After having to watch many frustratingly confusing explanations, which almost never even attempt at explaining the science with examples (like you do), this explanation is, by far, the best. Thank you.
I’ve been using your videos to study as a pharmacist and what a pleasant surprise that you even covered this topic!! I’ve been binging cave diving disaster videos and wanted to understand the physiology behind the incidents 👍
Thank you for explaining so well what happens in nitrogen sickness. I watched five videos before this one and was still confused, but you helped me understand what is happening in the body's respiratory system through your clear and straightforward explanation. Well done!
Amazing! I realize I understood absolutely nothing before that video. The whole physics explained with no mumbojumbo. Should be transposed by all dive agencies - I’ll never be able to reproduce the whole argumentation, just watching with mental satisfaction 🎃
This dude is hands down the best channel I have seen on here for teaching biological/physiological/anatomical concepts Eddie woo is also on a similar level for maths
Hello Dr Mike Thanks for that and for others videos like henry's, dalton, boyle's laws and also respiratory and circulatory system and few others video. Im scuba diving instructor and ill have to teach those things to my future students. You explained that in easy clearly and really simple way! You are great! :) Both of you have good channel! ;)
I think something might be wrong. But first: very good video!! Very well explained, congratulations. What you call "Nitrogen sickness" it's actually called narcosis, and it has been found that oxygen has basically the same narcotic effect as nitrogen at depth. I take this information from PADI enriched air nitrox diving instructor manual 2023 Again, good job! Looking forward to read your input on the topic. Thanks!
you said each ATA decreases the volume of gas by 1/2 but it is really 1/2 of the volume that was left. So you never get to zero gas volume, or did I miss something??
I understand we have known about these fluid dynamics before scuba became mainstream, but how many scuba pioneers were injured or died perfecting the science of deep diving?
The analogy between 1l of gas (0n the left side scheme) and the gas inside lungs is not so relevant since the volume inside lungs is not changing (chest volume inside ribcage is the same) and water is not going into breathing space. The pressure on the whole external body however is changing. So...?!
how is there an atmosphere below water? Isn't atmosphere the envelope of gases surrounding the earth? Also arent you breathing with an oxygen tank? im struggling to connect the dots...
You can use Henry's law, C=P x solubility (concentration of dissolved gas = partial pressure x solubility), and an understanding of PV=nRT. As partial pressure increases with depth, the concentration of the dissolved gas increases (more nitrogen dissolved in blood). As divers come back up, pressure decreases and volume increases (by PV=nRT) which can lead to bubbles of nitrogen.
