Top 10 saddest anime moments レンジの使いすぎで電気代が2万超えました（泣）

"Hey, what are you watching?" "I DON'T KNOW!!!!"

この人の動画当たり前のように一般家庭には無いもの取り出してくるからすき

Kiwami: Wanna see me make the worlds sharpest knife? Disappears for 10 years* Kiwami: Wanna see me do it again?

No one's talking about how this guy over here literally just picked out tiny individual grains of silica from all of that sand, he has to be the most patient person in the universe

Person: *goes to kiwami's house.* Person: what's that? Kiwami: oh, that's just a working particle accelerator I made from tofu.

This is one of the strangest videos I've ever seen. I honestly didn't understand a good portion of the fabrication techniques, yet it was thoroughly interesting and entertaining. I like it.

I completely forgot he was making a knife until he started shaping the iron into an edge. I legit thought he was just making glass using sand and a microwave for 90% of the video. I kept thinking to myself “this is a lot of steps for glass”

People: "Why does it take so long for a video?" Kiwami: Manually sorting grains of sand

I feel like a cat watching his owner do taxes. This man's thought processes are just beyond my comprehension.

最後のストーリー何?? 笑

this man's videos are basically just moments that make you say "what does this have to do with anything" and whether you find out or not by the end is a 50/50

When I die give him my ashes so he can make me into a knife

Forgot how much controlled chaos this man makes while fabricating a knife.

ひよこの頭ごーりごりされてるとこでめっちゃ笑いました！

I didn't understand a single thing that was going on, but that 5 second timer was insanely cool and I like this guy's editing style and sense of humour.

title: make knife with sand content: an entire chemistry curriculum

There is more chemistry here than the whole Breaking Bad series.

What a lovely acrylic knife with snowglobe sand inside it. A shame I was expecting a glass knife made from melting sand . . .

I came to watch a knife, finished ordering a chemistry set, small hammer, some ceramic crucible, morter and pestal set all from Amazon prime. Thanks alot man...

Who else thought the turtle was just for fun, and then found out it was a magnet

I love that he always titles his videos “worlds sharpest” like there’s some other guy out there making knives out of the same increasingly stranger materials, stamping his foot in rage as his dull blades are once again outmatched by Kiwami’s superior sharpening methods.

最初から最後まで意味がわかりませんでした！！！！また動画楽しみにしています！！

最後の演出、サイコすぎてツッコミ入れるのも戸惑うわwwwwwwwww

I don't understand

I love how this man is so goddamn funny and has so much personality without saying a single word or making a sound

この人の動画、内容そのものも面白いけど音がいいんだよな……これがASMR……

鉄の裏にできた青やピンクのキラキラは一体何物なんでしょう。とてもきれい

That was the most intense 20-minute science class I've ever taken.

Once again, here's what's going on for you curious people : Sand (at least in japan) frequently contain tiny specks of magnetite, which chemically speaking is Iron oxide (Fe3O4). As the name states, it has magnetic properties, so you can separate from sand easily with a magnet. Sand in general is made of a lot of stuff, part of it is made trough rock erosion, and an other part is shell fragments. most rocky stuff are Silica Oxide + some metallic element, and depending of the temperature and pressure at which they solidified their atomic arrangement can differ. anyway, the white/clear crystal things are quartz, almost pure SiO2. As you probably know, that's what glass is made of. after preparing some iron oxide and quartz samples, he uses his whetstone to prepare a very thin Aluminium power, tortures an innocent chick, proves us that his fingers do in fact at least use to belong to a human being, and then mixes the aluminium with the iron oxide. since his iron oxide is in pretty big specks, what he makes it essentially low grade thermite. for those who don't know, aluminium has a higher affinity for oxygen than Iron, so you can get the oxygen to jump to the aluminium. the difference in oxygen affinity means that there is a difference in potential energy, when the reaction occurs all that energy is released in its "raw form" : heat, and a lot of it. That's why thermite was used during the war to destroy machines you didn't want falling into enemy hands. The reaction is actually pretty hard to activate, so i'm surprised a microwave can do the trick but why not. the result is a nice clump of raw iron and some aluminium oxide (alumina). the iron is magnetizable so it reacts to a magnet, while the aluminium oxide forms the slag, is it brittle and not magnetizable. the shiny blue specks you can see at 4:10 are not "gems" that spawned from nowhere, it is sand impurities that came with the magnetite, the heat melted them into glass, and whatever impurities they contained gave them the blue color (it can also be aluminium or iron from the reaction.) He then calcinates the sea shells : as i explained in a previous video, sea shells are essentially calcium carbonate CaCO3, under extreme heat one CO2 is ejected, leaving CaO, quicklime (the video says calcium carbonate but that is a mistake). just as last time, this molecule hates itself and reacts with water to form Ca2+ 2OH-, so the solution is very basic. this reaction also releases heat. This time rather than using this stuff for its "basicity", he dries it up to get Calcium dihydroxide powder Ca(OH)2. that's literally the same thing but not in solution. He chars the flowers out of pure spite. they're probably friends with the chick anyway. that will teach them ! pretty sure the shelf witnessed everything, let's get rid of it too. an added benefit is that you have a bunch of carbon and ash now. the color of what he crushes at 6:23 is odd to me, but i think that's what it is. wood contains a lot of carbon, sure, but plant cells also contain a bunch of ions, just as any cell does.depending on the kind of wood the ashes will contain different proportions of the same things but you will get mostly lye (NaOH) and potash lye (KOH). There is other stuff too but those are probably the most prominent. Because elements of the first column of the periodic table really just want to get rid of one electron so they can have a nice smooth outer electronic shell, all of that will dissociate into water as Na+, K+ and OH-, the latter being what basicity truly is. actually there should be a fair share of calcium in this mess but whatever, it behaves pretty much the same here. accordingly, the solution is basic, although 13-14 is pretty damn high for ashes in water if you ask me. he probably had to do a few batches, evaporate some water and pool them back together to get that. after drying the filtered solution, he says that is sodium and potassium carbonate, but i don't see what guarantees that, it could also be lye and potash back again for all i know. Supposing he's right, that means precipitation with carbonate ions occurs faster. chemically speaking CO2 (from the fire) + OH- makes a carbonate group (HCO3-) that will complex with + charged ions and precipitate. Now he mixes some quartz, some calcium hydroxide and some Na/K whatever this is. long story short, he's making glass. glass is mostly SiO2 just like quartz, but to melt it you need flux, that's what calcium hydroxide and the other stuff are. Flux is used in metallurgy and glass-making to lower the melting point of things. don't ask me how it works, i like to learn weird stuff but there's a limit even to that :-/ okay that worked, now let's break that glass and turn it into glass power so it's easier to re-melt. there's a reason why people made rock tumblers rather that shaking stuff by hand, but i suppose having no girlfriend since the previous episode increased his...ability to do so ;-) anyway, while he's at it he prepares some powdered copper to add to the glass for an hopefully nice color. he needs it to be oxidized apparently, so in the nuclear-powered microwave it goes. that makes a nice deep blue color, pulverize this blue glass again and wha- what the hell is he doing ? that's not going to react with water. what is this white powder ? having actually seen the video entirely before typing, he is preparing different grades of "sand" that will sediment at different speeds, but that came a bit from nowhere. at some point this is supposed to become a knife, and incredibly enough he decided to not go with a handmade glass blade (probably impossible to sharpen without breaking), so it's time to forge that iron clump into a blade ! heat, hammer, repeat, quench for hardness. from that point he is just making the knife, but actually it was really unclear what he was doing because he skimmed over it pretty fast. the elastic thing at 17:30 confused me because i thought it was the result of the UV resin, but it's it not. it's just some stuff he will use as a placeholder for the aquarium part of the blade. he puts it in place and then pour more UV resin on top. after sharpening he re-applies some UV-resin to fill in the scratches in order to have a nice finish, breaks the handle of a second half-knife and completes the build by putting the different sands inside. he also puts in a tiny bit of hand soap to make the bubbles more stable so that the sands move in a more interesting way. now he just has to murder the first cucumber-carrying girl he can find !

Man just casually makes thermite in his microwave😂

Everyone's parents: "Don't put metal in the microwave" Kiwami: Not only puts metal in a microwave, but puts *thermite* in a microwave

Aside from making knives out of everything, did he just teach us how to dust for fingerprints with foil and a chicken?

Normal person: Glass This guy: Hmm yes, cooked sand.

Starts with sand, ends with veggie ninja.

это самое безумное, что я видела в своей жизни

前は職人が仕事で包丁研ぐくらいの割合で包丁研いでたのに、今の動画の割合は理科の先生が趣味で日曜日に包丁研いでるくらいの感じw

This dude literally made Glass in a Microwave just for fun. He is a menace.

おもしれぇなぁ・・・・ほぉーーーーって関心しながらみてたのにｗ 8:34 腹筋が炭酸カルシウムになったｗｗｗ

did- did they just teach us how to dust for prints?

all his videos have me like “so how does this contribute to making a knife??” until i forget that he’s making a knife, and then suddenly he’s got a finished knife.

This is the most abused microwave oven ive ever seen

Your art is so beautifully functional, amusingly disturbing, and I mean both the video AND the knife. Please never stop creating in your microcraftsman way.

Me watching the video without skipping then realising he really made an amazing knife but still confused how he really did that. Amazing art! Bravo!!

This dude sorted sand into different colours Get this man a patreon

Me for most of the video: "that's not a knife" Me at the end of the video: "THAT'S a knife"

Why does the sound in this particular video sound so crispy and amped up? I’m not complaining because I love it it’s just an observation and it’s making my brain feel yummy and tingly 😊😊😊😊

I can see this channel going into a HowToBasic direction with these videos LMAO

He's gone from banging rocks together to advanced chemistry. This man is speedrunning human civilization

Title of the video: "kitchen knife made by cooking sand in a microwave oven" Me: ohh, that sounds like something I could do by myself Person in the video: *proceeds to decompose the materials into their basic chemical elements, then rearranges their atoms to form the knife Me: I'll stick to 5-minutes crafts...

たまに見てたけどこの動画、発想があたおかやん！と思った よく考えたらいつもの動画もあたおかだった なんだいつも通りか

I would have taken chemistry if I had an instructor like you! Entertaining and educational! Great job. Very cool , I had no idea what to expect😂!

this man is an alchemist gone mad

You know, if you watch all Kiwami's videos, you feel you start to slowly normalize some things, like the fish shoes, or the vibrator doll, even the melting microwave and finger condoms, like, looking at them and the reaction being: "Ah yes, the vibrator doll". But then you continue and the cucumber flies away, and you see Kiwami's thumb, and that's a whole state of emotion.

The number of individual cuts in the video alone is gigantic....must be at least 350 cuts. Best video I've seen on YT so far. It has everything: humor, craftsmanship, creativity and editing skills. Thank you and best regards from Austria.

The mini condoms with Japanese writing had me😭

Me thinking they are just playing with a turtle in the sand: cute Them: it's a magnet

I’ve never been more amused, impressed, and completely caught off guard.

"I need a knife to get through airport security." me: "I know a guy..."

Adding soap into the knife just made the effect *_Sooo_* much more better than what I was expecting! This was cool to watch lol

"Cooking sand in an oven" Minecraft veterans: *First time?*

Everyone: ugh quarantine is so boring This guy: man I just love sorting sand

最後のキュウリ断面はよりカッパーを上げると良いと思われ、、、

upon the sharpest edge the creativity of this man teeters between genius & madness

This video goes against everything I was taught to not put in microwaves.

This lad is insane. The videos aren't of this reality. The cleanliness of the space, the blankness of it. The silence of the audio, except for that which is necessary. The roboticness of it all. I feel like I've been given access to a window into an alternate dimension.

Que gran satisfacción ver con cuánta prolijidad trabaja este señor ...🔪👏

最初から最後まで理解できなかったけど、とりあえずリカちゃん人形高速縦ノリでめちゃくちゃ笑ったwww

Look away for a second and he’s doing something completely different

I can’t be the only person who’s inner 15 year old said “heh finger condoms”

I did not know chemistry could be so cute! Your little cow pitchers are the cutest and I love them

Impresionante la paciencia que tienes para hacer cada cosa

ヒヨコかわいい〜と思った次の瞬間のこれ とても恐怖を感じた 1:58

すごすぎて、もはや何をしてるか分からない、、、レンジでチンして、水にいれて、混ぜて、濾過して、あっためて、、、、、？？？？

俺の家の電子レンジと同じだ！

This video shows the mind of a genius at work, no joke, how have I never came across this guy channel, this is the best man how awesome 🙌🙌

いや過去一で不審者w 最初から最後まで分からんかったw

どんどん最後意味わからんくなってってて草

I can’t be the only one who has no clue what’s happening 90% of the time 😂

I just love the insane amount of chemistry this guy does, watching his crazy knives! Such a pretty blue from the copper ☺️ Also love how he just has all these tools on hand, the smithing setup and skills, and all the horrible Barbie stuff xD And that casual murder of the mannequin at the end xD

I feel like it’s been a hour of unrelated random chemistry sequences, we haven’t come even close to making a knife yet and I’m starting to question my sanity

"dad I wanna be a knife maker" "no son, you will go to school and be a scientist. now do your chemistry homework!!" "....okay" :]

A: "Hello this is the Amazon customer service, how may I help you?" K: "Yeah, I need to send back my broken microwave." A: "Sir, this is the 28th time in this month you're doing this. Are you sure that you're using it correctly?" K: "ABSOLUTELY. You can bet my knife on this." A: "???"

手作業で砂を仕分けるとか正気の沙汰ではない

This guy actually managed to make me sit thru a 20 minute video of random vibrations and hot stuff that wasnt porn

My guy separated sand grains. He’s that one maths question.

I thought I was watching How to Basic, I was expecting eggs being thrown in lol

手の動きから不審者感が溢れている……さすが圧倒的不審者の極み！さん……

ちょっと長めやし飛ばしながら見ようとしたら何やってるんか訳わからんくなるし、だからって戻しても訳わからん（笑）

*Don't put metal in the microwave* Kiwami: haha microwave goes brrr

If I catch my kid trying this with my microwave, THERE WILL BE TROUBLE.

I love how there's no context sometimes, so we just have to trust that he's going to have all of these things link up but, sometimes they just, don't.

Nobody is gonna talk about how this man could literally cook meth if he wanted to

*If I ever need a Ceramic knife I'll buy one at the .99 cent store!*

That was frickin awesome!!! Loved the end!!!

This guys is totally just showing off his chemistry knowledge.

This man literally picked out individual grains of silica from like a whole glass full of sand.

A work of ART ! Great video!

Nice knives✨ but I really wish there where more subtitles explaining the steps a little more clearly

ちゃんと見てたはずなのに 何がどうなってこうなったか 全然わからなかった