Lots of the newer cars have a Back-Up Sensor that warns the driver before the rear bumper actually comes in contact with something.

Who invented this sensor?

You probably think it was Ford, maybe GM, how about Chrysler, No? then how about Mercedes Benz, or possibly the French or Italians?

No. It was a Chinese farmer.

His invention was simple and effective. It emits a high-pitch squeal before the vehicle backs into something.

His first prototype is attached ……