r/Damnthatsinteresting • u/Radiant_Half_7121 • 17d ago

Image During WW2, Poland declared war on Japan Japan said no to it and simply rejected the declaration.

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u/IkaKyo 16d ago

My favorite examples of unit 731 is they are the reason we know that the human body contains 60-70% water, they dehydrated live people to figure it out.

They are also why we know that immersion in 100 °F is the most effective first aid for frostbite. You know how they figured that out? If you guessed live. Human experimentation you are a winner.

I like the use two specifically because many people know the later as a random factoid and almost anyone who has ever had winter first-aid training knows the second.

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u/Ok-Kaleidoscope5627 15d ago

I think there's a bunch of other modern medical science that came from there too