As someone moving to CCR this was incredible. Even at 9 years old
@UnderseaCaveman10 жыл бұрын
Awesomely Enlightening, thanks for posting. I think the engineer's question (and he asked to verify) was correct (what he was seeking). The End Tidal concentration was shown to be the highest concentration in the exhalation evolution, so electronically, the engineer only needs to capture the signature's PEAK VALUE (of CO2 concentration)...and that would be End Tidal CO2 concentration. Use a Peak Detector Circuit for End Tidal Examination. Aloha!
@davidmccaffery3 жыл бұрын
Great share - good to see you diagnosed the cause 👏🏻
@ElliottJessup11 жыл бұрын
Fantastic, thank you for posting this!
@ivoryjohnson46623 жыл бұрын
I am so glad I found this!!!!
@ersmed Жыл бұрын
Something that doesn’t make sense is the explanation of ( and his physician students struggle with) is the notion of flow restriction at depth. The Bernoulli equation is 1/2 Area * density of gas * velocity squared. So sure density of gas increases with depth but to achieve the same mass flow rate the velocity reduces exponentially. The explanation of airway restriction as a result of increased exhalation effort (velocity) would have to weezing at the beginning of an exhale not the tail end of it.
@RecDiverX11 жыл бұрын
thank you, that is a lot of valuable information!
@kevin_howell3 жыл бұрын
I don’t even dive yet. Going to do my open water soon but this was very interesting
@Doc87762 жыл бұрын
Did you get your Open Water?
@kevin_howell2 жыл бұрын
@@Doc8776 Not yet unfortunately. Busy building a house… hopefully this summer.
@coopercarter6 жыл бұрын
This guy is really an amazing presenter
@gavinsmith284 жыл бұрын
One comment @ 20:40 - yes, the work of breathing does increase with depth, but as the gas is also denser, you’re also getting more gas into your lungs with each breath
@gavinsmith284 жыл бұрын
Dragomir Ronilac obviously, but that’s at significant depth...
@jimmydryhands92882 жыл бұрын
Does the AP evp rebreather now have end tidal co2 monitoring?