Mark Rober, who we last saw engineering a dart board that guaranteed a bullseye with every throw, has just built what every car-loving kid always dreamed of: an epic Hot Wheels track that has tiny vehicles racing between floors, through swimming pools, and jumping over giant explosions.
A night at a local pub isn’t complete without a few rounds of darts, but as your blood-alcohol level rises, your ability to hit the bullseye greatly diminishes. Unless you’re playing with Mark Rober’s motion-tracking dart board that automatically repositions itself so you’re guaranteed to hit the bullseye every time.
There’s nothing quite like using the scientific method to figure out what’s happening in a silly party trick that we’ve seen way too many times (if you’ve been to bad parties, at least): the ol’ smack the top of a glass bottle and watch the bottom burst out in shards gag.
Would you sink or float if you were tossed into a gigantic vat of squishy gelatinous spheres, more popularly known as Orbeez? Mark Rober, one of the Backyard Scientists, decided the only way to definitively answer the question that few have ever asked was to fill an entire pool with 25 million of the tiny spheres, and dive in.
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 and the windshield is totally opaque from all the foggy ass frost. Not cool. How do you get rid of it? Hit the defrost button right? That’s not all. The always inquisitive Mark Rober tested out every…