Topic

transport

7 articles matching this topic.

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A red octagonal stop sign against a clear sky

Everyday Life

Why Are Stop Signs Red?

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Yellow taxi cabs on a busy New York City street

Everyday Life

Why Are Taxis Often Yellow?

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Close-up of embossed letters on a metal licence plate

Everyday Life

Why Do License Plates Have Raised Letters?

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Close-up of steel train wheels on steel rails

Engineering

Why Do Trains Use Metal Wheels?

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Interior view of a city bus with large windows

Everyday Life

Why Do Buses Have Large Windows?

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A pedestrian pressing a crossing button at a busy intersection

Everyday Life

Why Do Pedestrian Buttons Feel Useless?

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Different types of speed bumps on a residential road

Everyday Life

Why Are Speed Bumps Shaped Differently?

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