ELI5: Explain Like I'm 5

Time of concentration

"Time of concentration" is a special math formula that helps us find out how long it takes for rainwater to flow from the highest point in a certain area down to the lowest point. Imagine you are playing with some toys on a hill - you put a ball on the top of the hill and watch it roll down to the bottom. Now imagine the hill is outside and it starts raining. The raindrops fall onto the hill and start to flow down just like your ball did.

The "time of concentration" formula is like a timer that helps us figure out how long it would take for all the rainwater to flow down the hill and reach the bottom. It helps us predict how much water will end up in a river or waterway if there's a heavy rainstorm. This information is important because it helps prevent flooding and makes sure that we can manage our water resources properly. So, the "time of concentration" is like an important tool that helps us understand the movement of water on a hill during a rainstorm!