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Mental Floss

TRANSPORTATION

What Are Those Plastic Strips Hanging Off Truck Wheels?

The curious truck accessory may have caught your eye on the road. Here's how a tiny plastic strip keeps drivers safe.

Jake Rossen

Why Do Trucks Warn That They Make Wide Right Turns, But Not Wide Left Turns?

Truck signage highlights the dangers of right turns over left turns for a good reason.

Michele Debczak

This could be you ... but only if you work for UPS.

UPS Won’t Let Their Delivery Vehicles Be Resold—Here’s Why

You can’t take your UPS driver Halloween costume to the next level by cruising around in an actual UPS truck.

Ellen Gutoskey



They aren't just decorative.

What Are Those Plastic Arrows You Sometimes See on the Wheels of Trucks and Buses?

The plastic arrows on the wheels of trucks and buses serve an important purpose.

Michele Debczak


The Reason You Sometimes See Chunks of Trees on Power Lines

Unlike the brightly colored balls on power lines, those random "tree chunks" don't serve a practical purpose.

Michele Debczak


The Reason UPS Drivers Always Leave Their Doors Open

UPS trucks do have passenger doors, but you almost never see them closed—for a good reason.

Michele Debczak


The escalator in St. Petersburg's Admiralteyskaya Metro Station.

The 10 Longest Escalators in the World

You think Washington, D.C.’s metro escalators are long? Wait ’til you hear about St. Petersburg’s.

Ellen Gutoskey
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