What Kind of Sorcery Lets People Swim In This Sand-Filled Hot Tub?
You can try as hard as you want, but you’ll never be as cool an uncle as ex-NASA JPL engineer Mark Rober. Using…
Science Helps Reveal Which Carnival Games Are a Scam, and Which Ones You Can Actually Win
The prizes, the lights, the sounds, and a quick-talking barker make it hard to resist playing carnival games, but is…
The World's Biggest Super Soaker Is Powerful Enough to Shatter Windows
Last summer, Mark Rober built the world’s largest Nerf dart gun, capable of blasting foam at 40 mph. Sure, that made…
The Greatest Hot Wheels Track Ever Built Ends With an Explosive Finale
Mark Rober, who we last saw engineering a dart board that guaranteed a bullseye with every throw, has just built what…
Brilliant Motion-Tracking Dart Board Guarantees a Bullseye With Every Throw
A night at a local pub isn’t complete without a few rounds of darts, but as your blood-alcohol level rises, your…
Shooting Crazy Super Soakers Filled With Paint Is a Lot of Silly Fun
If you crossed a Super Soaker with a paintball gun, you’d get this wild creation from our friend Mark Rober: a crazy…
Why Glass Bottles Shatter at the Bottom When You Smack the Top with Your Bare Hands
There’s nothing quite like using the scientific method to figure out what’s happening in a silly party trick that we’ve…
What Happens When You Dive Into a Pool Filled With 25 Million Squishy Waterballs?
Would you sink or float if you were tossed into a gigantic vat of squishy gelatinous spheres, more popularly known as…
The World's Biggest Nerf Gun Can Shoot Darts at 40 MPH
Every child and every adult who wants to be a child again loves a good Nerf gun. They’re fun to shoot, whether you’re…
Bouncing On a Trampoline With Water Balloons Is the Best Way to Feel Like a Kid Again
Here’s how you spend a good summer day: find a giant trampoline, fill up 1,500 water balloons, and then bounce around…
Are Grenades Deadlier on Land or Under Water?
YouTube scientist Mark Rober and molten metal obsessive BackyardScientist teamed up to answer a simple question: is a…
This Easy to Understand Scale Model of Our Solar System Shows How Far Planet Nine Is
Using a football field, a drone, some peas, a few pepper flakes, grapes, and some people playing soccer, Mark Rober…
Here's the Fastest Way to Defrost Your Car Windshield According to Science
It’s winter. If you drive a car that’s parked outside, you know what that means. It’s frigid as hell inside your car…
How to Win Your Physics Class Egg Drop Competition
The problem is simple enough. You’ve got a raw egg, and it’s going to be dropped from a high place. You have to build a…
Ingenious Infrared Microwave Shows Your Food Change Color As It Heats Up
After watching this video I feel like the best microwave I've ever used sucked very badly. What you see here is a…
The Ugliest Christmas Sweaters Use a Little Pixel Magic
Last year, our pal (and former NASA JPL engineer) Mark Rober whipped up the first digital ugly Christmas sweater.…
Smartphones Turn These Masks Into Incredible Animated Halloween Costumes
Proving that sometimes all it takes is a popular YouTube video to kickstart a successful business, Mark Rober, the guy…
A Simple Trick to Protect Your PIN From Thieves With Thermal Cameras
Thermal cameras were once expensive and bulky hunks of equipment that very few people could get their hands on. No…
The Easy Way to Know the Height of the Cliff You're Jumping Off
So you fancy yourself a pretty good cliff-jumper. You always personally inspect your landing spot for hazards and the…
The Science Behind Making the Fastest Possible Pinewood Derby Car
You wouldn't think that a four-wheeled car would go faster if one of its wheels didn't touch the ground. Or if its…