Ian Robinson on Nostr: TIL that if the rocky part of the Earth were a smooth sphere, then the oceans would ...

TIL that if the rocky part of the Earth were a smooth sphere, then the oceans would cover it completely to a depth of about 2 kilometres (1.2 miles).

Of course, the actual Earth isn’t a smooth sphere, so we have ocean basins and continents.

#Geology #Oceanography