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M Dee DubroffView Comment
"Copper, which is said to activate curative enzymes in the body when it comes in contact with the body's trigger points."
While there is such a thing as copper enzymes and curative effects on enzymes copper itself is not known to have an active effect on them. That's just a load of BS quack if ever I saw one. I enjoy inventorspot on a regular basis for fun and interesting articles but this is just blatant pseudoscientific crap.
Without a complete closed outer shell to absorb the outside pressure, it's impossible to create a non changeable air pressure environment in a Helmet.
With rising outside water pressure the water will enter the helmet at the divers neck, if the outside pressure is not compensated with an equal pressure of air inside the helmet.
Therefore the ears will pop and without the possibility to reach your nose with your hand to close the nostrils, it will be impossible to perform the proceeder for equalizing the pressure inside the helmet with the pressure inside the divers head.
Also, since the rest of the divers body is subject to the outside water pressure, it will be impossible for the diver to breathe in if the air supply from the helmet doesn't equalize the pressure to his body and lungs.
Maybe the designer should not only take courses in design but also spend some time in physiks or even better, learn how to dive.
That goes for the editors of this article as well.
This invention will never work in the real world.
I don't think this is a viable product given the weight of the scrubber, oxygen and dilutant in the helmet and thus neck. I think this would annoy the diver and negatively affect trim. There are a few other issues or potential issues which I think will ultimately reduce the ability to sell the principles and cost of the kit. Couldn't really comment more with more details or time.View Comment
This guy has no idea whatsoever. Someone else wrote the following and I agree:
"No more popping ears" - so, the plan is to keep the helmet at 1ATM...ignoring the pure oxygen problem, more than a metre or two down and your lungs wont be strong enough to move against the pressure. Go much deeper and your organs will be vying for relocation to your skull.
There's no way around gas laws. Period. This is a cute piece of design thought bubble, but has zero practical application as it ignores the science (reality) of actually sustaining human life under water.
It's also devoid of any redundancy. Your helmet floods, the electronics pack it in, the gas supply runs out, the scrubber is saturated...so many ways to die, and you'd still need to carry bail-out gas, and all the other stuff too. Oh, and the "lightweight material saving the diver's neck muscles" comment - ummm...he's never dived apparently, as we all know, our bodies and equipment become close to neutral in the water - hell even the 30kg DPVs are only slightly negative!View Comment
Nice drawings and photoshopping, but the reality is that this product cannot work. Let's deal with the deadly obvious first. This helmet claims to maintain 1ATM pressure. That's impossible. The rest of your body, including the blood going into the head, is at additional hydrostatic pressure. Purely on the physics of physiology, you cannot have two pressures in the body and keep the body functioning, It will either stabilize at the same pressure, or you'll kill the person by cutting off the blood. Second, CO2 scrubbers in rebreathers are large for a reason. There has to be enough media to grab enough CO2 as it passes by. It's not an efficient filter. It's a volume filter. Pack it too tightly, and you can't breathe through it. Plus, scrubbers expire when a certain percentage is saturated. There's no way to undo this, and it's easy math to show why a small scrubber would fail quickly (aside from the fact that it's not large enough to do its job). You still need an O2 source too. When you breathe, you combine your carbon exhaust with oxygen in the cells. That's what the scrubber is filtering out. Which means that after about 5 breaths of air (the average body consumes about 20% of the available atmospheric oxygen in each breath, or a consumption rate of 4% SpO2 in each breath), meaning that you need a constant source of O2 in the circuit, and you still need an inert gas (typically Nitrogen) for the rest of the air volume. Probably not last, and certainly not least, your body compresses gas into blood solution in pressures exerted on the body underwater. That means your air consumption increases due to Boyle's law. What is the source of air from this helmet for that? There's also the issue of pressure regulation for demand breathing. It has to match the pressure of water at depth, or the person will suffocate.
This is beyond a stupid idea that has no chance at reality. Not even a remote one. The physics simply don't exist. But the person with the imagination to think this up would know that if they took just one day of an Open Water Scuba Diver course. This is common knowledge to everyone that is scuba certified. This person deserves a smack in the back of the head for trying to "invent" a solution for something of which they have absolutely no knowledge whatsoever.View Comment
Interesting concept, but fraught with challenges. The CO2 scrubbing requires materials and reaction time/space, not much room in here for that. Likewise, as oxygen is metabolized it will need to be replaced, again no room for O2 storage here. Where would the standing volume of air that you'd want to be there on demand be in this, the space between the head and the helmet? Rebreathers adjust O2% up and down depending on depth, so you need to have both O2 and diluent. Plus, you need a "bailout" bottle, conveniently ignored here. Cool concept, but fundamentally flawed for execution. :(View Comment
There's a lot of things wrong with this design....
- where is the divers exhaled gas collected, to enable them to inhale it again once the CO2 has been removed. You would need an artificial "lung" of around 4 litres to allow for this
- where is the scrubber material stored to remove the CO2? This would also require a sizeable container.
- how is the condensation and spit removed?
- blue tooth technology will only work underwater across very limited distances, the purer the water the less the distance