Inertial measurement unit

An inertial measurement unit is like a little gadget that can tell you how you're moving around. It has three tiny things inside that measure how fast you're going and which direction you're heading in.

Imagine you're sitting in a car, and the driver suddenly hits the gas pedal very hard. You might feel yourself being pushed back into your seat, and you know you're going faster. The inertial measurement unit can measure that acceleration and say, "Hey, we're moving faster now!"

But it can also measure when you're turning left or right or even up and down, like when you go over a big bump in the road. It does this by using something called gyroscopes and accelerometers.

A gyroscope is like a little spinning top that can tell which direction is up and which way you're turning. The accelerometers measure how much you're speeding up or slowing down.

So, when you put all of these things together, the inertial measurement unit can tell you a lot about how you're moving. People use these devices in things like airplanes, drones, and even smartphones to help figure out where they are and where they're going.