Trivia

Hard

Who Was The Only U.S. President To Hold A Patent?

Truman
Kennedy
Washington
Lincoln

Answer: Lincoln

In addition to his skill as a statesman and leader, Abraham Lincoln was a talented mariner and a life-long tinkerer. It was a merging of these last two that led Lincoln to work quietly in his spare time on a device intended to assist boats on the Mississippi River free themselves from shoals.

The device relied on buoyant chambers attached to sturdy timbers being forced down into the water in order to raise the mass of the boat up above the shoal–think of the mechanism like a pontoon boat that could lift itself upon its pontoons to clear obstacles in the water.

Although Lincoln applied for and received a patent for his design, the device was never manufactured or brought to market.

Trivia

Very Hard

The Longest Continuous Wall Ever Built Was Not Located In China But?

Trivia

Hard

Every Country’s Postage Bears The Name Of That Country Except For?

Trivia

Hard

Modern Domestic Apples Originated In Which Country?

Trivia

Hard

Prior To The Launch Of Google’s Email Service, Who Did Gmail.com Service?

Trivia

Hard

Who Coined The Term Meme?

Trivia

Hard

The Largest National Park In The World Is Located In Which Country?

Trivia

Easy

After Exposure To Factory Waste, French Bees Were Found Producing What?

Trivia

Easy

Which Of These Creatures Produces Light At Nearly 100% Efficiency?

Trivia

Easy

The Great Lakes Were Formed By?

Trivia

Hard

Hidden Within The Brooklyn Bridge Are Vaults Originally Used To Store?