Mental Floss

BIG QUESTIONS



Demonstration of a waterbed, 1971.

Waterbeds were once a coveted "fluid fixture" of bedrooms—until, suddenly, they weren't. So who or what led to their demise?

Jeff Wells




Ireland: Come for the Guinness, stay for the lack of snakes.

Legend tells of St. Patrick using the power of his faith to drive all of Ireland’s snakes into the sea. It’s an impressive image, but there’s no way it could have happened.

Kate Horowitz


Red tide in Victoria, British Columbia.

The phenomenon might look like a biblical plague, but the source is far more mundane.

Alvin Ward




'Ha, ha, ha, ha, ha-HURK'

In 1975, a woman found her husband dead in a chair after watching a BBC sitcom. He had been laughing for almost a half-hour. Was it merriment that killed him?

Jake Rossen












When you're shopping at a flea market, have you ever stopped to wonder how it came by that name?

It’s another in a long line of etymologies that doesn’t have one clear-cut answer, but a few plausible (and interesting) possible explanations.

Matt Soniak
If this is what your eyeballs feel like after trying (and failing) to see Magic Eye pictures, you're not alone.

Magic Eye pictures have been called “the world’s most famous—and infamously frustrating—optical illusion.” Here’s what might be going on if you can’t see them.

Matt Soniak