Mental Floss

DESIGN

A new book collects the incredible visualizations he created for the 1900 Exposition Universelle in Paris.

Wikimedia Commons

Not everyone sees the same thing at first glance.

iStock/RossHelen

They hate those pop-up tutorials in apps, too.

iStock/atese

Horse-powered cars, bombs with cat flaps, self-steering golf balls: Arthur Paul Pedrick may not have been the world's most successful inventor, but he was undoubtedly one of the most creative.

Kevin Moloney/Getty Images

Trapped guests have had to call for pizza.

IRL Glasses, Kickstarter

They're inspired by John Carpenter's 'They Live.'

Chaloner Woods/Getty Images

Perplexing jackets for 'The Great Gatsby', 'Our Mutual Friend,' and more.

iStock

It lists the animals, plants, and minerals each color appears in.

iStock

Even seasoned professors may have trouble spotting this trick.

Outinaz, Wikimedia Commons // CC BY-SA 4.0

The unique design was an early prototype of New York City's Guggenheim Museum.

Senior drivers have special needs with cars—and these designers are trying to help.

The Third Age Simulation Suit allows young car designers to step inside the skin of an older driver.

Hello Velocity

If the letters look familiar, it’s because you see them every day on signs, advertisements, and beyond.

Museum in a Box, Vimeo

The initiative turns digitized museum collections into classroom exhibits.

Matthew Somerville

Birmingham programmer Matthew Somerville just blessed Londoners with an amazingly helpful tool.

iStock

Tell your old backpack to take a hike.

iStock

And firefighters can still use them.