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.
Tagged With experiments
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.
This doesn't mean you should stop being helpful or charitable to homeless people you encounter on the street — but if you see this guy, there's something about him you should know. At a recent Maker Faire in Nantes, France, a man wearing worn clothing and pushing a shopping cart actually turned out to be a lifelike robotic hobo, or robo, as they prefer to be called.
Video: Growing up on Earth you learn from a very young age that liquids will remain in a cup as long as it stays upright. But Steve Mould demonstrates a liquid that laughs at gravity and other forces that govern our universe: Polyethylene oxide. It's a polymer made from long chains of molecules that allow it to pour itself out of a container — even if it's not tipped over.
If you're working on a rocket destined for Mars, Google's new Science Journal app might be a bit limited. But if you're an aspiring scientist, the free app will turn an Android smartphone or tablet into laboratory full of experiments by grabbing data from the device's various sound, light and motion sensors.
As far as building materials go, they don't come much cheaper than dirt, which is literally everywhere and mostly free. But, as anyone who has ever made a sand castle knows, soil isn't terribly strong and has a habit of forming a shallow pile rather than more structurally-beneficial shapes. We're going to let you in on a little secret — making dirt super strong is incredibly easy.
Video: Other than youth, recess, holidays, nap time, lollies, junk food, energy, a fast metabolism, hope, excitement, bubbles, being with your friends every single day, first memories, playgrounds, no worries and probably a million other things, one of the things that you miss about being a kid when you're an adult is the lack of silly science experiments. Sometimes you just want to put some food colouring on a plate and make it blow away with some dish soap. You don't want to know the science behind it, you just want to see a volcano explode.