How Lawn Mower Blades Cut Grass (at 50,000 FRAMES PER SECOND)

How Lawn Mower Blades Cut Grass (at 50,000 FRAMES PER SECOND) - Smarter Every Day 196

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6 жыл бұрын

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#lawnmower

Пікірлер: 11 000

@ZetPerson0 6 жыл бұрын

At 6:03 my stepdad walked in and told me to go mow the front yard

@huntcringedown2721 6 жыл бұрын

Hey Smarter Everyday. I really Hope you will find my comment. I need ya to rewatch your Rolling. shutter video and consider how is it 4D. I made a comment but it drowned in thousands of others so I will just past IT here. I know you will get what I mean. "SMARTER EVERY DAY, we think similar, I know you can analyse this topic well so PLEASE do: Consider this. This is actually badly made 4D video. Assumimg that time is the forth dimension we as the 3D creatures can see only points (like frames or pictures). Like stick is a never ending road for an ant (like time for us). There is infinite amount of dots (points) on the line but only when you see all of them at the same time you can spot the line. The same thing with time. These videos show you not only where the string was at this specific second. It also shows you where it was at every other milisecond. This is an actual 4D !!!"

@chrishansen9323 6 жыл бұрын

*Thanks for reminding him

@mrcow202 6 жыл бұрын

This is no surprize though, i pooped while writing this comment and didnt sign a press release. Get real man! 1.3 million people watched this video so far. It was bound to happen to someone.

@jesussuperlightchris5797 6 жыл бұрын

Seemed rubbish explanation, seems just brute force.

@trayble5907 6 жыл бұрын

ZetPerson mmm

@benjaminwarren1577 5 жыл бұрын

walks into barbershop Destin: you know lawn mowers? Barber: say no more

@patrickcook2013 5 жыл бұрын

i was the 100th like.. youre welcome

@randomhunter1236 4 жыл бұрын

I was 323rd, you're welcome

@outra5810 4 жыл бұрын

i was not 420, you're not welcome

@981porsche3 4 жыл бұрын

I was the somewhere between the 76,000th and 77,000th like. And nobody cares 🤷‍♂️

@jaredellison326 4 жыл бұрын

651st like and very ambivalent

@pd1026 6 жыл бұрын

Your sound guy did an awesome job on this one!

@smartereveryday 6 жыл бұрын

Gordon from A Shell In The Pit Audio is amazing. Did you know you can follow him on Spotify? I'd love it if you did. My favorites are "Mountain" and "Rings in Rings in Rings" open.spotify.com/artist/0HIiXblDOFPXxkuI35wOMx

@drizzlingrose 6 жыл бұрын

yeah, ever since that video where he showed how the sound is made, ive appreciated the sound design a lot more in the slowmo videos :D

@skylarker9 6 жыл бұрын

Great job!! My fathers old gravely walk behind had horrible air flow. 60 years old with years of brush hogging. When we straighten up the cowlings around the perimeter the cut improved tremendously.

@shaunsurname8275 5 жыл бұрын

@@gregkinney2565 glad it's not just me who noticed that

@CaptainJacksIsland 4 жыл бұрын

My barber can't even cut my hair, let alone give me physics lessons.

@vast5853 4 жыл бұрын

My barber get mad Bc idk what tapper means

@bryanestrito 4 жыл бұрын

I only got barber stories from my barber

@bigcountrymountainman9740 3 жыл бұрын

Just don't let him run a lawn mower across your head and you'll be a-okay

@admiralshwartz3956 4 жыл бұрын

“Don’t modify your lawn mower” Project Farm: *heavy breathing*

@notchipotle 4 жыл бұрын

he even replaced engine oil with banana 🤣

@MrSkepticism 4 жыл бұрын

Lol

@THEMOWERMEDIC1 4 жыл бұрын

@projectfarm

@boomattack02 4 жыл бұрын

Yes 😂😂😂

@harveymccoy6426 4 жыл бұрын

I understand that reference

@Spiderbro8 5 жыл бұрын

I'd love to see how a scythe cuts grass. Does the curvature of the blade help or is it just for shape ? What's the technique etc

@whatthewhat11 5 жыл бұрын

Not sure how the curve helps, if at all. I do know scythes need to be much sharper than a mower blade, like kitchen knife sharp. They also need to be honed very often while in use

@phillip3696 4 жыл бұрын

the curve is because you kind of swing it around yourself and because your arms draw a curve the blade has to be that too the grass is getting cut due to the slicing movement

@clivehorridge 4 жыл бұрын

grassynole07 Speed is the key, blade to ground speed. Fast and consistent, it’s an inertia tool. Of course the blade should be razor sharp, done with light strokes of a fine grade stone every 4-5 minutes of cutting time. An impressive tool in the right hands, and the movement is all in the knees and hips.

@johnstarkie9948 4 жыл бұрын

whatthewhat11 A scythe is slicing tool, like a Katanga. The curve is so that the scythe blade hits the grass blade at a very small angle, about 10degrees, and slices it. The cut swathe is less wide than the scythe blade. It is not an inertia tool: an experienced user can move the blade quite slowly. This is quite different from the rotary mower blade, which hits the grass blade at about 90degrees and so depends on speed and inertia. The cut swathe is as wide as the blade is long. I was taught to use a scythe by my father, who (65 years ago) used it for mowing hay, and by the gardener at the Manse who used a scythe to mow the squire’s lawn (A British lawn; grass 0.5 inches).

@Incredibletoo 4 жыл бұрын

Don’t think it was invented for cutting lawns .

@shure46 5 жыл бұрын

Heck , just come watch me mow the grass , it's always in slow motion , I'm 60

@jordanroyal9762 5 жыл бұрын

Haha.

@blacksmithbeta5337 5 жыл бұрын

I hope I have even half the humor you have when I get there..

@5.7virus75 5 жыл бұрын

😂💯

@b_f_d_d 5 жыл бұрын

LOL

@randomhunter1236 4 жыл бұрын

@@yo848 dude wtf

@michaelduffy90 4 жыл бұрын

Destin: Mowers don’t cut like scissors. Reel mowers: Am I a joke to you?

@achilleonv 3 жыл бұрын

The first thing I thought of when I saw this video last night. I wonder if he is aware of this since making the video.

@davidvickers8425 3 жыл бұрын

Haybine.

@andyalbrecht4284 3 жыл бұрын

Beat me to it!!!

@johnjornod6429 2 жыл бұрын

Obviously many people thought the same as me. The neighbor across from my parents mows his acre with 5 reel mowers he pulls behind his riding mower that is just pulling. He says it cuts sharper and straighter and from how manicured it always looks I'd have to agree. I think some golf courses use these as well.

@somaday2595 2 жыл бұрын

@@johnjornod6429 Fairway and greens- Reels..cut more evenly and closer to the ground. Rough - Rotary. The reel mower blades are harder to sharpen and require more overall maintenance from what I have been told.

@th3_pl3b 4 жыл бұрын

This is the most dad video I've ever seen

@Jeremy-sf2xf 3 жыл бұрын

I concur

@joshuachampie15 3 жыл бұрын

I feel attacked. 😄

@trevorharley4475 3 жыл бұрын

That's why I'm here. This is awesome.

@colormesarge 3 жыл бұрын

Wait until you come across Reel Low Dad

@Nictator42 6 жыл бұрын

I love how Destin can turn something as simple as how a lawnmower works into a fascinating hands on science experiment

@smartereveryday 6 жыл бұрын

Because IT IS a fascinating hands on science experiment!

@charstringetje 6 жыл бұрын

Simple? I think its ex scythe ing!

@Luka-xx5ve 6 жыл бұрын

I just wanted to comment that, things we dont even think about are amazing.

@WiseWik 6 жыл бұрын

Who said it's simple? You just don't understand the complexity of the world created around you.

@SoybeanFarmer3300 4 жыл бұрын

@@Luka-xx5ve - it's like someone else did all the thinking and we were just amazed. yea, it happens.

@thechewyMCchewy 5 жыл бұрын

10:00 pm : just one more video 3:00 am : how lawn mower cuts grass

@piffelpaff7297 5 жыл бұрын

So you have the UTC Timezone

@pags5zonda623 5 жыл бұрын

Currently 9:57pm. I know that you've just described my night

@jeremyneu5799 5 жыл бұрын

@@pags5zonda623 currently 2:56 am est just clicked on this video, the prophecy is true.

@Nate-bn5kk 4 жыл бұрын

Try turning a blue light filter on your device and turning the volume to the lowest setting you can with out making it too hard to hear.

@prateekpanwar646 4 жыл бұрын

5:01 whoa wait... 5 I thought it's 3. By, I'm going after just this one

@SwedeGuy328 3 жыл бұрын

This also shows why it's important to having a sharp blade while mowing, ie; cutting the grass. Great series BTW!

@m4rvinmartian 2 жыл бұрын

I'm glad I saw this near the top. Those blades were embarrassingly dull and rock pitted. I sharpen my blade at the beginning of the season, and then a couple times during.

@TheOriginalFaxon 2 жыл бұрын

Yea Destin is a smart engineer, and he has a workshop to boot, i'm surprised he didn't sharpen his blade for the video xD

@skohcl 11 ай бұрын

Came here to see/say this... some of that grass looked sad post-cut...

@W94urndks9urneos 2 жыл бұрын

You can learn from anyone if you are humble enough to ask. Great job showing this!

@AGlimpseInside 6 жыл бұрын

That intro was kind of “Mythbusters” Esque... I like it!!

@pelufaz8435 6 жыл бұрын

A Glimpse Inside I think that was the point

@magic0418 6 жыл бұрын

That legendary guitar riff!

@graywolf3495 6 жыл бұрын

And the welded plate

@ahoes6369 6 жыл бұрын

Esque

@AGlimpseInside 6 жыл бұрын

Aubrey Hoes Thank you I made the change. Appreciate it

@louispotter9051 3 жыл бұрын

No wonder why it’s harder to mow when the grass is wet. The blade can’t lift the grass up because the water/dew adds up to the weight. This is very educational. Thank you for posting this video. I highly appreciate it!

@uncrunch398 Жыл бұрын

Mine appears to cut fine. I have to stop often to clean the under side or empty the bag and clean the chute. Letting it grow too long between cuts can add to this problem or even be necessary for this to be a problem.

@davidgibson9866 3 жыл бұрын

The scythe deserves its own segment...I’ve seen people mow a field faster than a weed eater can be fueled and started .

@lutherwallingford4773 3 жыл бұрын

One guy wasn't a guy. Yikes. Hope you're still with us.

@phhiggins 3 жыл бұрын

The scythe is remorseless

@CleaveMountaineering 3 жыл бұрын

Collaborate with Mr Chickadee on the traditional scythe.

@rhymereason3449 3 жыл бұрын

Nothing like a razor sharp, just peened scythe... love mine!

@allendean9807 3 жыл бұрын

YES

@bigfootandbananaman4746 6 жыл бұрын

I want to see a chainsaw. It wouldn't be cool in wood(because wood is opaque) but maybe in clear plastic. I have always wanted to see the blade in slow motion tearing away wood chips

@trentguymon 6 жыл бұрын

A circular saw would be cool too, especially if you could see how each tooth cuts from a different side.

@Tigerskunk 6 жыл бұрын

Bigfoot And Bananaman for some insight. I would not say that chainsaw tears away the wood. It's more of a wedge that shaves the wood. Each tooth on the Chain just shaves a little more off as it's pulled through the wood. Similar to a wood plane shaving wood off. Circular saws do the same thing.

@nerdygamer11 6 жыл бұрын

I rarely bother to comment on KZfaq videos, but I came down here to also request chainsaw footage.

@WhoDatBoudreaux 6 жыл бұрын

I agree with the chainsaw, including circular saws. My question would be about different chain types (not so common) or different circular saw blade types (more common). I know saw blade types are for rough cut (fast ripping) vs smooth cut (usually slower). I imagine there is a trade off between how much material you can knock off with each tooth VS bogging down the motor and loosing RPM & efficacy.

@jaredlapierre1304 6 жыл бұрын

I also want to see a chainsaw, a real nice gas one and maybe a comparison to a decent battery powered one. I'm curious about a few things.

@Nighthawkinlight 6 жыл бұрын

It's true. Neighbors must mow lawns whenever a camera is rolling. I don't know how that law got on the books but it is what it is. edit: Also, as a former landscaper: you can get high lift blades for your mower that cut way better than your standard blades.

@notek_music 6 жыл бұрын

Where would you find those high lift blades?

@PS3RatBag98 6 жыл бұрын

Jackson Kotecki Your local helicopter store of course

@Dark0neone 6 жыл бұрын

fuckgoogleplus lmfao

@mattls7918 6 жыл бұрын

NightHawkInLight hey dude, love your channel

@XenoTravis 6 жыл бұрын

I wonder if it will help my lawn mower not get clogged all the time.

@mynamesnotimportant6941 4 жыл бұрын

Anyone ever "mow" or "weedeat" with a stick as a little kid?

@noahshaw8247 4 жыл бұрын

My name's not important: like in the lines of the driveway?

@mynamesnotimportant6941 4 жыл бұрын

@@noahshaw8247 yeah, or just tall grass next to an old building 😂 Had to be kinda tall, so on the sideways didn't work the best

@noahshaw8247 4 жыл бұрын

yeah i learned how to actually weed eat because we have a landscaping business

@JuliaCV9 3 жыл бұрын

I like beating weeds with sticks

@dontnubblemebro 3 жыл бұрын

I had fencing wire for that! Mainly bigger weeds. Then I sharpened some steel flat bar to do the same thing.

@evans.1448 2 жыл бұрын

Just watching that first clip of the mower cutting grass in slo-mo was well worth it. Amazing work, as usual!

@StraitD2 5 жыл бұрын

I learned something today too... your lawn mower blades are super dull lol

@tonysmith5077 5 жыл бұрын

I noticed that to.

@paulstandaert2042 5 жыл бұрын

It is kinda interesting... at one of my first jobs, the guy I worked for had me use a lawn mower which was later found out to have the blade upside down. It did not cut well, but it did... far better than I ever expected it to.

@rogerwillis7692 5 жыл бұрын

@@tonysmith5077 *too

@Popscotch328 5 жыл бұрын

I just wanted to kiss those blades with a bench grinder. Or a file. For real.

@paulsoetaert 5 жыл бұрын

@@paulstandaert2042 I thought you were me lol

@Dirtmonkey 6 жыл бұрын

Lets do a collaboration on a stump grinder. We can show how the teeth disintegrate the wood as they grind the stump away. That would be perfect for a slow mow sequence. I have a brand new one we can use. I've done a few heavy equipment videos like that and have plenty of gear to test out.

@samantoniak1657 6 жыл бұрын

Also your retaining wall videos saved my backyard.

@MrRoboticeyes 6 жыл бұрын

yes please

@Mike-dk1wf 6 жыл бұрын

That would be awesome

@samuelyoung2671 6 жыл бұрын

Would be awesome

@Grumpy_old_Boot 6 жыл бұрын

Throw in a Chainsaw and hedge trimmer as well, while you're at it. :)

@alejandrosalazar6975 4 жыл бұрын

“You’ve spent a ton of your life on a lawn mower” New Yorkers: am I a joke to you

@davep6977 4 жыл бұрын

New Yorker: what's a lawn? Grass? isn't that something you buy

@gavinkvinlaug692 4 жыл бұрын

I like in NY on a farm and mow 10 plus hours a week

@alejandrosalazar6975 4 жыл бұрын

Gavin Kvinlaug NYC

@gavinkvinlaug692 4 жыл бұрын

@@alejandrosalazar6975 ok but u didn't specify

@joshuar3632 4 жыл бұрын

Yea dont lump the rest of the state in with the "California of the east" (nyc is its own mess that ruins it for the whole state.)

@graphic_destiny_7885 4 жыл бұрын

Finally a video about how the blade looks when actually cutting the grass I was trying to find a video like this for.....well years😂

@slewp 6 жыл бұрын

i love you Destin. Your personal hype for figuring stuff out is infectious. These videos, for many reasons, are some of the best pieces of content on the internet.

@HowToGuys 6 жыл бұрын

"No Grass is harmed during this video?"

@EPhotoAlbum 6 жыл бұрын

Kedar Nimbalkar that's funny

@shrekdonkey9551 6 жыл бұрын

Tell that to my ripped meat eating friends that dont like u messing w there food’s food

@lelanddimmer5979 4 жыл бұрын

Reminded me of the 'honey I shrunk the kids' movie.

@greenshui Жыл бұрын

How wonderful! As an engineering student, I always wondered what was going on under the lawn mower engine. Thanks for the remarkable video.

@nerdyhustle 6 жыл бұрын

1.7K blades of grass have disliked this video.

@schmuelinsky 6 жыл бұрын

They are very edgy, it seems.

@aaahhh1180 6 жыл бұрын

Nah, they are just being grass.

@astrokid7664 6 жыл бұрын

lol

@MustafaMuhalab 6 жыл бұрын

939+

@rudolfkallang9077 6 жыл бұрын

I think there are so many cow watching this and dislike it.

@meetim2931 6 жыл бұрын

The blade does create 'lift' (read airflow) but it's not required to cut the grass, or else line trimmers wouldn't work. The grass breaks when the blade speed is high enough that the grass can't get out of its way (inertia). The bent blade is a fan that lifts & blows the cut grass into the catcher or out a chute. That effect stops when the bent bit wears out.

@lou196t 4 жыл бұрын

Great video! Awesome camera work and love the slo-mo the best. Finally got to see how the blades of grass get sucked up then sliced. Mystery solved. Thanks a lot.

@user-jf2fi7rl7g 8 ай бұрын

Lawn series: Does a drop spreader spread more fertilizer when it's full (compared to the last quarter before empty)? Why do some garden hoses kink and others don't? Does a sprinkler apply water evenly, or more in some areas? Is a reel mower like a pair of scissors? How does an aerator really let the air flow in, although the holes are far apart? How can you reduce evaporation on your lawn? How does cutting your awn to different heights affect evaporation, spreading of grass plants, wear resistance, weeds...

@etherealemily4901 5 жыл бұрын

Lawnmower blade, blade of grass Mowing is actually a sword fight with nature

@HaunterOfKanto 5 жыл бұрын

I learned that mowers pulled the grass up from "Honey I Shrunk the Kids"

@tomward8640 5 жыл бұрын

HaunterOfKanto that’s a good movie 🍿

@herculesmclovin 5 жыл бұрын

Great point, well recognised! And a fun example too :)

@oliver__snow 5 жыл бұрын

It cuts because the grass is wet and sticks to the super fast blades. Flymo lawn mowers blow the grass down.

@SeanFerree 5 жыл бұрын

Same 😁

@allendean9807 3 жыл бұрын

I’d love to see a deep dive into scythes. High speed, showing how experienced cutters hold their angle, etc…

@SkaterBabyy96 4 жыл бұрын

I didn’t know I needed this video in my life. 🤔😂

@joe-lw4nw 6 жыл бұрын

A weed whacker has no vacuum so I wonder if the speed of the strings makes up for the need for a vacuum by just hitting the grass blades extremely fast. Also an analyzation of different weed whackers in slow motion would be awesome to watch

@PapaDutch 6 жыл бұрын

The purpose of a string trimmer is to be portable but for small areas. The line wears out, but will not cut your shoes... That is the trade off The OTHER aspect of it is that a weedeater can get into DETAIL spots where you CANNOT drive or push a mower easily So it is truly for trimming. This is why commercial outfits use a big mower - but generally have a team of followers trimming the walks and edges

@Chrispmiller84 6 жыл бұрын

Remember the old trick where you unfold a newspaper and lay it across half a ruler. If you hit the ruler fast enough you could break the ruler in half. The speed you hit the ruler at was just too fast for the newspaper to lift up, so the ruler broke. This is how lawnmower blades work. It's speed, not lift. I mean, the lift does help in various ways, but it's certainly not a pivotal part of the process. Please do a video with perfectly flat and straight blades and see what happens. I bet you it'll cut grass pretty well.

@dbgarlisch 6 жыл бұрын

Destin, I think you got this one wrong. I agree with Chrispm84. I assert that this is a turbulence + momentum phenomenon. Not a suction one. The little blades of grass are whipping around in the turbulence and eventually get hit by the mower blade. The mower blade is moving so quickly that the grass can't move out of the way (due to momentum) and get chopped. I would also suspect that some grass blades require two or more hits before they are chopped down to the mower blade's height.

@jakkank 6 жыл бұрын

david garlisch I think Destin is over thinking this. Where I live we don't use lawn mowers but grass cutters. It's basically a high speed fan on a stick that spins a thick nylon(can use steel blades but nylon strings are safer since you arent in danger of a blade chipping) very fast to cut grass and it cuts pretty well. No suction, no wind.

@WhoDatBoudreaux 6 жыл бұрын

I'd also point out that when using larger farm equipment (good ole bush hog), those blades are elongated chunks of iron swiveling around under a shroud. I don't think there is much of any lift in that equation. It's more like bludgeoning the grass until it short.

@Justin-ou6gq 6 жыл бұрын

Yeah I think it's more of an inertia effect

@ecoloqito 6 жыл бұрын

Chrispm84 Well yes, but what I believe the lift does beside help a little with the cut is eject the grass so is "clean" enough to keep cutting without interference. Thought I've seen mowers with straight blades.

@durangodave 3 жыл бұрын

Another great video, thanks. At 7:23 if you look close at the left over grass (or shorter old grass) after the cut, your blade is ripping the grass because its a dull blade. Thats how the grass gets the brown jagged ends because of a dull blade which opens the door to grass disease and harder / longer to heal, so your causing unhealthy grass as well. Professionals may carry several blades with them and even switch them out during the busy day of mowing if they see this effect.

@kadedorsey5038 4 жыл бұрын

Ok two things if you ever think about revisiting this. You should set like a control where you get blades without the tab and see what kind of difference there is and also I wanna know how the old push mowers work the ones with the spiral blade

@JustinSchmidt 5 жыл бұрын

I felt itchy for you... 0:30

@wormsyy9004 5 жыл бұрын

Justin Schmidt hahe

@giselle232008 5 жыл бұрын

I'm allergic to grass and all I could do is cringe and scratch lol

@dylannewton8934 5 жыл бұрын

Lol

@stacksack6060 5 жыл бұрын

Yes

5 жыл бұрын

Why would grass make you itchy? it's soft.

@devonwilcock155 6 жыл бұрын

Anyone else wanna see a weed whacker in slow motion?

@laurenm1630 5 жыл бұрын

Yes

@terrimorrison8888 5 жыл бұрын

Yes

@Zuul47 5 жыл бұрын

Yes

@JurgenUffink 5 жыл бұрын

Jup, with wire and blade please :)

@Andy81ish 5 жыл бұрын

Not just wire and blade but there are two types of wire, round and the twisted square type. Why is one better then the other?

@alexgrigoreas4825 3 жыл бұрын

Excellent video to show how important it is to keep your mower blades sharp.

@scorpion19142001 3 жыл бұрын

Have you ever seen a Hover Lawn Mower? I think they came around some Where in the 60's. The lawnmower basically hovered over the grass, like floated over the grass & cut the grass @ the same time. Super maneuverable when it's running.

@JonathanTash 6 жыл бұрын

Well, the most obvious thing to study next is the weed wacker, but I'm curious about the garden hose sprayer. You know, the one with the dial that you can use to switch between spray options like, shower, jet, and mist. I'd like to see an explanation of how the water breaks up and spreads out as it travels through the air.

@rattso6664 6 жыл бұрын

You most likely put more pressure for jet with a different pattern and less pressure for mist with a different pattern

@dash8brj 6 жыл бұрын

I agree - the weed whacker (also known as a line trimmer or whipper snipper) would be a great second edition to this series.

@paulengr 6 жыл бұрын

Not exactly. Spray Systems does the science behind sprayers. The shape of the cavity is very carefully designed to get different spray patterns. A lot more to it than just pressure like turbulence and flow regimes.

@marieflinchbaugh3326 6 жыл бұрын

Jonathan Tash I want to see the weed wacker

@seanobrien7568 5 жыл бұрын

You always study whackers

@LawofMoses 5 жыл бұрын

Hey for fun you should so a slowmo to see if dandelions actually duck under the blade when you mow the lawn 😁

@okaylars3248 5 жыл бұрын

i agree it's weird how they always survive

@juansolo1617 5 жыл бұрын

@@okaylars3248 Try pulling your mower backward over them. They disappear. It's weird but it works.

@okaylars3248 5 жыл бұрын

@@juansolo1617 ... illuminati confirmed

@juansolo1617 5 жыл бұрын

@@okaylars3248 lol it took me a second but that actually sounds perfect.

@okaylars3248 5 жыл бұрын

@@juansolo1617 ahahaha

@petermartini446 4 жыл бұрын

Hey Destin look into reel mowers, they work just like scissors , the best way to cut grass

@lukephilpot5660 4 жыл бұрын

I'd love to see that footage again with the tabs bent down to a neutral position. 😀

@lordmadmunki1918 3 жыл бұрын

It would still cut, the tabs simply create air flow to move the clipping out of the deck. It’s just speed, same how a sword cuts. This video is false.

@EmilBrikha 6 жыл бұрын

I can’t believe I just watched a 10 minute video about mowing. I also can’t believe I was intrigued. You sir are my favorite hillbilly in the world 😂 and the world needs more of you.

@smartereveryday 6 жыл бұрын

Roll Tide.

@JakerMB 6 жыл бұрын

I just watched a 10 minute video about mowing grass and didn't get bored. You know how to make a good video!! @smarter every day

@prithvirajb1953 6 жыл бұрын

JakerMB I did tho

@Healthy_Horseman 4 жыл бұрын

I'd like too see a reel mower like they cut golf greens with.

@teeb9969 3 жыл бұрын

Definitely earned my subscription..I love the "How things work" ...never knew that and I've been cutting for years

@sdmarlow3926 6 жыл бұрын

It's not to "pull the grass up." The lift is designed to expel/discharge the clippings, unlike mulching blades, that have less of the lifting force and are designed to make secondary cuts.

@NINJABDUDE 6 жыл бұрын

Why didn't you use smoke to show the airflow?

@hcoyhis 6 жыл бұрын

NINJABDUDE probably too much turbulent air around the mower from ambient wind, not to mention he's shooting the video at home so what would he use for smoke? He would probably have to use smoke balls which would get sucked up into the blades unless anchored. The grass does a well enough job at showing airflow.

@spldrong 6 жыл бұрын

NINJABDUDE yea, or put babypowder or something in the grass and see it get lifted out.

@MindBodySoulOk 6 жыл бұрын

I was going to suggest explosives and rupert gum drops.

@RumbleLab 6 жыл бұрын

NINJABDUDE that's a cool idea but perhaps Hunter is right.

@rjjarecki 6 жыл бұрын

Yeah Destin, why didn’t you make a better video?!?

@markcaruso815 2 жыл бұрын

lol I thought I was crazy trying to research the science behind how lawnmowers cut grass. Nice to know someone else out there is doing the same. This all started out because I was trying to figure out what the best grindangle would be for cutting the lawn. It would be nice to have a video on The different angles and how it affects cutting the grass. Thanks keep up the good work

@kirkendauhl6990 3 жыл бұрын

I’m 25 and younger than both you and your barber and I knew that about lawnmowers from a fairly young age. I’m glad you’re still learning and finding new information without being embarrassed in any capacity about little facts you may not have considered because that’s what I aim to do when I’m your age and beyond. This isn’t a condescending comment either, I’m both surprised I knew something you didn’t and also inspired by your motivation to keep learning even though your career and studies have left gaps that you’re still figuring out. Keep it up, I love seeing these videos because I don’t know everything either lol

@Dirtmonkey 6 жыл бұрын

I love this series! If you want more info on this I can take you to the engineering department of Toro and take you behind the scenes. We could also do a series on Heavy equipment with Volvo.

@DavidLeon140m3 6 жыл бұрын

volvo sucks.... cat is better

@Dirtmonkey 6 жыл бұрын

Thank you DMZ!

@kristianvoulopos3352 6 жыл бұрын

This would be neato

@Tom2112Tom 6 жыл бұрын

I was just going to comment that he should contact folks that manufacture lawn mowers and talk to a mower design engineer. Quit guessing and ask the people who already know.

@AlejandroFerrariMc 6 жыл бұрын

Please, make this happen!!

@spencerwilton5831 6 жыл бұрын

Cylinder mowers (called reel mowers in the US) have opposing blades. One is fixed to the frame, the other is wrapped around the cylinder (usually 5 or more separate blades) and as they rotate they shear the grass between them selves and the fixed blade. They make a much neater cut, and for that reason are used on fine lawns, putting greens, tennis courts etc.

@jeffreymonceaux5926 6 жыл бұрын

Spencer Wilton my first mower. No ethanol!

@SlaveToMyStomach 6 жыл бұрын

I was going to say the same thing. Reel lawnmowers have been around, I'd say, for more than 100 years. No, I can't provide a citation. They typically have a grass catcher on the back. For a push type lawnmower the reel is driven by the wheels via a ratchet system of gears so it can continue to spin even when the wheels were stopped. The sound of the ratchet was a sure sound of summer many years ago. Even today, the grounds keepers for golf courses use reel type lawn mowers on the greens. A rotary blade just wouldn't do, maybe on the fairways but not the greens.

@VitaTuggummin 6 жыл бұрын

oooh. thank you!

@donjear2226 6 жыл бұрын

They also get wracked but non-grass (sticks, rocks, toys, etc.) running through them more easily and more labor intensive, is also why they are better suited to highly manicured small areas.

@Sylvan_dB 6 жыл бұрын

Also sickle bar mowers and similar used for harvesting hay (just drops it instead of pulverizing).

@produKtNZ 10 ай бұрын

0:23 " i'm just E X C I T E D - LETS DOIT! " - that was infectious and made me smile for quite a while 🙃

@jaketurner6554 4 жыл бұрын

You’re such an interesting, intelligent KZfaqr. So fun watching all your videos.

@Forssa1 6 жыл бұрын

You just went with your assumption that your hypothesis was correct; that the blade wing is what makes it work. You never tested it without.

@989567567 6 жыл бұрын

Yes that is what I thought. Please cut the wings and compare the results to show the effect. At 5:50 I thought the grass could also be lifted by its own stiffness.

@Highstranger951 6 жыл бұрын

He doesn’t have to because it’s not an assumption, it’s fact.

@Forssa1 6 жыл бұрын

Then show me.

@jpe1 6 жыл бұрын

Highstranger951 that is not how science works. Hypotheses are considered potentially factually true after empirical testing, not before.

@Highstranger951 6 жыл бұрын

Forssa1 do your research guys.

@gaberouse3351 6 жыл бұрын

Slow-mo starts at 7:13

@chosenArchitec 6 жыл бұрын

Whew, Thank you ~ can't believe it took that long, all that yapping

@efdbjon2114 6 жыл бұрын

you have to watch the whole think if you want to appreciate the science of it

@iwantmytacobacc.2040 6 жыл бұрын

thankyou.

@gaberouse3351 6 жыл бұрын

MJM Productions I agree 100%, but sometimes I like to watch the slow mo first so I can think about the footage while he discusses it throughout the video.

@TheSpiffyNeoStar 6 жыл бұрын

*Slow-mow.

@theshadowknows6969 3 жыл бұрын

Out of all the people on KZfaq I would want to meet you the most. You seem like a really cool guy to talk to!

@nickanderson3499 4 жыл бұрын

Cool video. Always thought the bent up tabs at the back of the blades were to help expel the grass. Now I know better, thanks!

@VicMorrowsGhost 6 жыл бұрын

You know what you have to do. Make your own blades without the lift tab. Check the slow mo and see if the grass doesn't stand up. Shouldn't be too hard it's just a flat slab of steel.

@bigwooly8014 6 жыл бұрын

VicMorrowsGhost better to just heat and hammer the lift edge down. Balance is very important for those blades, mainly for the integrity of the blade deck. The vibration of an unbalanced blade will eventually rip the pulleys out of the deck.

@hotchef1984 6 жыл бұрын

Symmetrically grinding opposing blade faces across a central axis is as difficult as it sounds. Add into that keeping it balanced as the previous comment noted does not make it any easier.

@SgtJoeSmith 6 жыл бұрын

VicMorrowsGhost you can buy mulching blades like that. No tabs. I've had stupid employees put blades on upside down and could barely tell a difference. Rpm fast enough to still cut.

@joshh2860 6 жыл бұрын

Just go buy some

@UncleSpence 6 жыл бұрын

He also should make a clear deck to let it do it's thing properly. Opening the hatch like that will effect the upward flow, wouldn't it?

@RumbleLab 6 жыл бұрын

A chainsaw blade/chain seems like it has some interesting science behind it. Any thoughts?

@jerrytomas3136 6 жыл бұрын

RumbleLab Really fast sharp thingies 👍

@superdivinus987 6 жыл бұрын

RumbleLab link the time

@SgtJoeSmith 6 жыл бұрын

RumbleLab it does. It cuts on the top not the side of chain for 1. Teeth alternate so cuts straight and not pull to the side. Ramps in between teeth so chain only cuts what it can handle without digging in and jamming. Plus chain has to remove the debris as you cut. Low kick back chains have higher ramps so you can't cut as much with each pass and won't jam as hard if it does get caught. That's based on my understanding. Sorry if I mis spoke about something

@boogsc9715 6 жыл бұрын

Yeah it would be interesting to watch the material being pulled out

@RumbleLab 6 жыл бұрын

Joe Smith isn't there a link that "slices" followed by a link that "digs" almost like a knife and a chisel?

@annabeeee2093 4 жыл бұрын

"If you're like me, you've spent a ton of your lives on a lawn mower..." On a lawn mower? Boi i gotta push my lawn mower i aint that privileged 😂😂😂

@lemonaid8678 4 жыл бұрын

Mcr and Green Day are life. Dont question it. I got a half acre that I cut with a weed eater due to roots and it’s on a slope.

@MoarteaLunii 4 жыл бұрын

Stfu emo

@benn454 4 жыл бұрын

I haven't used a lawn mower in years. Lived in an apartment before I moved to where I am now and I pay somebody to cut my grass now.

@cbasalt12754 4 жыл бұрын

He could be referring to a lawn tractor, or riding mower.

@lemonaid8678 4 жыл бұрын

Christian Basulto that’s the same thing isn’t it?

@meatmoose4472 3 жыл бұрын

That's why in honey I shrunk the kids during the lawn mower scene they get sucked up and thrown out of the mower! This video brought back some nostalgic feelings, and I learned something new.

@KrisBendix 6 жыл бұрын

Also this one is called - SlowMo-wing.

@venre-gamingandmore4330 6 жыл бұрын

Damnit

@valeniusthekat 6 жыл бұрын

Kris Bendix i see what you did there 😃😂

@ZesPak 6 жыл бұрын

Get out.

@deluxeassortment 6 жыл бұрын

why do people hate puns? I love them

@Keldor314 6 жыл бұрын

I'm not entirely convinced that the upward force from the lawnmower blade plays an especially significant role in the cutting part of mowing. Certainly it's useful overall, since it's what lets the lawnmower collect the grass in a bag or in the case of mulching mowers, suck it up so it gets hit by the blades again and again until it's shredded into little pieces. However, an object moving at 200 MPH will rip or cut through grass regardless of airflow. There's just too much friction against the edge of the blade and inertia making the grass fold over onto the blade as it moves past for there to be any chance of it somehow whipping back around and sliding under the blade intact. I'd like to see a control test with the curved lifting portions cut off to give a flat blade. Also, what if you installed the blade upside down so that it provided down force? A comparison of the quality of the lawn cut under these conditions would be very interesting! This would test the assumption that the lifting blade pulls flattened blades back up straight again so they're cut to the same length as all the others. If this is the case, doing a comparison immediately after mowing might be a mistake since any blades that were flattened by the mower may still be laying flat. Better to give it 24 hours after mowing for the wind to straighten them up again first. As far as I can tell, the lifting lawn mower blade is a relatively new invention. Before this, blades were presumably flat, though sadly I can't find pictures of old lawn mower blades anywhere on Google. Apparently there are no antique lawn mower blade collectors for some reason. Now, what about cylinder blade lawn mowers? The geometry on those makes no sense to me. How do they work?

@vertxxyz 6 жыл бұрын

cylinder blade lawn mowers' paddles/blades push grass into another blade and operate like sissors in that respect.

@gregorybogart5200 6 жыл бұрын

I can tell you as a Lawn Maintenance Provider that the lifting tab on the back of the blade makes a HUGE difference as to how well that blade will cut. If I use a "Low" lifting tab type of blade, the grass doesn't get cut as evenly or I have to make several passes over the lawn. The "High" lift tabs allow me to make a single pass. Also note that the "High-end" Commercial mower have tall decks (5"+) to maximize airflow under the deck to provide that perfect cut. Great video as always!

@centurion726 6 жыл бұрын

The old rotary mowers cut like a pair of scissors as he explained in the video (cutting blade and bed knife blade), but there are commercial mowers that are in the Flail Mower category. They have a ton of little blades on a shaft/drum that spins and cuts grass like a knife cutting paper pretty heavy duty machines.

@dmarsub 6 жыл бұрын

i don't necessarly agree but i upvoted it for visibility. it is interesting to answer these questions in more depth. 7:15 doesn't look like it cuts the grass right now. also the cutting efficiency heavily relies on the bility of the cut thing being able to move away. if you jus a grass blade from the side it will be way easier.

@ericmaedgen2352 6 жыл бұрын

Yes it is. Actually one of the most important aspects besides sharp blades. Yes it will cut, but cutting ALL the grass is the end game. And airflow will provide that. If the grass blades aren't lifted up they will just lay down never making contact with the mower blade. 26 years commercial mowing experience here.

@hafzahameed1911 4 жыл бұрын

Welcome back to another episode of “look where quarantine has got me”

@thomasbordelon4149 2 жыл бұрын

Just stumbled across this video. That tab on the back of lawn mower blades was invented much later. Mower blades were just flat before the grass bag came into play and the clippings had to be lifted and blown into the bag. They also served a dual purpose of mulching by shutting of the exits but keeping the clippings airborne inside of the mower deck long enough to chop them over and over again. What cuts the grass depends on the sharpness and momentum of the mower blade and the weight of the grass blade. “Come on Man”

@CodeRedCody 6 жыл бұрын

All the dislikes are from grass

@nawtmyrealnamelol 6 жыл бұрын

can confirm. I am a blade of grass and I hated this video

@Boodieman72 6 жыл бұрын

Or they thought it was the other type of grass :D

@PsychoticBovine 6 жыл бұрын

got your grass kicked, didn't you?

@theRealRindberg 6 жыл бұрын

No from people that realizes that he's wrong

@awsomedude12345678 6 жыл бұрын

Dislikes are from people who realize how stupid this rich kid is

@XPStartupSound 6 жыл бұрын

What about a manual lawn mower with no engine?

@woodsy900 6 жыл бұрын

Matthew Shultz that uses the same principle as scissors or the two blade method

@JMadoreTutorials 6 жыл бұрын

That's a rotating scissor/shear at work there.

@nathanr5846 6 жыл бұрын

Do you mean like an old fashioned push mower?

@rdmsh 6 жыл бұрын

Here’s a video of mine cutting paper kzfaq.info/get/bejne/p950gpmSuMi3d4E.html

@MesquiteAutomotive 6 жыл бұрын

They're called reel mowers. They have a back edge and work like the scissors do.

@thomaswarren2699 4 жыл бұрын

When dustin was lying down on the grass with the scissors he gave me a great idea for a military style punishment... "..as punishment, you're gonna go out there and cut the grass.. .. with these"

@jacquelinesenouci2207 4 жыл бұрын

Nah, an x-acto knife, that would make it worse

@whiskey1mantis357 3 жыл бұрын

Yep The little 1 inch hair scissors and a gauge to measure it. Ask me how I know.

@samuellawrence4334 4 жыл бұрын

0:18 destin’s energy is so contagious it reminds me of me as a young kid. I want that curiosity back

@anasmrright 6 жыл бұрын

A grazing cow will also lift and chop the grass leaving a nice short lawn. Thank goodness they don't spin at 200 mph.

@fhdhdhfjdjdjd444 6 жыл бұрын

anasmrright what, are you afraid of lawn mowers?

@korishan 6 жыл бұрын

ROFL!! 😂 If it did, make sure to dump buckets of chocolate over it first

@BrassStacks 6 жыл бұрын

anasmrright , You ain't ever been in a twister, have ya!? 😁

@Gloworm17 6 жыл бұрын

Twister (1996) Anyone? Cows do spin in the air. Sometimes multiple times. (The 200 mph moo)

@fmkwvejf 6 жыл бұрын

Lawn mooers

@claythomas9467 4 жыл бұрын

You have just confirmed my theory which I have thought about once a week every week from March through November for about an hour since I was 12.

@lucaskronbeck6805 4 жыл бұрын

Clay Thomas same

@putribaros3186 3 жыл бұрын

Haha yea

@mr.flintstone7314 2 жыл бұрын

Awesome video, and found just in time to save me from cutting the front off of my lawnmower in search of similar knowledge.

@siriosstar4789 3 жыл бұрын

I really thought this was going to be a ridiculous video BUT , it turned out to be really COOL. The slo mo and varying the speed of playback is incredible . . really interesting .

@ChaseWeeks 6 жыл бұрын

Reel mowers cut like a pair of scissors, you could go to a golf course and get high speed video of them mowing a green.

@LTVoyager 6 жыл бұрын

I think he's too young to know about reel mowers. 🙂

@dangerrangerlstc 6 жыл бұрын

Reel mowers are still very much a thing. My uncle has a couple antique ones too

@LTVoyager 6 жыл бұрын

BW Tractors They are practically extinct. Only in a few specialized applications like golf courses and often used by the Amish.

@dangerrangerlstc 6 жыл бұрын

LTVoyager they're also often used on pro ball stadiums with real grass. They're not extinct, just specialized. Because specialized places are the only ones with the training and maintenance department to keep them running effectively

@LTVoyager 6 жыл бұрын

BW Tractors I call that nearly extinct. You can still by buggy whips also...

@No-je9mj 5 жыл бұрын

5:35 Your Welcome :)

@CommentsRage 5 жыл бұрын

HotDog thanks

@alexplante6566 5 жыл бұрын

Thanks

@edwardkrazek2740 5 жыл бұрын

God bless you son

@user-jm1lz6zg6m 5 жыл бұрын

You're

@_JS96 5 жыл бұрын

My Welcome what?

@junkhondas481 2 жыл бұрын

I use reel mowers at work.( golf course). And it’s an amazing thing you should look at closer. We have a bed knife and a rotating reel witch has multiple blades on it. They interact like scissors and give you an amazing cut

@EoRdE6 4 жыл бұрын

As a follow up to this, it would be interesting to see this compared to how some people just cut their lawns with a scythe... Like completely manually. There's lots of videos on the internet of people doing it, but not many showing the mechanism of what's going on there.

@justincerveny 5 жыл бұрын

Youre barber is a lowkey mechanical engineer. Times must be tough

@ianzurek6984 5 жыл бұрын

Maybe being a barber was his true passion or just a more chill job as you get older and have acquired a hefty retirement already.

@ianzurek6984 5 жыл бұрын

or times are hard too lol

@djjazzyjeff1232 5 жыл бұрын

It's like Mike Rowe says. There's no reason why a plumber can't quote Friedrich Nietzsche, and there's no reason a philosopher can't fix his own bathroom.

@andrewnguyen3613 6 жыл бұрын

How does a weed wacker work because it’s just a plastic wire spinning really fast without any lift tabs.

@rebecamugwort862 6 жыл бұрын

Og Dumpling and how does it break? It’s deigned to hit grass, and somehow it always fails hitting grass. 🤔

@occultninja4 6 жыл бұрын

If you're talking about push mowers and edgers that use string, I believe they work simply but applying a lot of pressure to a small area, resulting in shredding. It's not hard to simulate, if you hold a flat sheet of paper up perfectly flat and get a clean hit on it with lawnmower string, it will slice the paper. individual grass stems and leaves are much weaker and or thinner than paper, so they get shredded. it's more akin to the grass being pulverised you could say, as you can look at the deck of a weed eater and see the remains of shredded grass splattered against it. Also a more dark way to look at it, of you were unfortunate enough to get your leg clipped by one, it would most definitely draw blood and slice clean through the skin even though it's not 'sharp.' It doesn't have to be sharp to cut. To grasp this you just have to grasp the physics of cutting. Cutting is applying enough force to break the bonds that hold a material together. Sharp objects do this by focusing the force over a small area, which increases the pressure, however you can also achieve it by increasing the amount of force you use over the same area. Can you cut a block of wood with a dull kitchen knife? There's 2 ways you can do it. Sharpen the knife until it's rediculously sharp, or swing the knife with a rediculously amount of force. The later is how an ax basically works. If you feel an ax blade, it's not exactly going to cut you. But if you swing it, there is so much force behind the swing it plows through whatever it hits regardless of how sharp it dull it is. That is sort of what is happening with the weed eater string. it's being swing around so fast it doesn't matter that it isn't sharp. It has enough force concentrated in a small enough area (force / area = pressure) that it can 'cut' the grass it touches. As for why the string breaks. Well, the string is still plastic and being subjected to huge amounts of abuse. Like everything else made of plastic it will give out, especially if you try to cut something with it it wasn't meant to cut or cannot cut that well, such as really thick patches of grass, or if it gets clipped by a stump or a fence or a piece of metal.

@philb5593 6 жыл бұрын

Basically the same wacking motion without the lift. The grass can't bend out of the way so it gets torn

@BlackEpyon 6 жыл бұрын

I've also gotten clipped from the weed whacker before. Didn't break skin, but left a REALLY sore welt. This was also a commercial-grade 28.9cc beast, so I was fortunate that I didn't have it at full throttle at the time (it was spinning down).

@segatore1295 6 жыл бұрын

BlackEpyon I got a weed wacker on my ankle it drew blood

@hurley954 3 жыл бұрын

This is what turned me on to reel mowing! Reel mowing is a clever way of "scissor" cutting grass using a spinning reel cylinder with blades, referencing against a bed knife. You can imagine this method is better for the grass because if properly "tuned", the reel mower avoids (or minimizes) tearing of the grass blade. You're probably aware of this already, and the rotary method is certainly more interesting to investigate! But I hadn't seen this mentioned yet.

@jonathanporkchop3511 3 жыл бұрын

My dad taught me this when I was first learning how to mow my lawn cool to see someone having the same questions I had

@PHX787 6 жыл бұрын

lawn tool series... a slow-motion video of one of those hammer-type sprinklers! I know it's fluid dynamics and the force of the hammer that moves the sprinkler back and forth....but man, i would love to see how that looks in slowmo!

@WhatIsKenDoing 6 жыл бұрын

Or better yet, one of those giant water cannon sprinklers they use on farms!

@SlyPearTree 6 жыл бұрын

How about push lawnmowers that are entirely human powered, i.e. no engine.

@yosefmacgruber1920 6 жыл бұрын

Those have scissors and get jammed up on the tiniest twig.

@the3nder1 6 жыл бұрын

If you keep the blades sharp that isn't as much of an issue. Also for certain jobs they are way better at getting even length.

@MmeHyraelle 6 жыл бұрын

you talk about the roller type weird looking blade? I am curious too!

@Trident_Euclid 6 жыл бұрын

I do that only using a sickle

@ArcticArsenal 6 жыл бұрын

They are basically a rolling pair of scissors. There is a moving blade, and a stationary blade, and they create that shear point that he talked about at the beginning.

@Sp1der44 4 жыл бұрын

If I have to go down the KZfaq rabbit hole there's nowhere better than here and Veritasium. : P : D - MM

@CreativeFixing 3 жыл бұрын

Something interesting I learned from this. Thank you.

@Belboz99 6 жыл бұрын

Try a manual push mower with rotary blades, they are scissor action. Newer ones are actually a lot easier to use as well.

@lucdestrube 6 жыл бұрын

Golf courses primarily use "reel mowers", basically ride-on push mowers. Pretty cool

@WaskiSquirrel 6 жыл бұрын

I use one of the new ones. It's very easy to push, and good exercise. Biggest drawback is if the lawn puts up seed heads. They get too tall and I need to attack them with a machete.

@DanielBisagni 6 жыл бұрын

Oh you have to do how a chainsaw blade!!!!!! Please please please do a chainsaw blade!!!love this series idea.

@HDDcam73 6 жыл бұрын

Daniel Bisagni that was my first thought too

@tannerbeverley26 6 жыл бұрын

Daniel Bisagni going with the grain, vs against

@kato249 6 жыл бұрын

Especially looking into cutting edge angles and cutting depth and why they should be adjusted for the type of timber being cut.

@PapaDutch 6 жыл бұрын

A saw chain is an intricate mechanism made of many moving parts - that having been said, there are many videos on how to sharp a chainsaw chain - it is complex and I will not detail it here because it has been talked about elsewhere, most notably by "Swedish Homestead" at YT

@southaussiegarbo2054 6 жыл бұрын

Tanner Beverley they cut trees down across grain I belive

@MrHeavyzz4 3 жыл бұрын

Love your channel. Thanks for putting your advertisement at the end of your video I enjoyed all 10:27 minutes worth.

@jamesfilms_ 4 жыл бұрын

I watch one video about how mowers work and now KZfaq is trying to sell me massive industrial mowers

@ericconley8699 6 жыл бұрын

How does a weed wacker work

@smartereveryday 6 жыл бұрын

On it. Several people will probably try to scoop me on this one, but I have an interesting idea for it. If you know any tool companies wanting to partner let me know.

@jamesflood7985 6 жыл бұрын

Literally was just about to comment this! Great suggestion 😊

@ericconley8699 6 жыл бұрын

Thank you and I like your videos

@Warm_Ice0 6 жыл бұрын

It's simple. It wacks the weed

@fiveseven15 6 жыл бұрын

Yes. Weed whacker doesn’t have lift tabs, it’s just a whip what manner of sorcery is this? Also what’s better the weed whackers that use line, or the ones that have those plastic blades

@GaviLazan 6 жыл бұрын

That Mythbusters reference lol

@JoelGibsonBagelator 6 жыл бұрын

Do not click this link, it's just self-promoting spam to a trash song. However, I did not notice a mythbusters reference... Anyone care to enlighten me?

@GaviLazan 6 жыл бұрын

Indeed that is spam. at 0:25-0:28 the part with the name of the channel on a metal plate is just like the way Mythbusters would do a transition. And if I am not mistaken the music itself is the same (or I have been watching SED for so long that his music has been embedded in my brain and I no longer can tell the difference).

@JoelGibsonBagelator 6 жыл бұрын

Ahh! Good catch, you're totally right, very mythbusters-esque.

@DeathbyPixels 6 жыл бұрын

Gavers23 No, that’s definitely Mythbusters music. Makes me happy to hear it again :’)

@cfrayre6572 4 жыл бұрын

Wow thanks for going out of your way on making the video.

@trainiax 3 жыл бұрын

Twelve years ago I bought a replacement lawn mower blade that was supposedly optimized for "mulching". Behind the regular blade edge with the upward tab, there was a notch, then a second blade mounted higher and angled downward. When I installed it, I noticed two things immediately: 1) the mower was significantly quieter; and 2) cut quality was exceedingly poor. That's when I learned about the vacuum created by a mower blade - which was cancelled out on this blade by the extra downward-facing cutting edge. The aerodynamic changes related to the lack of vacuum were also apparently responsible for the reduction in noise. I took the blade back for a refund and have used standard blades ever since. Another fun fact: The tab on the rear of the blade can eventually wear down from friction against the grass clippings it's pushing upward. I've gone through two heavily used blades that, in addition to having a lot of material worn off the front from repeated sharpenings, had the rear tabs (which gently curved upward) worn down to a knife-edge.