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

100 Interesting Facts We Learned in 2020

They definitely learned something new in 2020.

100 Interesting Facts We Learned in 2020

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

iStock/borchee

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

Why Only One Side of Tinfoil Is Shiny

The shiny side is on top here, but that doesn't necessarily make it better.

Why Only One Side of Tinfoil Is Shiny

The Evolution of the Presidential State Car

FDR's Lincoln K Sunshine Special at the now-closed Walter P. Chrysler Museum in Michigan.

The Evolution of the Presidential State Car

Engineering Student Builds Giant Slip 'N Side in an Effort to Break a World Record

Ashish, Pexels

14 Powerful Facts About the Hoover Dam

Ryan Thorpe, Unsplash // Public Domain

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

Mary W. Jackson at NASA in 1980.

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.

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.

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.

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