Scientists Finally Open 400-Year-Old Shipwreck Padlock

A mysterious old lock from a sunken ship has been cracked using high-tech scans, solving a centuries-old puzzle.

For 400 years, a lock from a sunken ship stayed shut. Nobody knew what was inside. Nobody even knew how to open it. Now, experts have finally cracked the code. The lock came from a ship that sank off the coast of Wales a long time ago. It was a puzzle that lasted for centuries. The lock is special because it works like a modern gym locker. It uses a combination of letters to open, rather than a key. Because the lock was so old and rusty, experts were afraid to force it open. They didn't want to break it by accident. Instead, they used a CT scanner. This is the same type of machine doctors …