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RE: Yellow Submarine (by Yefim Nikonov)
Тhis is clearly the prototype of today's modern submarines. Interesting how people have dealt with oxygen, orientation and communications.
Тhis is clearly the prototype of today's modern submarines. Interesting how people have dealt with oxygen, orientation and communications.
Now it's all pretty simple, but at that time... I assume that the air was initially supplied from the surface via hoses. But this is just my guess))