in june 2022, three months before the attack, that six members of Ukraine’s special operations forces were going to rent a boat and use a submersible vehicle to dive to the seabed using oxygen and helium for breathing, in order to sabotage the pipeline.
In July (one month later, 2 months before the attack), the UN security council heard investigators had found traces of undersea explosives in samples from a yacht, but that they were unable to reliably establish the identity or motives of those involved or whether it was the work of a specific country.
Apparently it’s to help deal with how oxygen and nitrogen can both have a bit of a narcotic effect at high pressures. Helium doesn’t do this and is generally harmless to breathe so long as you’re still getting enough oxygen, so if some or all of the nitrogen is replaced with helium then it can mitigate the problem by reducing the amount of nitrogen you’re breathing
A leaked US defence document, reported by the Washington Post, showed the CIA had been tipped off by an allied European agency in June 2022, three months before the attack, that six members of Ukraine’s special operations forces were going to rent a boat and use a submersible vehicle to dive to the seabed using oxygen and helium for breathing, in order to sabotage the pipeline. But the leaked US document said the planned operation had been put on hold.
And, of course, that’s not the point of the article in the slightest. It’s that two additional explosions were identified on top of the one original one.
Key points:
Anyone know why they use helium too?
Apparently it’s to help deal with how oxygen and nitrogen can both have a bit of a narcotic effect at high pressures. Helium doesn’t do this and is generally harmless to breathe so long as you’re still getting enough oxygen, so if some or all of the nitrogen is replaced with helium then it can mitigate the problem by reducing the amount of nitrogen you’re breathing
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Full text of that first paragraph:
And, of course, that’s not the point of the article in the slightest. It’s that two additional explosions were identified on top of the one original one.