Video: Now this is some fun times. The Backyard Scientist strapped a kitchen knife to some homemade sugar rockets, put it on a track sprayed with graphite lubricant so it could cut things while zooming down at 240km/h, and then put various sliceable items on the other end to reach their imminent doom (for our infinite viewing pleasure).
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There are so many reasons to try this at home tonight: you get to see the metal blade burn that glorious fiery orange red, you get to hear inanimate objects make weird whining sounds as they get sliced open, you get to imagine what spontaneous self-combustion would be like, and in some cases you might even spot what looks like souls escaping from a bar of soap (that's probably my favourite thing that gets cut).
Video: I'm a total sucker for watching old tools get turned into badarse blades, because seeing random objects get weaponised is such silly dangerous fun. That used to be a thing that tightened bolts! Now it's a knife that will slice your eyes out. Plus, it looks cool as hell. This time, Miller Knives took a monkey wrench and forged it into a swashbuckling knife by the tried and true method of heating it up, bludgeoning it to hell and sharpening it into a deadly curved knife. The wrench's jaws act as the handle.
Video: I know that it's pretty darn obvious that if you sharpen a knife over and over again, you'll eventually get a razor sharp edge to slice things with. But that doesn't make it any less fun to transform a $1 knife bought from a dollar store into a beast of a blade that destroys everything as if it were descended from the Damascus, Ulfberht and Valyrian steel gods.
Video: There's nothing odd about this. There's nothing surprising about it either. If you watch a very hot knife cut through a piece of styrofoam, it's going to be exactly as satisfying as you'd think it'd be.. The styrofoam shrivels up after each cut and turns into this goo that looks more like a marshmallow than anything else.
The phrase "jack of all trades but master of none" might be best suited to describing multi-tools. They're useful in a pinch, when no other tools are available, but the tools are far from ideal. But that's something Gerber wants to change with its new Center-Drive featuring implements that have been specifically redesigned for usability.
Video: You can basically transform anything made out of metal into a working knife — if you blast it with enough heat, pound it enough times with a hammer and then sharpen it over and over again. Even an old horseshoe can become an implement of danger. Watch as Miller Knives uses the U-shape of the shoe to cook up a pretty looking blade with a bad arse curved handle. That bend is sweet.
Video: In order to harden the edge of steel, swords are often heated until they're impossibly hot and then quenched in liquid to rapidly cool down. This creates a much stronger grain structure in the steel which obviously leads to a much stronger sword. An interesting thing that happens during this quenching process is how the sword dramatically bends before it snaps back into shape (with a slight upward tilt).
As always, John Heisz can transform old, rusty blades into lovely works of art. This time, he turns a circular saw blade into a drawknife. A drawknife has two handles on each side and a blade that is meant for shaving down wood. Seeing a straight blade come out of a circular saw is pretty impressive, but what might be even cooler is how Heisz created the two handles: he bent the steel and burned it into the wooden knobs, and added copper coils at the end for style.
Video: At the start, the knife looks to be in pretty bad shape. It's spotted and stained and totally rusted. But with a little tender love and care, the steel is shining and sharp and beautiful once again. The high carbon steel used in Japanese chef knives can be susceptible to rust when used with things like fresh fruit, but in this case the rust didn't settle in too deeply on the steel.
Video: Don't ask why anyone would ever make a wooden switchblade, just appreciate that we live in a world where a wooden switchblade could be made. John Heisz put together a wooden knife that pops out like any old switchblade and it's pretty neat. He sands the wooden blade down and grinds it like you would any other knife and the end result is such a beautiful piece.
Video: Watch as bladesmith Walter Sorrells turned a railroad spike into a knife. Railroad spikes aren't meant to be used as an edge tool, but it's cool to see Sorrells bludgeon the crude spike into a pretty awesome knife with a coil for a grip. The metal coil was created by elongating the spike and wrapping it around and around a mandrel.
Video: With enough skill and patience, any sort of metal object can be heated up and forged into a weapon. It always make for such a glorious process too. For example in this video, a wonderfully threaded steel cable rope gets pounded and pounded until it resembles something that can be shaped into a knife. There is so much work in the transformation but the end result is totally worth it.
Video: This video shows off the versatility of a Chinese chef's knife, also known as a Chinese cleaver. For a big hunk of metal that looks at home in a butcher shop, the cleaver can actually handle precise tasks as well. From cutting meat and butchering chicken to finely slicing vegetables and tofu to even making designs with cuts, the Chinese chef's knife is a very useful tool for the kitchen.
It's a good idea to keep your best kitchen knives outside of the drawer, where they can get knocked about and damaged, but a dedicated knife block also takes up valuable counter space. An even better solution than both is to turn any flat surface in your kitchen into a magnetic knife holder using these vinyl decals.
Video: Mad genius Colin Furze did it. He made one of the coolest video game weapons — that would be the hidden blade and rope launcher in Assassin's Creed — a reality. It works just as advertised! You can shoot out the grappling hook and then retract the rope to lift yourself up and over walls and buildings (though because this is real life, you need to loop in a harness of sorts). And the hidden blade just pops out and in with the flick of the wrist and is ready for you to slice the hell out of things.
Video: Here's a really cool video showing the daily routine of Chelsea Miller, a knife maker. It's fun because it's filmed from her perspective so you get to see what it really takes. Fiercely Curious, who made the video, writes, "Chelsea Miller hand makes stunning knives out of old horse rasp files. She often uses maple from her family's orchard in Vermont and will bury it in the snow to spalt the wood into beautiful patterns for her handles."