Trivia

Hard

Which Of These Specialty Windshield Features Was Developed For Cars, But Is Now Used On Ships?

Pressure Washers
Rotating Glass Disk
Fog Proof Glass
Flame Wipers
A British test driver demonstrating the rotating glass disk design on the vehicle he is driving.
Popular Mechanics/Google Books

Answer: Rotating Glass Disk

If you’ve never heard of this innovation, then prepare to have your mind blown by the sheer novelty of it. Back in the mid 1930s, automotive designers came up with a clever windshield design: a glass disk mounted in the main windshield, like a port hole, that (driven by an electric motor) rotated rapidly to fling rain, sleet, and snow right off. The example shown here is from the December 1934 issue of Popular Mechanics and features a British test driver demonstrating the design in action.

As clever as the design was, it proved to be impractical for use in mass-produced automobiles. Today, the design, commonly called a clear view screen, isn’t used on any cars, but is commonly found on the windshields of large ships, locomotives, and some public transport vehicles like streetcars and trams. In those applications, especially in keeping the glass clear on a ship in inclement weather, it’s an invaluable and cleverly designed tool.

Trivia

Hard

Actor James Doohan Was Awarded An Honorary Degree In?

Trivia

Hard

Modern Cattle Are Descended From Which Of These Extinct Creatures?

Trivia

Hard

Which Actor Portrayed A Comic Hero That Was Modeled Directly After Himself?

Trivia

Hard

Prior to 1976, London Cab Drivers Could Be Fined For Not Keeping What In Their Cab?

Trivia

Hard

In 1960s America, Players In Which Sport Were Radically Better Paid Than Football And Baseball Players?

Trivia

Easy

Which Of These Foodstuffs Was Originally Dyed Before Sale?

Trivia

Hard

In The Original Bram Stoker’s Tale, Dracula Isn’t Harmed By?

Trivia

Very Hard

What Popular 1980s Computer Game Blatantly Ripped Off Super Mario Bros?

Trivia

Hard

Floating Timelines Are A Critical Element Of?

Trivia

Hard

The Venus Fly Trap Is Found Natively Only In Which Region Of The World?