Back up sensor

Many 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?

I'll bet you think it was Ford, maybe GM; how about Chrysler?

No.

Then how about Mercedes Benz, or possibly the French or Italian car manufacturers?

No.

It was a Japanese farmer named Kawasaki.........

His invention was simple and effective.

It emitted a high-pitch squeal just before the vehicle itself backs into something.

Here's where the idea came from ....

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