On: Relativistic Spaceship

[kreeben]

>> baseball

How large is one of those, even? I much prefer to work with perfectly spherical Olympic swimming pools.

[AlexAndScripts → kreeben]

Would that be the original British Imperial SOP or the closely-related but not-quite-the-same American SOP?

[db48x → AlexAndScripts]

Actually, the American SOP is the original because the British changed the definition of the gallon in 1824, which you will notice is long after the Revolutionary War. No one in America cared, so we kept on using our customary units.