Was there a standard way for governments to check? Reminds me of Archimedes https://en.wikipedia.org/wiki/Archimedes#Archimedes'_principle https://en.wikipedia.

Was there a standard way for governments to check? Reminds me of Archimedes https://en.wikipedia.org/wiki/Archimedes#Archimedes'_principle https://en.wikipedia.org/wiki/Archimedes#Archimedes'_princip...