Trivia

Hard

A Pen Invented By Thomas Edison Is Still In Use Today For What Purpose?

Drafting
Self-Destructing Letters
Signing Congressional Bills
Tattooing

Answer: Tattooing

In 1876 Thomas Edison filed a patent for the “Stencil-Pen”. This rotary-engine driven pen was intended to semi-automate the process of duplicating print and artwork by using stencils combined with the ink-loaded reciprocating needle that served as the pen tip. The needle punctured the paper 50 times a second and impregnated the paper with micro-drops of ink.

While the Stencil-Pen was ultimately a commercial failure in the arena of print duplication, it became a commercial success in the arena of body modification. In 1891, Samuel O’Reilly expanded on Edison’s design to serve as a tattoo artist’s tool–injecting micro-droplets of ink under skin instead of into paper. Although tattoo machines have undergone many changes since then (such as replacing the rotary mechanism with an electromagnetic coil) they can all trace their ancestry back to Edison’s Stencil-Pen.

Bonus Trivia: The Stencil-Pen was the first electric-motor driven appliance sold in the United States.

Trivia

Easy

What Was the First Commercial Product to Use a Barcode?

Trivia

Hard

The Only M*A*S*H Cast Member To Appear In Every Single Episode Was?

Trivia

Hard

Long Before Virtual Game Achievements Were A Thing, Activision Would Mail Gamers?

Trivia

Hard

Modern Cattle Are Descended From Which Of These Extinct Creatures?

Trivia

Hard

Video Games Frequently Use Which Of These Techniques To Create The Illusion Of 3D Space?

Trivia

Hard

In 1992 U.S. Navy Researchers Identified The World’s Loneliest?

Trivia

Easy

The Largest Artery In The Human Body Is The?

Trivia

Very Hard

Stars That Cannibalize Other Stars Are Known As?

Trivia

Hard

Which Of These Early Video Games Had A Cast Of Forty Actors?

Trivia

Hard

The Only Film Where Mickey Mouse and Bugs Bunny Appear Onscreen Together Is?