OT - inventor of back up sensor for cars

I just learned that it was a Chinese farmer that invented the first back up sensor for cars. Photo shows when back up collision is eminent that sensor emits a loud squeal.
https://lh5.googleusercontent.com/-esGe0xRKPq4/VFHFxp4tzDI/AAAAAAAAF_I/wDtZm2PXI0A/s2560/1414645187530.jpeg
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On 1/15/2018 9:32 AM, Frank wrote:

OMG, what a way to start my day.
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https://youtu.be/zqjtz3rEPG0

https://youtu.be/zqjtz3rEPG0

--
Imagine you are a child in your mother's womb, can you detect light?
Only during ballet practice.
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Do you think he popped a nut when he touched the fence?
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