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16 Innovative Origins of Holiday Traditions
Did you know that artificial snow dates back to 1950?
VIDEO
See How to Grow Snowflakes Inside a Soda Bottle
It's never too warm to see snow on Christmas.
Watch a Former NASA Engineer Turn Sand Into Liquid—Then Take a Dip
YouTube host Mark Rober's latest stunt involves a bubbling hot tub that's in no way actually wet.
How Hand Sanitizer Works (And Why It Isn't a Substitute for Soap)
Hand sanitizer doesn't look, smell, or feel like the stuff doctors use to clean their tools? (Or the kind we drink, for that matter.) It also doesn't physically wash dirt from your hands.
Watch Boris Karloff's 1966 Coffee Commercial
The horror icon, who was born 130 years ago today, definitely had a sense of humor.
Watch a Chain of Dominos Climb a Flight of Stairs
Dominos can do a lot in the hands of this YouTube star.
The Secret Procedure for Queen Elizabeth II's Death
It's codenamed "London Bridge Is Down"
See How Careful Restoration Can Illuminate a 17th-Century Painting
Removing the decayed top layer reveals practically a whole new painting underneath.
Why 'Good Luck Charms' Seem to Work, According to Science
A case for digging out your lucky childhood action figure.
7 of the World's Most Terrifying Ladders
Watch your step.
Don't Try to Swim in Peru's Legendary Boiling River
Chances are that you'll come out with third-degree burns.
Why Not Brushing Your Teeth Is So Bad For Your Health
Good oral hygiene affects your whole body.
How a Makeshift Bicycle Saved Curious George From the Nazis
The real-life tale of how the beloved children's book character came to be rivals any movie.
Watch a School of Humpback Whales 'Fish' Using Nets Made of Bubbles
The ritual is more complex than meets the eye.
Experts Still Don't Understand Stockholm Syndrome
Researchers aren't even sure whether it should be considered a disorder.
Watch Craftsmen Shape Gobs of Molten Glass into Colorful Marbles
Learn how the tiny trinkets get their colorful centers and perfectly round shapes.
The Sweet Surprise Reunion Mr. Rogers Never Saw Coming
You're gonna cry. Just a heads up.
Why a Howling Wind Sounds So Spooky, According to Science
Creepy dead trees actually play a part in the phenomenon.
SpaceX's Landing Blooper Reel Shows That Even Rocket Scientists Make Mistakes
They're not explosions, they're "rapid unscheduled disassemblies."