High-speed camera mounted on a spinning lawnmower blade 

@ganymedeIV4 Merry Christmas :)

Just binge watched your channel destin 😳

@ganymedeIV4 wtf are you on about lol

And more cowbell!

ganymedeIV4 what’s wrong with trying to save as many people as is possible? Wouldn’t you try to save people from death if you were able? I glanced at your channel and you appear to have an obsession with death. I want to warn you about the death that comes after the body has died. The death of the soul and spirit when the blood of Jesus is not found will end all fascinations about death and darkness. The one who finds himself thrown into darkness will curse every foolish thought that led him there.

What... you couldn't use the trademarked phrase?

I remember the B&W film of it and it disapeared in the actual show and he spoke of numerous takes and it working.

No flying insects were harmed in the filming of this video

you guys are crazy for standing so close to an unbalanced spinning piece of metal.

@@EternalResonance ok and?

Maybe with a mirror instead the camera and the camera above with a glass screen in front. Should be more safe.

I can imagine the camera getting loose and chopped up by the lawnmower haha

Me too and then i realised it was pointless

@@Raybo3D That seems like an awesome approach.

Cody'sLab oh Cody! I think the bouncing balls could be a windows 98 screen saver for some reason.

Good idea, but if you want to keep the same rpm with the same engine there will be a limit to the amount in which you can extend the blade.

Why?

I'm thinking it might be an additional valuable contribution to science to film some other material behaviors. Fluids, non-newtonian fluids, more foam things, dust/sawdust/smoke... who knows what else. This stable perspective might be a unique thing in material sciences. (It might also expand the domain of data available for deep learning.) (Posting here because my comment might otherwise never be seen by anyone.)

We love you hacksmith.....keep going ur doing great..... love From India

That would be much better🤔

Ah. I see you're a man of culture as well!

First thought: Really? *showes videos to friends* Yes it is!!!

Hahahaha. Definitely the most expensive thing he threw in there

OMG NO. THAT'S WHAT I THOUGHT IT WAS 😂

Ohmy

Oh yeah you have a high speed camera too

He's a furry and brony that lives in Canada, so you may have seen him before.

Gabriel Augusto Nascimento Soares he a furry? *casually subs*

I was hoping we'd get some footage of the frame lock, wasn't disappointed :D Could be an interesting video effect if it can be held at that RPM and stuff drops in.

ｉ　ｗａｎｔ　ｏｎｅ　ｓｏ　ｂａｄ

I wish I hadn't tried to learn.

and now i know too.... lol

I too was like wtf is that. a google search later...OH MY! ROFL RUFKM hahaha

A warning of NSFW is required!

Do you mean such things they use to track projectiles mid flight?

@@zvpunry1971 Yes of course.

Yeah cool idea. I was thinking that could be possible :D

That's a good idea and would work nicely to view the mower at full speed

@@tesla500 and a properly sharpened Blade.

YES! I thought something looked 'familiar'

18:05

It's a pretty familiar riff that some of us can't help but to recognize from 1987!

I was looking for this comment! Can't believe nobody else noticed the Money for Nothing riff.

I've always thought it's _Sex_ _for_ _free_ . 😂Now I'm ashamed although it makes the Bad Dragon even more hilarious.

I was wondering about that

Timestamp?

18:08 / 18:20

That one would have fit in my collection

@@Jolinders108 Kowalski, analysis

If you do this, I'd be willing to try coding up the frame alignment software.

@@jaggztech it'd have to be sensitive to the actual RPM of the blades, probably having to rig up some sort of arduino detecting the changes in light from a strip of reflective white tape on the blades. Just an idea.

I thought exactly the same, and it would be a lot safer to the camera

@@SailingFrolic Might be able to get by with just some image processing to determine the mirror location and orientation (probably just looking for the edges). Could throw a neural net at it but training that could be more irritating and complicated than necessary. Then it's just the image transform to align/rotate. Still, it could then get kind of messy with the inaccuracies of the mirror locations, but smoothing those values might suffice. In any case, we'll see if anyone ever does a mirror mounted version -- it's a good solution. Nevertheless, I think his video was also maybe demonstrating the resilience of the camera hardware? [Edit: Ya know what, you're right -- some white paint wouldn't hurt any of these processes. :) Also, I just realized the blade image itself, if in the mirror, could also be used for alignment. We could then go so far as to stabilize the images from a point on the blade... One step at a time though right? First step: RU-vid comments. Next step: 2019. Happy New Year!]

@@joshhefner7589 Hey Josh. I'm not sure if I should just ignore mistaken RU-vid comments -- I didn't mention Arduino, was referring to processing during post, and mentioned markings only in a future edit in response to someone else (because it's not a bad idea). Take care. :)

Qué haces aquí Fred?

The mill and drill press use the same chuck key, and I was tired of them always moving around and dissappearing

tesla500 I'm only poking fun 😁. I've seen "smart" guys complain about losing the chuck key but not doing anything about it. You've got the "knack" you see a problem, you fix it!

capnthepeafarmer my drill came like that

SeanBZA why would you anneal it after hardening it?

Star Gazer Hard things are brittle things. If you don’t anneal something after hardening it, the first time it hits something remotely hard it’ll shatter. As with many things, there’s a trade off between wanting an edge that’ll stay sharp (hard) and an edge that won’t chip itself to bits (annealed).

@@mrb692 I think he was referring to tempering it.

@@mrb692 Sure, but doesn't heating it to red hot and then slowly allowing it to cool completely anneal it? Doesn't that remove all the hardening? Sorry, I know the principle of hardening but I don't know the process of how it is actually implemented. Just seems odd.

Star Gazer, an experienced metalworker can use the color of the workpiece as a rough estimate of its temperature. From “coldest” to hottest, it goes cherry, red, orange, yellow, white. “Red hot” really isn’t that hot in the grand scheme of metalworking. Check out blacksmithing videos, and the thing they’re hammering on starts out white hot and by the time it makes it to yellow hot it’s back in the furnace. When hardening a piece of steel, it is rapidly quenched from a very high temperature (yellow or hotter), locking the carbon atoms in places they normally wouldn’t be. This makes the workpiece as hard as it can get. When tempering, the piece is raised to a lower temperature and allowed to cool slowly. This lets some of those carbon atoms relax out of their hardened positions, thus softening the steel. Crucially, because the annealing temperature was less than the hardening temperature, only a portion of the atoms relax back out and the piece retains some of the hardness gained through quenching. Starting the tempering process from a higher temperature or running for a longer time will result in a softer final piece, and lower temperatures and shorter times make for a harder piece. When a tool overheats and loses its temper, that’s because it was taken above the temperature it was initially tempered at. This lets more carbon atoms diffuse out, and the tool becomes softer. The practical bottom line is that a tool can withstand temperatures up to what it was tempered at, and since hard tools have low tempering points it’s critical to keep them cool.

Thanks! I think I calculated about 200G of shock for that deceleration

@@tesla500 it looked epic! I saw right away in the first cut of slowmo, how much it decelerated - there must be carnage! And sure there was - trigger thingy decided to continue with its momentum! epic project! Thanks!!!

Eric Price he needs to spin a mirror, not the camera

Had the same idea. You'd lose a little bit of the frame but it'd allow faster speeds

Same here. I watched the whole video to see if he adressed this as I thought it was "POV filming rotating things 101" (pretty sure I've seen this on multiple popular video on youtube). Plus, you wouldn't risk debris damaging the camera. Could go way faster with the mirror and would have lost way less time rigging up the jig. Even though the process of creating it must have been very interesting in itself.

Would a mirror survive the g force?

@@Cthulhu013 That's how it's usurally done. I don't see why a flat glass plate (even though you can do a mirror without glass) sticked to a steel one wouldn't be able to sustain less g force than a complicated assembly of plastic and electronics. IMO, it can sustain tremendous amount of g-force. It's just a very reflective surface sticked to whatever material you want, it's simple and solid as it can be.

@@xmtxx The main issue I see is that relative to the camera frame, the view will be rotating very fast. Depending on shutter speed you could end up with some weird looking blur which gets worse near the frame edges. The blade wouldn't look as sharp and blur-free as it does here.

Came here to say this. There’s no need to spin a camera like this to get footage.

I'm hearing Malcolm Young but too tired to think about it. xD

Damnit Carl!! Now I can't sleep thinking about it, but luckily for me I realized it's "Shake Me - Cinderella"..............I'm goin' to bed!! xD

@@MAGGOT_VOMIT sigh...back when rock music rocked. Now its just a high hat and poetry 😆

Vaaat da faak?!

Jake Steampson +1000000000 points for destroying it

LockBreaker imagine putting a fake tentacle up your butthole people on the internet are weirdos am I right

Ｉ　ｗｏｕｌｄ　ｔｏｔａｌｌｙ　ｆｕｃｋ　ｍｙｓｅｌｆ　ｗｉｔｈ　ｏｎｅ

Shaggy Rogers I draw the line at glass mason jars nothing else goes up my ass

I've seen those before, in this case it wouldn't have helped, as that wouldn't solve the dynamic balance issue. Two of them, one on top and one on the bottom, might work...

i totaly agree, but allow me to play devils advicoate for just a moment. (because i always enjoy looking at things from multiple angles) thats not a real mower blade, it a peice of steel he cut himself into a shape that resembles a blade. its probably not even sharp. ive seen cuts from both dull and sharp blades, and yes the dull ones do rip and tear the grass rather badly. but a fresh sharp blade? Mwa! *dose the itialian hand kiss in the air thing* a beauty and sight to behold. And lets not forget hes hitting hard solid objects, not grass. the behaviour is naturaly going to be different.

there was a website called meatspin that had the video you are looking for... but its gone

You mean the gay guy getting fucked in the ass by a guy wearing a condom? Already knew about that.

Agreed... turns out destroying most things with a lawn mower is pretty boring to watch :\

David Nasa im trying to post the same comment so he sees it!

dont spin the camera spin a mirror

vidyaWolf yes exactly and they can point the camera lens to the mirror from the top. It’s pretty cool way to film high speed objects without moving cameras.

Coleman Outdoors great minds think alike. Chicken legs would also be cool.

@@davidjfiedler That would be awesome!

Because the beginning is boring as hell.

Despite the rumors, no cats jumped into the blade.

Wait, CRH does those too? No respect for Lauri?

Boom.

Thank you!

I read the comments first so I could save the time! Thanks!

@@dadefope80 welcome

@@davidarnold7665 no worries!