Worlds Sharpest Knife Obsidian vs 60,000 PSI Waterjet

[Music] about four months ago we posted a video of us cutting obsidian and since then we've gotten a lot of comments of people wanting us to make a knife out of obsidian we've got a couple different methods how would make the knife but first we got to cut out the blanks oK we've got two knife blanks we've got a thin one a thicker one what are the strategies I think the true way you're supposed to do is called mapping and then we're gonna also try it just with like normal way you would sharpen the knife are you a professional Napper do you know how to nap I think a nap earlier today and then this one we have a professional knife sharpening kit supposed to be the best knife sharpening kit on the market see if we can which one we can actually make sharper and more naívi and then the final test will be cutting a tomato to see which knife slice is better and then after that if we're bored we'll probably just like cut each other a knife fight yeah knife fight last time you stabbed me Craig will mediate it next up let's go find a napping stone stone to nap on this would be like metal is it I honestly know nothing about this is an authentic Native American napping tool don't put us on that first nap that's oh that's a pretty good look at nap we were way off on how to do this you hit the edge and then it breaks off and gets a nice and nappy I think I might slice my hand it's getting pretty sharp over there I get fish so you're supposed to like break bigger pieces and kind of see where the lines run and then base it off that but we cut it with the waterjet so this is kind of my knife you point right here I'm working on you think it can pass the tomato test with our primitive tools this is about the best I feel like Dave where's Craig at they get to the bathroom like 20 minutes ago we should go see if he needs help girls Craig are you eating in the bathroom clean yourself up that's disgusting is that toilet paper yeah are you still using wads of dry paper to clean up after your bathroom messes you've got to try the one wife Charlie from Dollar Shave Club the sponsor of today's video see isn't that better oh yeah Dollar Shave Club has got you covered head to toe with shampoo toothpaste body wash but wipes and I think they even have razors all shipped to your door for just a couple bucks a month now you might be asking why are these guys promoting Dollar Shave Club I've never once seen him clean-shaven well that's cause we have the cleanest bus around the statement Oh verified by FDA you're licked Esther did your starter kit with the executive razor and some samples of some of my favorite products it's dollarshaveclub.com /water jet five bucks do it okay now that we've got craig all cleaned up and taken care of yeah back to work let's sharpen the other one now [Music] so it turns out obsidian is hard who knew that part is cut flat and then we tilted it up so we will get a natural point and then you can sharpen it for six hours then the ultimate tomato test [Music] [Music] [Music] it's got like the perfect knife blade serrated edge on it cut straight from the waterjet we meet a bread knife do we even need to sharpen it see the I'm pretty sure I could slice a tomato right now yeah effortless I could probably get like a paper-thin slice here that's a real tomato fun fact for the day did you know that obsidian can cut atoms in half then they call it like nuclear is that fusion or fission I don't know but that can do that I learned it in the comments of our last video this is the napped knife oh yeah that's looking good okay that's actually doing better than I thought it would I thought you just be smashing it flat okay let's see the thinnest slice I can cut with this [Laughter] substantially worse but better than we thought someone were better at mapping I think you could do a decent job pending its manner but probably not as good as the water jet straight out of the water jet I think we have a product here I think that's like a finished product right there we could go door to door and start selling that right now we'd have success we just need a handle on it maybe a handle made out of woolly mammoth tooth whoo there are two takeaways from this video one you don't need to buy a knife sharpener just get a water jet and to go to dollarshaveclub.com get and get yourself some one wipe Charlies and shampoo and razors so if that stuff you do on your teeth Oh toothpaste that you should get them out I hear good things [Music] [Music]

Channel: Waterjet Channel

Views: 3,485,763

Rating: 4.1926551 out of 5

Keywords: waterjet channel, water jet, water jet cutting, waterjet, water cutting, water cutter, cutting with water, obsidian cube, cutting, cut, cross section, cross-section, cut in half, inside, interesting, science, fascinating, satisfying videos, amazing inventions, obsidian knife, obsidian knife cutting, obsidian knife sharpness test, cutting obsidian with water jet, cutting obsidian with water, obsidian ring, obsidian fusion, splitting atoms, cutting obsidian, waterjet cutting

Id: T7HPc9IIRcg

Length: 7min 3sec (423 seconds)

Published: Fri Aug 03 2018