The Witness - Wheels - - MOTORING -

MOST of the new­est cars have a “Back-Up Sen­sor” that warns the driver be­fore the rear bumper ac­tu­ally comes in con­tact with some­thing.

Most peo­ple prob­a­bly think that this valu­able fea­ture came out of the minds of engi­neers, but it was re­cently dis­closed that the con­cept was first de­vel­oped by a Chi­nese farmer.

His in­ven­tion was sim­ple and ef­fec­tive.

See photo of his back-up sen­sor.

It emits a high-pitched squeal when the ve­hi­cle backs into some­thing.

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