Who is John Harrison?

Who is John Harrison? He’s like a super-smart clockmaker who solved one of the biggest problems at sea, how to tell time when you’re on a boat.

Imagine you're on a big ship, out in the ocean. The sun might be hiding behind clouds, and there's no phone or GPS to help you find your way home. That’s where John Harrison came in. He made something called a marine chronometer, which is like a really accurate clock that keeps time even when it’s rocking on the waves.

Think of it like having a special watch that never gets confused, no matter how bumpy your ride is. This watch helped sailors know exactly what time it was, and from that, they could figure out where they were. Without it, ships might have gotten lost for days or even weeks.

Before John Harrison’s clock, people used the sun to tell time. But on a ship in the middle of the ocean, you can’t always see the sun. His invention changed how sailors traveled, it was like giving them a map that moved with them!