engineering - Trivia, Quizzes, and Brain Teasers | Mental Floss

14 Powerful Facts About the Hoover Dam

Ryan Thorpe, Unsplash // Public Domain

14 Powerful Facts About the Hoover Dam

NASA Names Washington, D.C., Headquarters After ‘Hidden Figure’ Mary Jackson

Mary W. Jackson at NASA in 1980.

NASA Names Washington, D.C., Headquarters After ‘Hidden Figure’ Mary Jackson

Thomas Edison’s First Patented Invention—a Voting Machine for Congress—Was a Total Flop

Sadly, Congress voted 'No' on using Thomas Edison's voting machine.

Thomas Edison’s First Patented Invention—a Voting Machine for Congress—Was a Total Flop

Pennsylvania Heroes Head Home After a 28-Day Shift Making Medical Protective Gear

The workers produce polypropylene, a raw material used to manufacture masks, gowns, and other personal protective equipment.

Pennsylvania Heroes Head Home After a 28-Day Shift Making Medical Protective Gear

7 Animal Crossings Around the World

smontgom65/iStock via Getty Images

The Reason Escalator Stairs Are Grooved

Thanks to the escalator stairs' grooves, these feet are not in danger.

Why You Shouldn’t 'Heat Up' Your Car's Engine In Cold Weather

iStock/borchee

This Is the Best Place to Sit in a Movie Theater

iStock.com/gerenme

Bioengineering Student Is Building Custom Prosthetic Arms From LEGO Bricks

iStock.com/serts

The Line for the Women's Bathroom Is Always Notoriously Long. It Doesn't Have to Be That Way

iStock.com/justhavealook

Former NASA Engineer Builds Farting Glitter Bomb to Teach Porch Pirates a Lesson

Mark Rober, YouTube

The Scottish Islands Where Electricity Is Being Made From the Ocean’s Tides

Courtesy Orbital Marine Power

What’s the Difference Between All-Wheel Drive and Four-Wheel Drive?

iStock/PeopleImages

A Team of Young Women Wants to Send Kyrgyzstan's First Satellite to Space

José Furtado y Antel, Wikimedia Commons // CC0 1.0

Behold! The World’s Largest Beaver Dam

Photo Courtesy of Parks Canada

One Engineer's Crazy Plan to Drain the Mediterranean

Ittiz at en.wikipedia, via Wikimedia Commons // CC BY 3.0