Railway coupling

Imagine that you have two toy trains that you want to connect together to make one long train. But you can't just stick them together like magnets, you need something that will keep them securely attached while they move.

So you use something called a railway coupling which is like a special lock for toy trains. It has two parts, one on each train. When you bring the two parts together, they fit perfectly and lock into place. This way, the two trains are securely connected and won't come apart while they move.

Real trains use similar couplings, but they are much bigger and stronger. They are usually made of metal and can withstand a lot of force. When two train cars need to be connected, a worker called a brakeman or a conductor will climb on top of the cars and use a special tool to line up the couplings and lock them together.

The couplings also allow the train to turn corners smoothly without causing the cars to separate or tip over. They are an important part of keeping the train safe and on track.