Awesome Dangerous

There are lots of ways to learn to play the piano. Joel Creates and his friend Eric came up with the cruelest method. Their electric piano keyboard uses negative reinforcement, zapping students with high-voltage electricity if they mess up. It has electrodes on every key, so it shocks the same finger that played the wrong note.

Mortal Kombat’s Kung Lau wears one of the deadliest articles of clothing ever. Not only is his hat made out of metal, but it also has a razor-sharp brim that can slice his opponents into pieces. Koss shows us how he made a real-world replica of the killer hat using a jumbo circular saw blade as a starting point.

Freestyle mountain bike rider Sam Pilgrim got his hands on an old-timey penny-farthing bike with a huge 32″ front wheel. But instead of riding it over to the neighborhood thrift store, he hit a sketchy downhill trail and a BMX track on the two-wheeler. That fixed hub for pedaling looks like quite the workout.

Do you have trouble waking up? Mehdi from ElectroBOOM has the solution. He built an alarm clock designed to startle you from your sleep by blowing up capacitors. The trick is an alarm clock that triggers a rotating magazine that holds ten capacitors and applies a high-voltage power source.

Angle grinders can be quite dangerous if not used properly – and in the hands of the Beyond the Press channel, they’re far more likely to cause harm. For their series Grinder Discs That Shouldn’t Exist , they wanted to see what would happen if they attached a circular saw blade to an angle grinder. Then they leveled things up 4x.

Hydraulic Press Channel has smashed many items until they exploded . Fortunately, the humans conducting these experiments have stood behind a blast shield for protection. But what if you stood right next to the press without any safety gear? We now know the painful answer with the help of a ballistic gel head.

Skiing can be incredibly fun – but it can also be quite dangerous. Big mountain skier Owen Leeper shows how scary things can get with this first-person footage of an avalanche that started beneath his skis as he headed down a rocky chute. Fortunately, he survived with only minor injuries. Here it is from another angle.

The zombie-slaying game Dying Light 2 Stay Human encourages players to improvise weapons to take down the undead. Thanks to Integza, we have a real-world, 2-for-1 weapon that combines the reach of a sword with the power of a chainsaw. The finished chainsword is driven by an 8 horsepower brushless DC motor.

The Backyard Scientist continues his trend of playing with stupidly dangerous things. After getting his hands on a 2000-watt industrial laser, he put it through its paces to set things on fire, weld metal, clean rusty surfaces, and cut down a tree like a laser chainsaw. At least he had the good sense to wear eye protection.

Joel Creates was sick of waiting for his hands to dry in public restrooms, so he and his brother built one that works much faster. The jet-powered dryer evaporates water in a split-second and will also melt the flesh from your bones. He also made the world’s most powerful hair dryer. Yep. Don’t try any part of this at home.

After melting all of the strings on his piano with high-voltage sparks, Mattias Krantz wanted to see if he could still make music with the thing. So he got to work building a series of circuits that fire plasma arcs onto the piano’s metal backboard to make sounds when he presses the piano’s keys. But it wasn’t easy getting it to work.

Mehdi from ElectroBOOM demonstrates the relationship between voltage and amperage by reducing the output voltage of a microwave transformer to the point that it produces massive amounts of current. Expect lots of buzzing noises, noxious smoke, math equations, and melted objects along the way.

The idea of a machine optimized for throwing blades as quickly and accurately as possible seems like a terrible idea. But this is the internet, so someone had to go and make one. Quint BUILDs shows off his dangerous invention, which can launch and fire up to 10 knives with precision and from different distances.

Most of us celebrated Christmas with a real tree or a store-bought fake one. Sean Hodgins made his tree out of light. He created the electronic tree using a triangular bar rigged with LEDs that spins at high speed to create the illusion. It looks amazing, but it’s dangerous enough that he stands behind a blast shield to use it.

Like last year, maker Xyla Foxlin and Joe from BPS.Space wanted to celebrate the holidays with a rocket-powered Christmas tree. But this year’s launch didn’t quite go according to plan, and the flaming yule tree literally went sideways and turned into a missile that could have easily taken out Santa and his sleigh of reindeer.

Attaching three sets of hedge trimmers to the motor from an angle grinder seems like a recipe for disaster. But that didn’t stop YouTuber Turnah81 from trying the idea. Frustrated by the inability of electric hedge trimmers to cut through larger leaves, he built this nightmarish power tool that makes the most terrifying sound.

Toilets are designed to take some pretty explosive payloads. But we can say with certainty that they weren’t thinking about what YouTuber HaerteTest came up with. He filled the porcelain bowl with thousands of individual sparklers, then set it ablaze. This is even worse than the last time we ate Taco Bell.

Freestyle mountain bike rider Sam Pilgrim got his hands on a beat-up side-by-side tandem bicycle and thought it could use an upgrade. So he and his pal Louie outfitted it with a powerful 80cc paramotor fan. The resulting vehicle is insanely loud and squirrely as hell. We’re impressed they didn’t roll it.

The Backyard Scientist should change his name to “The Dangerous Scientist.” This time, he made his own rockets, then devised a way to attach kitchen knives to them and launched them into various objects. Before you say anything about the wonky aerodynamics, the rockets had to be attached to a steel guide cable.

After hearing about a now-defunct competition where players modded power tools into race vehicles, William Osman gathered up some of YouTube’s most popular makers and content creators to put on their own version of the dangerous drag races. Needless to say, don’t attempt to replicate any of this at home.

You can run down to the Home Depot and pick up a tool that uses gunpowder or compressed air to drive nails. I Did a Thing tried his hand at building his own explosive-powered nail gun, but his looks like a hammer, plus, it’s much more dangerous than off-the shelf tools. Kids, don’t dance barefoot on your lathe.

Bob “Rocketman” Maddox is obsessed with building dangerous jet-powered karts and racing them across the desert. To get into the holiday spirit, he built a coffin-shaped pulsejet car he dubbed the Halloween Machine. It doesn’t look quite as slick as The Munsters’ coffin car, Dragula, but Bob’s is much, much faster.

Musician and maker Mattias Krantz has done some pretty crazy things to pianos. This time, he teamed up with Mehdi Sadaghdar of Electroboom to create the most dangerous piano ever. Using a bunch of cheap camera capacitors, he modified his hammer-head piano to create high-voltage sparks when played.