Learn about how trains know when to start moving using red flags and lanterns. This simple guide explains the important signals that keep trains safe.
Okay, let's imagine a train is waiting at a station. Just like when you want to play a game, you need a signal to start, right? For trains, this signal can be a red flag or a lantern.
1. What is a signal? A signal is something that tells us what to do. It's like a green light that says 'Go!' or a red light that says 'Stop!'.
2. The red flag or lantern: When a train is ready to leave, someone waves a red flag or shows a lantern. This tells the train conductor, who is the person driving the train, that it can start moving.
3. Why is this important? This is very important for safety! It helps make sure that the train leaves at the right time and doesn't bump into anything else. Just like you have rules when you play to make sure everyone is safe!
So, when you see a red flag or lantern, think of it like a magic signal that helps the train get ready for the fun journey ahead!