incredible

neutralbipolar2@lemmy.world to Lemmy Shitpost@lemmy.world – 1811 points –
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Making an "ouch" device or basic heater is something I could do.

Even a battery I could make a simple alumium air battery cell. Or lemon battery. But I'd be viewed like a sorcerer asking for foreign ingredients like salt, aluminum, copper and zinc.

Aluminum would be nearly impossible to obtain, it's actually my preferred grab in a hypothetical "You're going back in time and can take one thing" situation

Yep, it was worth more than gold before modern methods made it easy to isolate.