Aside:
Transatlantic Telegraph Cables: first built and deployed in 1857, 1866
These allowed us to communicate overseas without sending mail on boats.
These cables are thick and thousands of miles long, stretching from North America to Europe
-In 1929, an earthquake caused a turbidity current of the coast of Newfoundland
-Currents were strong enough to BREAK several Transatlantic cables.
-What did we learn?
