Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. In 1917, two US submarines collided off the coast of San Diego and ...

The Navy’s early experience with submarines was a constant drumbeat of human tragedy. While looking for lost relics deep beneath the Pacific Ocean, mere miles from the coast of San Diego, California, ...

On a foggy December morning in 1917, three U.S. Navy submarines crept through the waters off the coast of San Diego. They were testing their limits—running performance trials in the shadow of World ...

In the midst of the Falklands War, British sailors hunting for ARA San Luis launched ordnance at the sonar and radar signals of whales, wrecks, and even flocks of seagulls — anything that might have ...