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Scientists create crystal which would allow us to breathe underwater
- gus_massa 12y agoRead the update: > Update: [...] Prf McKenzie made a calculation error. Pls note that it is not a SPOONFUL of this stuff, that we need to rid a room of oxygen. It is a bucket (10 litres). Still some details don't make sense: > A few grains contain enough oxygen for one breath, and as the material can absorb oxygen from the water around the diver and supply the diver with it, the diver will not need to bring more than these few grains. If the material is so good absorbing oxygen, it will be difficult to make it release the oxygen again. So while diving you don't need the oxygen tanks, but you need the batteries to heat the material to release the oxygen. I'd like to see the actual calculation of the necessary weight, volume and reliability. > [...] the crystal could be valuable for lung cancer patients who must carry heavy tanks around with them, [...] This user case may be more realistic, because you can plug the equipment and recharge the batteries in any building you go, and in the 12v plug of the car, but it would not be useful for a long field trip. But the story has so much hype that I'm still suspicious.