver 40 or 50 feet under water
@Fabi_1987Ай бұрын
"Diving Talks" 🤣🤣....You must be a fan of the Dive Talk channel xD
@divingtalks256618 күн бұрын
Yes! We are a fan of everything related to scuba diving!! 👌🏼👌🏼
@InnocentPeacefulLake-zc5mlАй бұрын
Who amung us is gona go ice diving when we cant aford a over pricef seiko eanymore
@wegothooked2610Ай бұрын
Wondering what you actually have achieved in diving apart from being a lady and having a fake british accent ? Yes you pushing your social media hard but how many other tech divers there are who could have been invited instead of you?
@Juror63Ай бұрын
Y'all HAVE looked at the cost of dive gear? Mature divers have the disposable income. Just a thought
@DivekentАй бұрын
I am the leader of the Dive team for the shipwrecks of the Dover Straits with Stefan he is a great diver and a fantastic photographer we do not in the Dover Straits take much video but some fantastic photographs it would it would be a good presentation if you went to the show but there's not much video and done mainly photography and fantastic dives He has a book just released called ( shipwrecks of the Dover Straits )if you need to see the type of work we do
@LukasNiebelАй бұрын
Great Interview. Prof. Dr. Simon Mitchell's talk about Hydrogen Rebreathers was absolutely amazing. Excited to make my way to Diving Talks 2024 and hope to see you guys there! 😊
@divingtalks2566Ай бұрын
Thank you for your kind words. Check out the other Talks. More interesting presentations available in this channel!
@divingtalks2566Ай бұрын
We will surely meet at Diving Talks 2024 in Lisbon!
@saralorenze1781Ай бұрын
Bro, you don’t have to call the deep blue is called the ocean😂
@Vernich762Ай бұрын
I am under the water… Please help me
@ivoryjohnson4662Ай бұрын
So good to see you talking about diving I hope you have fun
@divingtalks2566Ай бұрын
Join us and compliment Jill in person. 😉
@ivoryjohnson4662Ай бұрын
Joao I look forward to your videos
@divingtalks2566Ай бұрын
And Joao, too. 😉
@JB-xd9drАй бұрын
What a fascinating presentation. Thank you. I’ve no experience of anything you and your colleagues do but I have a science background, and have the utmost of respect for you. Please keep on trailblazing. One observation, why is it that there are no younger divers involved? Clearly you have vast experience. Is that it? Or is there a degree of madness too :)?
@divingtalks2566Ай бұрын
Good point there. The ageing of diving community. That is something we should address through a serious and participated debate. But here, for the complexity of the dive, you would expect to see more experienced divers.
@kelvinbarrett5917Ай бұрын
Simon, As always, your presentations are gold! Really interesting [boys own] science going on here.
@divingtalks2566Ай бұрын
They are. By the way, Simon is coming to Diving Talks again this October. Join us in Lisbon. 😉👍🏼
@Doktracy2 ай бұрын
Your team is awesome. I’ve followed you for years,maybe since very shortly after you first reported on Scuba Board.
@divingtalks2566Ай бұрын
Cool. Join us this October in Lisbon. Simon is attending and presenting one more time. It will be great. 👍🏼😊
@user-ox6nc6ly7f2 ай бұрын
🤨breathing fuel and oxygen. diver: WOW! what an amazing dive, now i need a cigarette...🔥
@divingtalks2566Ай бұрын
Ahahahah you shouldn’t smoke. Diving or not diving. 😉😊👍🏼
@Juror632 ай бұрын
I remember O'Dive developing a subclavian bubble monitor. They may be a pretty good starting point.
@divingtalks25662 ай бұрын
There's some really exciting research going on right now! You should see David Doolette's talk on Venous Gas Emboli (VGE) for more insight.
@evangaudet2 ай бұрын
4 and a half hours of decompressing. Jeez.
@divingtalks25662 ай бұрын
That’s a loooong time. True! 😉
@baruchben-david41962 ай бұрын
Hydrogen and oxygen. Reminds me of the Hindenburg...
@kinnymane85932 ай бұрын
I’m not even a diver and this BLOWS my mind!!! Humans go hard I love watching innovation and the limited get pushed
@divingtalks25662 ай бұрын
An incredible achievement. Watch some of the other talks. They’re great!
@mikeb.39182 ай бұрын
Wow, seriously pushing the limits. Has this cave been mapped by ROV?
@divingtalks25662 ай бұрын
We don’t have an answer for you. Maybe someone of the team joins the discussion and clarifies.
@benjaminnevins52112 ай бұрын
Your own personal hindenberg.
@marksmadhousemetaphysicalm29382 ай бұрын
What about xenon? It is considered an ideal anesthetic gas…no cardiac effects, no agonistic or antagonistic pharmacological effects with other anesthetic drugs…and its induction is smooth…it’s just expensive…I wonder if a small amount could be used? It is heavy…I know of it from the anesthetic side obviously and am not even an armchair diver…so I’m just asking those who know…? I am an emergency nurse and studying for my emergency nurse practitioner…I don’t handle gaseous anesthetics obviously but we must understand them…so I ended up here…and we do get divers of course from diving clubs and those in the Chesapeake Bay and Atlantic Ocean off boats…
@mikkel46063 күн бұрын
gas too thick
@citruscollins2 ай бұрын
Not a diver (not even much of a swimmer), the thought of cave diving terrifies me. Even watching skilled and experienced divers do it fills me with a mild dread. But this was absolutely fascinating. Every once in a great while the algorithm makes an outstanding recommendation. … something, something broken clock. 👍
@divingtalks25662 ай бұрын
It’s an acquired taste. 😀
@divingtalks25662 ай бұрын
Check out the other Talks. There were other really interesting ones. For example the the two about the underwater habitats: #DEEP by Phil Short - another highly skilled diver, and #PROTEUS by Brian Helmuth. Both worth watching.
@killeresk2 ай бұрын
Very interesting to watch how those kinds of dives are done. Great presentation.
@divingtalks25662 ай бұрын
It is indeed; a great presentation about an incredible achievement. What the other Talks. Many more interesting topics!
@scottnj25032 ай бұрын
Fortune favours the bold.
@Guds7772 ай бұрын
Just pee in the suit, that will keep you warm... :D
@Jason-vn5xj2 ай бұрын
I’m not a diver, but I was a respiratory therapist who worked in a hospital hyperbaric medicine area for a while. This is absolutely bananas and I love every minute of it. So awesome.
@divingtalks25662 ай бұрын
That’s a cool comment! Take a look at the other Talks, many more interesting topics.
@srmj713 ай бұрын
Hydrogen, a.k.a rocket fuel. That's because it's really good at blowing up. But yeah, I would've done the same damn thing.. probably a couple of times.
@Mtlmshr3 ай бұрын
Boys will be Boys!
@gewinnste3 ай бұрын
Was this last explosivity test with 100% hydrogen or the breathing mix of 35% H2, 3% O2, rest helium? I hope it was the former.
@divingtalks25663 ай бұрын
That’s a really small detail in this giant achievement. Nonetheless, it was a blast! 😁
@gewinnste3 ай бұрын
@@divingtalks2566Sure, it was a big achievement and I'm excited for further advances in this regard. But as a scientist, I'm still interested in whether the 3% O2 + 35% H2 are flammable or not. It's an important question, isn't it?
@divingtalks25662 ай бұрын
@@gewinnste it is. We don’t have an answer to that question. May be someone from the team comes here and reply.
@gewinnste3 ай бұрын
HPNS happens because of the helium, right? It's not just the high pressure itself that causes it (?)
@divingtalks25663 ай бұрын
Pressure impacts the way our organism deals with gases in a mixture.
@boredgrass3 ай бұрын
A diver can be expected to profit from not being dead...
@divingtalks25663 ай бұрын
That is a strong and 100% correct statement. 😂
@richardshal3 ай бұрын
You have to ask why an extreme tech dive exploring mixtures took place in a remote cave. There must be less o2 in new ze.
@bobm23313 ай бұрын
That presenter was as focused and clear as any I've listened too. Also if there's a level beyond amazing this was it. Well done folks.
@divingtalks25663 ай бұрын
Thank you for your kind words. This is the type of content and presentation skills we want to have on our show. Watch some of the others. More interesting content being shared in the Diving Talks KZread channel.
@R.Daneel2 ай бұрын
I came to say the same thing! What a great presenter. I'd have watched an hour on the advancements in paint-drying technology.
@divingtalks25662 ай бұрын
Check out the other Talks. There were other really interesting ones. For example the the two about the underwater habitats: #DEEP by Phil Short - another highly skilled diver, and #PROTEUS by Brian Helmuth. Both worth watching.
@JeffBrazeel-fe4wc3 ай бұрын
BOOM SHAKA LAKA!!!! LMAO
@kingmasterlord3 ай бұрын
2:40 well, how much difference would thermoelectrics make? can your bodyheat power a peltier chip enough to warm your extremities?
@divingtalks25662 ай бұрын
All great questions. Simon is once again coming to Lisbon for the Diving Talks October 18-20 . It's your chance to come and ask these questions to the man himself!
@horwoodg3 ай бұрын
My anxiety just sky rocketed the deeper you went. Amazing footage and kudos to you guys.
@divingtalks25663 ай бұрын
Huge achievement for the group of divers portrayed in this Talk! Check out the other Talks. Many other interesting topics presented at the show and available in our channel.
Пікірлер
Hydrogen is quite explosive at a very broad range of oxygen and hydrogen concentrations and there is a lot of valving and electrical wiring in the sort of rebreather that could use it. The Hindenburg seems safe in comparison. A guy died once who was diving by me, I did chest compression and rescue breathing for an hour and 15 minutes on him. Seeing that sort of thing up close, the phlegm, the grey skin and blue-black lips, kills any desire to work with an unnecessary and unknown risk factor like hydrogen - what does it really gain you other than a convenient way to measure testosterone? Let the big commercial dive companies like Comex mess with it, they have the resources to better limit risk. Another guy took a job I passed on due to uncontrolled risk and he died - he was 23. I'm old and have seen enough for 1 life. I made my living comm. diving, I just can't agree with exposing your body to risk and micro bubble damage and hypercapnia and oxygen toxicity etc for free. My best advice is take a commercial diving course (Federal student aid is avail) and get paid for it. You'll need the pay later for hearing aids.
The level of nerdiness here makes me joyous. As a baby tech diver, I salute you all. Stay safe, keep pushing the boundaries with your incredible science. ♥️🫧♥️
Ask comex for data they have done 532m on hydrogen
Unwatchable due to sound issues
Did HPNS kill Dave Shaw in bushman’s fumbling around with Deon Dreyers body?
It didn't help, but the main cause of that death was high work of breathing-the other side of that "mutually exclusive" problem. Essentially, his scrubber couldn't keep up with his CO2 output. He passed out and drowned. For the record, Dave Shaw is to these guys like Oceangate is to DSV Alvin. Dave Shaw had 333 total dives (not even technical dives) when he killed himself. By elite technical diver standards, that is nothing. It's like some guy climbing Mount Rainier once, and then deciding he's ready to solo climb K2... in winter... Without oxygen. These guys have thousands of technical dives-not to mention multiple PhD level experts in compressed gas physiology and engineering. These are true scientists at the absolute ragged edge of research and exploration... They are -the best- in the world at what they do... And I don't think it's a particularly close contest.
Pr Simon Mitchell...he's a living legend in both deep technical diving and anesthesia. Dr F.D.
Very cool
That is awesome. I love Jonathan birds, blue world.
Then you're gonna love Jonathan's talk at Diving Talks 2023 - "Diving Into the Blue World" - kzread.info/dash/bejne/eniMrcWtpbfOedY.html
this is great observations. I have spoke with at least 50 dive centers and instructors and i have 6 specialties under my belt which i did for the knowledge but did the instructors were good? Maybe 1 was, the rest i don't think so. This is my fear of becoming a pro, i feel i will be TERRIBLY TRAINED because the instructors are not interested in spending time with someone, they rather do a quick training and get a new student. PADis the biggest money maker with this system and it is sad they don't enforce better training. They came up with ''internship'' but in fact is just a paid training with no actual internship at all.
That’s why it is important to select the best Instructors. To be sure you have quality training and learn with the best.
this fker killed his friend.
Jonathan without a filter is so unhinged. Loved it!
Jonathan Bird is an amazing storyteller!!
18:52 I love this mindset. Keep climbing 🤿
Woody and Gus (Dive Talk) got me into diving but I am not helping the age thing as I am 53 🙈😂. But I love your channels and really like Dive Talks as well. So much awesome information….
Makes sense to prohibit please from scuba diving. I'm sure there's a Fauci memo somewhere that says the Chinese made k45 facemasks are far more effective at preventing the spread of COVID than wearing a wet or dry suit, mask, and regulator while you're 6 feet away from another diver 40 or 50 feet under water
"Diving Talks" 🤣🤣....You must be a fan of the Dive Talk channel xD
Yes! We are a fan of everything related to scuba diving!! 👌🏼👌🏼
Who amung us is gona go ice diving when we cant aford a over pricef seiko eanymore
Wondering what you actually have achieved in diving apart from being a lady and having a fake british accent ? Yes you pushing your social media hard but how many other tech divers there are who could have been invited instead of you?
Y'all HAVE looked at the cost of dive gear? Mature divers have the disposable income. Just a thought
I am the leader of the Dive team for the shipwrecks of the Dover Straits with Stefan he is a great diver and a fantastic photographer we do not in the Dover Straits take much video but some fantastic photographs it would it would be a good presentation if you went to the show but there's not much video and done mainly photography and fantastic dives He has a book just released called ( shipwrecks of the Dover Straits )if you need to see the type of work we do
Great Interview. Prof. Dr. Simon Mitchell's talk about Hydrogen Rebreathers was absolutely amazing. Excited to make my way to Diving Talks 2024 and hope to see you guys there! 😊
Thank you for your kind words. Check out the other Talks. More interesting presentations available in this channel!
We will surely meet at Diving Talks 2024 in Lisbon!
Bro, you don’t have to call the deep blue is called the ocean😂
I am under the water… Please help me
So good to see you talking about diving I hope you have fun
Join us and compliment Jill in person. 😉
Joao I look forward to your videos
And Joao, too. 😉
What a fascinating presentation. Thank you. I’ve no experience of anything you and your colleagues do but I have a science background, and have the utmost of respect for you. Please keep on trailblazing. One observation, why is it that there are no younger divers involved? Clearly you have vast experience. Is that it? Or is there a degree of madness too :)?
Good point there. The ageing of diving community. That is something we should address through a serious and participated debate. But here, for the complexity of the dive, you would expect to see more experienced divers.
Simon, As always, your presentations are gold! Really interesting [boys own] science going on here.
They are. By the way, Simon is coming to Diving Talks again this October. Join us in Lisbon. 😉👍🏼
Your team is awesome. I’ve followed you for years,maybe since very shortly after you first reported on Scuba Board.
Cool. Join us this October in Lisbon. Simon is attending and presenting one more time. It will be great. 👍🏼😊
🤨breathing fuel and oxygen. diver: WOW! what an amazing dive, now i need a cigarette...🔥
Ahahahah you shouldn’t smoke. Diving or not diving. 😉😊👍🏼
I remember O'Dive developing a subclavian bubble monitor. They may be a pretty good starting point.
There's some really exciting research going on right now! You should see David Doolette's talk on Venous Gas Emboli (VGE) for more insight.
4 and a half hours of decompressing. Jeez.
That’s a loooong time. True! 😉
Hydrogen and oxygen. Reminds me of the Hindenburg...
I’m not even a diver and this BLOWS my mind!!! Humans go hard I love watching innovation and the limited get pushed
An incredible achievement. Watch some of the other talks. They’re great!
Wow, seriously pushing the limits. Has this cave been mapped by ROV?
We don’t have an answer for you. Maybe someone of the team joins the discussion and clarifies.
Your own personal hindenberg.
What about xenon? It is considered an ideal anesthetic gas…no cardiac effects, no agonistic or antagonistic pharmacological effects with other anesthetic drugs…and its induction is smooth…it’s just expensive…I wonder if a small amount could be used? It is heavy…I know of it from the anesthetic side obviously and am not even an armchair diver…so I’m just asking those who know…? I am an emergency nurse and studying for my emergency nurse practitioner…I don’t handle gaseous anesthetics obviously but we must understand them…so I ended up here…and we do get divers of course from diving clubs and those in the Chesapeake Bay and Atlantic Ocean off boats…
gas too thick
Not a diver (not even much of a swimmer), the thought of cave diving terrifies me. Even watching skilled and experienced divers do it fills me with a mild dread. But this was absolutely fascinating. Every once in a great while the algorithm makes an outstanding recommendation. … something, something broken clock. 👍
It’s an acquired taste. 😀
Check out the other Talks. There were other really interesting ones. For example the the two about the underwater habitats: #DEEP by Phil Short - another highly skilled diver, and #PROTEUS by Brian Helmuth. Both worth watching.
Very interesting to watch how those kinds of dives are done. Great presentation.
It is indeed; a great presentation about an incredible achievement. What the other Talks. Many more interesting topics!
Fortune favours the bold.
Just pee in the suit, that will keep you warm... :D
I’m not a diver, but I was a respiratory therapist who worked in a hospital hyperbaric medicine area for a while. This is absolutely bananas and I love every minute of it. So awesome.
That’s a cool comment! Take a look at the other Talks, many more interesting topics.
Hydrogen, a.k.a rocket fuel. That's because it's really good at blowing up. But yeah, I would've done the same damn thing.. probably a couple of times.
Boys will be Boys!
Was this last explosivity test with 100% hydrogen or the breathing mix of 35% H2, 3% O2, rest helium? I hope it was the former.
That’s a really small detail in this giant achievement. Nonetheless, it was a blast! 😁
@@divingtalks2566Sure, it was a big achievement and I'm excited for further advances in this regard. But as a scientist, I'm still interested in whether the 3% O2 + 35% H2 are flammable or not. It's an important question, isn't it?
@@gewinnste it is. We don’t have an answer to that question. May be someone from the team comes here and reply.
HPNS happens because of the helium, right? It's not just the high pressure itself that causes it (?)
Pressure impacts the way our organism deals with gases in a mixture.
A diver can be expected to profit from not being dead...
That is a strong and 100% correct statement. 😂
You have to ask why an extreme tech dive exploring mixtures took place in a remote cave. There must be less o2 in new ze.
That presenter was as focused and clear as any I've listened too. Also if there's a level beyond amazing this was it. Well done folks.
Thank you for your kind words. This is the type of content and presentation skills we want to have on our show. Watch some of the others. More interesting content being shared in the Diving Talks KZread channel.
I came to say the same thing! What a great presenter. I'd have watched an hour on the advancements in paint-drying technology.
Check out the other Talks. There were other really interesting ones. For example the the two about the underwater habitats: #DEEP by Phil Short - another highly skilled diver, and #PROTEUS by Brian Helmuth. Both worth watching.
BOOM SHAKA LAKA!!!! LMAO
2:40 well, how much difference would thermoelectrics make? can your bodyheat power a peltier chip enough to warm your extremities?
All great questions. Simon is once again coming to Lisbon for the Diving Talks October 18-20 . It's your chance to come and ask these questions to the man himself!
My anxiety just sky rocketed the deeper you went. Amazing footage and kudos to you guys.
Huge achievement for the group of divers portrayed in this Talk! Check out the other Talks. Many other interesting topics presented at the show and available in our channel.