Integration Around You

Integration shows up wherever tiny contributions accumulate into meaningful totals. The fuel gauge in your car integrates consumption rate over time. The total rainfall reported after a storm is an integral of rain intensity across hours.

Train yourself to spot integration in daily life. Your electricity bill integrates power consumption (kilowatts) over time (hours) to give kilowatt-hours — that is literally an integral. A pedometer does the same trick: it integrates your step rate over a walk to report your total distance.