EarthDate

Light Speed Under the Sea

2:00

In 1858, Queen Victoria sent a telegraph to U.S. President Buchanan, via the first undersea cable.

The cable worked for just a few weeks, but it launched an international cable network that still dominates global communication.

We think we live in a wireless world. But it’s just the short hop from our phones and wifi to a receiving antenna. Nearly everything after that is transmitted by cable,…