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Honda Built Navigation Before GPS Using Helium, Transparent Maps and a Glowing Green Dot

There was a time when getting lost required some commitment. A driver would unfold a road map across the steering wheel, locate two towns that appeared to be printed directly on top of one another, th

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Highway Rumble Strips Are Designed to Sound Awful, but Making Them Quieter Could Save Lives Too

One tire wanders across the painted line and the previously quiet cabin erupts with a harsh mechanical growl. The steering wheel trembles, the seat vibrates and, for half a second, it feels as if some

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That Concrete Highway Wall Has a Surprisingly Clever Way of Redirecting a Crashing Car

A concrete barrier beside a highway looks like one of the least forgiving objects a car could encounter. It is heavy, rigid and often positioned only a few feet from traffic moving at serious speed.

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Your 1980s Sports Car May Stop Counting at 85 MPH. The Government Told It To

Open the door of an American-market performance car from the early 1980s and something may appear terribly wrong. There is the dramatic driving position, a powerful engine and perhaps a body design

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Before Every Car Got a Third Brake Light, 343 San Francisco Taxis Had to Prove It Worked

A third brake light is remarkably easy to ignore. It sits in the rear window or above the tailgate, performs one job and receives considerably less attention than the lamps surrounding it. That ano

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Those Colored Dots on New Tires Reveal the Imperfections Engineers Already Measured

New tires arrive covered in information. Numbers identify their size, load capacity, speed rating and date of manufacture. Then, among all that serious molded lettering, someone appears to have atta

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Those Black Dots Around Your Windshield Have Been Hiding Several Important Jobs

They run around the edge of almost every modern windshield: a solid black border that gradually breaks into smaller and smaller dots before disappearing into clear glass. Most drivers have stared t

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Low Brake Fluid? Put the Bottle Down Until You Know Where It Went

The reservoir under the hood is sitting close to the minimum line. There is a bottle of brake fluid on the shelf. The obvious response seems to be pouring in enough fluid to bring the level back to &l

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Those Nearly New Tires May Be Much Older Than They Look

A tire can look almost offensively healthy for its age. The tread grooves are deep. There are no nails in sight. The sidewalls still turn glossy after a wash, and the car has covered so few miles th

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America Chose the Right Side of the Road Before Cars Even Existed

The United States was already keeping right long before anyone had an engine, a steering wheel, or an argument about who had the right of way at a four-way stop. The habit began with horses

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