Torpedoes, clippers, Zubian, and favorite naval facts

What are the panel's favorite naval-history facts?

The choices include torpedoes developing from mines into the Whitehead weapon, fast First World War clippers, Rozhestvensky's binoculars, and the stories of HMS Zubian and Porcupine.

Early torpedoes began as mine-like devices that attracted ridicule before the Whitehead torpedo developed into an enduring naval weapon. Another recollection concerns surviving four-, five-, and six-masted clippers crossing the Indian Ocean during the First World War faster than most contemporary warships. Admiral Rozhestvensky throwing his binoculars at his fleet supplies a command anecdote. HMS Zubian and Porcupine prompt jokes about the Royal Navy apparently being able to produce replacement destroyers from a secret factory.