Video: We've all made a tiny ping-pong ball float on a hair dryer, but what YouTube's Veritasium is demonstrating here — a giant Styrofoam ball floating on the side of a thin stream of water — seems to contradict every scientific law governing our universe. But there is an explanation as to what's happening.
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Like lawn darts, nano-magnets and slap bracelets, fidget spinners are only one stupid stunt away from becoming yet another forgotten fad. And as usual, instead of enjoying them responsibly, the internet is hard at work trying to find ways to make spinners as dangerous as playing with firecrackers. This is why we can't have fun things.
Video: The next time you accidentally spill soft drink, or water, plus a little bicarbonate of soda on one of your cutting boards, don't complain about having to clean it up. Instead, tear the safety cover off your microwave and use it as a high-voltage power source to etch a cool lightning pattern into the mess. (Don't actually do this.)
If half your work day is spent thinking up ways to troll and annoy your co-workers, today's going to be an easy one. Neil Thapen's Pink Trombone is a browser-based speech synthesiser that lets you manipulate a simulated mouth, throat, tongue, and nasal cavity to create a remarkably realistic — and equally annoying — human voice.
Video: What's 15 minutes of fame worth to you? Are you willing to spend the rest of your life feeling like you just rode the Tilt-A-Whirl at an amusement park for three weeks? Because strapping yourself into a spinning office chair powered by a pair of spraying nitrous tanks is likely going to scramble your brain, among other body parts.
A few weeks ago, the internet was wowed by a video of a whiteboard marker stick figure doodle that appeared to magically come to life with a little water. Many assumed there were some unseen shenanigans that made the stick figure leap off the table, but as Steve Mould explains, it's all due to the simple science of erasable markers.
Video: If you ever wanted to be a wizard, or just to try your hand at some magic tricks, you should learn the dark art of... static electricity. Yep, with a bit of strategic contact with certain objects, you can easily fool kids and probably even trick your drunk friend into thinking you can control objects through invisible forces.
Video: We're going to assume that Dan Clinch is a teacher who's either found a great way to get his students excited about chemistry, or is just looking to get fired with a comfortable severance package. Because having them pass around what appears to be an invisible flaming bubble of propane looks both amazing and dangerous at the same time.
Video: Gallium is one of those rare metals that turns to a liquid somewhere above room temperature, allowing you to do fun experiments — like pouring it onto a vibrating speaker while playing music — without risking severe burns. Point a camera at the results and that fun science experiment suddenly feels like you've discovered a distant alien world bubbling to life out of the fabric of the cosmos.
Video: After demonstrating the miraculous protective capabilities of Line-X spray on a watermelon, YouTube's How Ridiculous wondered what else the wonder material could protect from a 45m drop. Surprisingly, eggs, one of Mother Nature's most fragile creations, simply bounced off the pavement after the plunge.
Video: It's called the Schlieren effect and it means that you can see things that are invisible to the human eye, like changes in air density. So when you turn on a hair dryer, you can see the blast of air it shoots out. When you open a can of Coke, you can see what's escaping into the air. When you rub your hands, you can see the heat surrounding them.
Video: Throw dry ice in everything just to see what happens, if you ask me. Crazy Russian Hacker put dry ice in some green slime and a bunch of bubbles started forming out of nowhere. The bubbles eventually pop in a small explosion of smoke but when they first appear underneath that muck of green goo, it's like seeing eggs spawn or something.
Video: Because riding a 360-degree swing as tall as your house isn't daring enough, amateur mad scientist Colin Furze has upgraded his latest creation with a petrol-powered parasailing motor, giving it more power, more speed and a guaranteed way to make riders want to puke their brains out after a ride.
Video: Would you sink or float if you were tossed into a gigantic vat of squishy gelatinous spheres? 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.
Video: Liquid nitrogen is an endless source of fun. You can freeze things and smash things into pieces. Or you could pour it onto things and then watch the smoke monster move around and then smash things into pieces. Or you could dunk things in it and then watch the smoke disappear and then smash things into pieces. You get the point.
Ah, in a tale as old as ice and fire, here's a liquid nitrogen 'squirt gun' versus a flamethrower. The Backyard Scientist outfitted a liquid nitrogen canister with a release valve that basically turns liquid nitrogen into a freeze ray death weapon of sorts (as in, the pressure makes the liquid nitrogen shoot out pretty strong). He pitted it up against a flame thrower to see how long it would take the liquid nitrogen shooter to win and it's quite the battle.