Trivia
HardWho Was The Only U.S. President To Hold A Patent?
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 HardThe Longest Continuous Wall Ever Built Was Not Located In China But?
Trivia
HardEvery Country’s Postage Bears The Name Of That Country Except For?
Trivia
HardModern Domestic Apples Originated In Which Country?
Trivia
HardPrior To The Launch Of Google’s Email Service, Who Did Gmail.com Service?
Trivia
HardWho Coined The Term Meme?
Trivia
HardThe Largest National Park In The World Is Located In Which Country?
Trivia
EasyAfter Exposure To Factory Waste, French Bees Were Found Producing What?
Trivia
EasyWhich Of These Creatures Produces Light At Nearly 100% Efficiency?
Trivia
EasyThe Great Lakes Were Formed By?
Trivia
HardHidden Within The Brooklyn Bridge Are Vaults Originally Used To Store?