this post was submitted on 11 Jun 2026
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me_irl
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Someone should make a site that quizzes you on time travel knowledge. Go through the ages: how do you start a fire, how do you make steel & what's the best method of smelting, what is germ theory & the best methods for preserving food, what are the causes of common diseases, how do you make a steam engine, what is penicillin & how do you produce it at scale, how do you make a battery, how do you make a solar panel, how does nuclear energy work, etc...
Definitely recommend watching Doctor Stone. Great anime and shows the science well, although taking few liberties with obtaining the amount of metals you'd need.
Penicillin is easy. You just keep injecting people with mouldy watermelons until the appropriate result appears.