The process of sandwiching oil and ferrofluid between sheets of glass is messy to say the least, but the result is amazing – the ability actually view the radiating fields created by magnets placed on the surface of the glass. Magnetic Games shows us how its done.
For Inventables’ fidget spinner challenge, Giaco Whatever decided to see if he could make one that could float in mid air. After a bunch of experimentation, he was able to get it to work by placing it between two opposing magnetic fields, and spinning it for stabilization.
Beyond its liquid properties, the other cool thing about mercury is that it’s magnetic. Roobert33 shows how electromagnets can be used to change the direction that mercury flows in. It would be cool to build an Escher-style fountain that flows uphill with this method.
Grant “The King of Random” Thompson previously tested the myth that mixing propane and Coca-Cola would turn it into a pressure-packed rocket, and failed. He tried it again with butane, and the highly-flammable stuff works brilliantly. Definitely don’t try this one at home.
That acid green stuff in your car’s radiator not only helps keep your engine cool, it keeps it from freezing. Grant Thompson wanted to know if it’s possible to freeze the stuff with liquid nitrogen. The slow-mo of the nitrogen hitting the table is literally super cool.
The Slow-Mo Guys ignore all the warning labels on a bunch of small lithium batteries, exposing them to fire, and turning them into tiny rocket ships and bombs in front of their Phantom high-speed camera. We can only imagine how nasty large batteries would be if they blew up.
We’ve seen the fire tornado trick before, but if you know Colin Furze, you know he’s always got to go to 11. Now, the British madman has gone and built himself a 20-foot-tall spinning fire rig that’s every bit as terrifying as an actual tornado. Oh, and it shoots fireworks.
The Science Channel’s series Street Science presents a neat experiment, mixing bulk quantities of the nasty goo inside of glowsticks to produce a variety of vibrant colors. The result is a new abstract painting medium. Needless to say, don’t play with these chemicals at home.
We’ve seen the strange properties of these hardened glass drops before. Now see how one handles the deadly hydraulic press. It’s so strong that it damages the press tools before violently exploding. Hopefully these guys can buy a better high-speed camera soon.
The Backyard Scientist adds a propane torch to his sweet rocket sled knife so he can heat the knife’s blade to over 1000ºF before launching it towards its inanimate victims at the end of the track. It didn’t stay glowing hot, but slow-mo rocket sled destruction is still fun to watch.
The power-mad minds at PhotonicInduction decided to see what would happen if they attached a length of steel chain to some high-current transformers. At first, all they were able to muster was a few sparks, but with a higher output power source, it glowed bright orange.
A cool science demonstration which shows how the electrons swirling around the outside of a Tesla coil can turn it into an impromptu motor – in this case, causing a wire balanced on top of it to spin and shoot sparks as it goes. Originally seen in a video from ElectroBOOM.
Physics Girl and Arc Attack might sound like a superhero and her evil archnemesis, but they’re just everyday geeks who love science. Here, they show us how to rip an aluminum soda can to shreds using a powerful electromagnet, along with a couple of other fun experiments.