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Speaker 1: Welcome to brain Stuff from how Stuff works dot com.

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Speaker 1: We're Smart Happens brought to you by Pisa. We all

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Speaker 1: have things we like to think about. Online fraud shouldn't

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Speaker 1: be one of them, because with every purchase, Visa prevents, detects,

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Speaker 1: and resolves online fraud safe Secure Visa, Hi and Marshall

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Speaker 1: Brain with today's question. Could an anti lock braking system

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Speaker 1: detect a flat tire in a car? And anti lock

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Speaker 1: braking system is a system that helps the driver to

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Speaker 1: avoid skids during panic stops. In a car with normal brakes,

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Speaker 1: all four wheels will lock and cause the card to

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Speaker 1: skid if the driver jams on the brakes in a

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Speaker 1: panic situation, the problems with skidding our first, the car

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Speaker 1: will actually take longer to stop. In second, the driver

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Speaker 1: loses all control of the vehicle, and the anti lock

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Speaker 1: braking system lets a computer monitor of the wheels. If

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Speaker 1: one of the wheels locks, the computer compulsed the brake

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Speaker 1: on that wheel, so the wheel keep spinning a little bit.

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Speaker 1: Because the wheels continue to spin, the driver can continue

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Speaker 1: to control the car with the steering wheel. The computer

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Speaker 1: census rotation using a rotation sensor on each wheel. If

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Speaker 1: the computer were programmed correctly, and if there were a

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Speaker 1: light on the dashboard, then the computer could detect a

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Speaker 1: flat tire and warn you about it. What the computer

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Speaker 1: could do is look at different rotational speeds For one

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Speaker 1: out of the four wheels, a flat tire would spin

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Speaker 1: faster than a properly inflated tire, So the computer would

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Speaker 1: look for one tire spinning faster than the other three

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Speaker 1: on average over the course of a period of time

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Speaker 1: that it could warn the driver by activating the light

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Speaker 1: on the dashboard. There are several production cars that use

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Speaker 1: this technique, starting with two thousand six models. The National

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Speaker 1: Highway Transportation Safety Administration requires that all cars have some

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Speaker 1: kind of tire US You're monitoring system. Do you have

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Speaker 1: any ideas or suggestions for this podcast? If so, please

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Speaker 1: send me an email at podcast at how stuff works

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Speaker 1: dot com. For more on this and thousands of other topics,

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Speaker 1: go to how stuff works dot com.