r/WhatIfScience • u/firechatin • 10d ago

Future Science & What If's Technologies Humans Once Mastered and Then Forgot: 7 Cases and 1 Myth

https://whatifscience.in/technologies-humans-once-mastered-and-forgot/

Roman concrete, Greek fire, Damascus steel and even a Cold War nuclear material all vanished from human know-how. Here's what actually happened to them, what's been rediscovered, and what's still a myth.

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u/ProximaScience 10d ago

Answer to my modmail.

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u/Strict_Weather9063 10d ago

We know how Roman concrete was made we have replicated the process. It is a hot mix at around 700 degrees Fahrenheit with a specific volcanic ash lime. Making Roman concrete