Laser Cleaner Lifehacks

[@YouTube]

from sunlight and a microscope to a laser chainsaw 🤯

[@RobotJadul]

Leaving this for future me to see!

[@AngeEinstein]

Hello KZbin

[@thelegendofotaku8899]

Yeah great stuff

[@BigTed06]

Damn never seen KZbin comment on a KZbin video

[@Pixi-_-]

A youtube comment huh

[@blazethegame]

“Florida Man accidentally cuts an entire forest down with a doomsday laser” is my new favorite news headline

[@nathanwhite3953]

And completely believable.

[@John_C_J]

"accidentally"

[@jonslg240]

I'd actually be proud of any floridaman if he did that, even if it wasn't this awesome cat. That would be an accomplishment compared to all the headlines we normally see like "Floridaman gets his 2cm peepee stuck in a prophylactic" Or "Floridaman tries to supercharge his brain with a car battery charger" Afterall, there's already 3,000 Floridamen and 4,500 Floridawomen in the lawsuit for trying to charge their iphone in a microwave.

[@106640guy]

"Is this cut in half yet?" *meanwhile starts cutting the trees on the other side of the wall*

[@NathanPa-xo3zj]

I'm curious with Florida Laser Chainsaw Man series lol

[@tyraniccus9745]

There isn’t a single three letter organization that doesn’t have this man on a watchlist

[@YahJeff]

Goals?

[@phizc]

Got a 2 letter organization too now.

[@hawkings22]

What does the BLM, DIA, DOE, FCA, FHA, HHS, ICE, RUS, and SEC want to watch him for?

[@jc5495]

Even two with the secret service now

[@chrisgaming9567]

Goals being on the SCP watchlist

[@davidtunstall6454]

I like how it was cheaper to cut the tree down onto his house than it was for it to fall on the laser 😂

[@bensoncheung2801]

123 👍

[@spacefriend6588]

​@@bensoncheung2801456👎

[@mrgreenguy]

You are now #1 on my list of people I'm actually scared of now. Congrats!

[@Meow-bj7bb]

nice

[@nicdasl8497]

the backyard scientist deepfake when?

[@Thatonepersononthesidewalk]

YES

[@Jacob-ui6fn]

@@nicdasl8497 bruh what are you talking about

[@dwergmeneer2419]

@@Jacob-ui6fn look at OP's channel

[@chancemorine1642]

Hey good on you for emphasizing the importance of proper PPE. I remember in Physics 2 a professor told us a story about a Yag laser blinding a technician. He had moved his safety glasses up for a better look at what he was working on, dropped a wrench into the beam, and it instantly blinded him in one eye. All within a second. Lasers are legitimately terrifying.

[@dimitar4y]

they're basically live machineguns that silently shoot trillions (more) of photons at "high velocity" towards a target. you wouldn't just accidentally jostle a firing machine gun roulwd you

[@TheBackyardScientist]

I was wearing a special welding helmet made by IPG in this video, and there a sticker on the inside that says "WEAR IR SAFETY GLASSES UNDERNEATH HELMET" for this exact reason. I was worried the $450 helmet I bought didn't actually protect against IR light, so I called them and an engineer told me it does 100% protect you from the laser, but not stupidity haha.

[@twistedyogert]

They aren't toys, they are tools.

[@twistedyogert]

@@TheBackyardScientist Remember: *THE S IN SCIENCE STANDS FOR SAFETY AND THE F IN SAFETY STANDS FOR FUN.*

[@dimitar4y]

@@twistedyogert so, mantoys

[@ajhefel]

Um, for someone who has worked in places like the federal reserve, one of the biggest counterfeits we see in the industry is people "washing" ink off smaller bills and printing the larger bills on them. They are usually really bad because its not easy to get the ink off, and they scrub so the texture is off. You just showed them how to do it better lol. One of the biggest challenges in counterfeiting is the paper

[@JeromeDemers]

😂 that’s a good point.

[@au5music]

with the amount of money and effort it takes to acquire the laser, I'm not sure who would be spending the time washing and printing this way

[@Jjsupermman]

@@au5music ehhh if you do it right you technically found a unlimited money glitch and you can easily make your money back within a couple days just printing $100 bills

[@pj6073]

Anyone who's read Reacher:Killing floor will know this

[@William_Kyle-Yuki_Yuuki]

I would wager that is why UK paper money (Now plastic) has different physical sized notes for different values.

[@devinhallsworth5531]

That example where you showed how much sunlight 2000 watts is on the ground marked out was super helpful and neat!

[@MarshiiRose]

Man this is perfect! I was starting to think my chainsaw was becoming too harmless. Now I can burn, cut, and clean with the same tool while still looking like a chainsaw!

[@jonslg240]

I couldn't believe it when I saw a vid from him because I've been subscribed for a month or more lol "This better be worth it" and holy sh..cow was it ever.

[@jonslg240]

We need to think of legit applications for him now, and also (more importantly) less legit awesome ones

[@mattcook6868]

And you can blind people!!!

[@FilosophicalPharmer]

Blind people? Don’t be cornea. I’m sure he’ll set up rods and cones when he works. Iris I had one of those.

[@Wyi-the-rogue]

Eye see what you did there.

[@RGun90]

The actual "paper" that money is printed on is almost impossible to recreate and unprinted it's extremely valuable, there's been cases in the past of people taking lower denomination bills, stripping them, and then reprinting them as higher value bills so I wouldn't be surprised if Secret Service came knocking lol.

[@Aaron-zu3xn]

this isn't true the best counterfeit $100's actually used the same paper as the phone book the cheap stock,you can order the paper

[@Aaron-zu3xn]

it did used to be harder till they started trying to save money(every penny we make costs 1.6 cents kinda deal) get a counterfeit pen and mark a phone book some of them use the same paper you can even see blue and red threads in it under magnification,hairspray gives it that feel but it will stink if you don't run it thru the washer/dryer

[@JustSkyler-pt1fq]

Wouldn't be the first time a government organization told him to take down a video

[@GetTheFOutOfMyWay]

I'm assuming either the FBI is gonna come knocking, and/or that lazer is gonna be banned erm... Discontinued by the manufacturer now since it's on video what can be done...? Lol (If that lazer is even available to the public in the first place?)

[@bolivianPsyOp]

@@GetTheFOutOfMyWay it’s on Alibaba right now

[@Nighthawkinlight]

I've been waiting way too long for someone to screw around on camera with one of these things. I just wanted to see stuff burn up, and you delivered.

[@AIgoBrRr]

I've been waiting a while too, couldn't afford one. But now I have more questions. Laser dishwasher, laser toast/steaks and most importantly, can you laser clean a toilet? Is it legal to erase the faces of money and print your own on it? and more importantly, could you still legally pay with it? Basically it is real money?! Damn, I need one of those.

[@victorfox9623]

MORE FRIGGEN LAZERS!

[@TheDuckMan2523]

There’s a KZbin channel called styropyro, I think you’d like them,

[@AIgoBrRr]

@@TheDuckMan2523 sure @styropyro does spectacular things with lasers etc. but ladder he has none of these things yet.

[@iamarizonaball2642]

So… I’m a furry, all be it a new one, and this… this got me. 3:40

[@alanorcotch7822]

Knowing how dangerous those lasers are from past experiences, I had a genuine fear reaction when he just pointed the laser towards the camera

[@comradeurod9805]

I feel it. It's kinda like a gun but even more fucked up to wave around lmao

[@jeetusingh3030]

I tried to dodge it too😂

[@tobysonline4356]

@jamvey99.9 percent of the time you would be right. But that brick has me feelings little sus

[@jonasstahl9826]

​@@tobysonline4356That good thing is that we are filled with alot of fluid, like the tree he cut down the fluids will fill the hole the laser created and prevent it from going too deep to fast.

[@patheddles4004]

I /think/ the grounding clip wasn't on it, so maybe equivalent to a visibly-safed gun? Feel like it's worse than a gun that's visibly unloaded (ie. safety flagged), but not as bad as a gun that's loaded but has the safety engaged.

[@tehfriedwaffles]

You can't just put that bad apple in the end and not tell us more! Excellent video as always!

[@benpurcell4935]

I love how he put Bad Apple at the end.

[@thelazygamer8194]

plasma apple

[@craftie7721]

This one bit at the end shocked me the most-

[@Mezgrman]

@@thelazygamer8194 plasmapple

[@maruftim]

I was caught off guard by that

[@jaymichael1590]

I am so glad the secret service still lets you make videos. I sure do enjoy them!

[@tp6335]

In the event of a world War, Kevin is their greatest asset. That's why they are cool with him

[@jonslg240]

The ATF just hasn't figured out how to classify this as a firearm yet. Once they do.. it'll be limited to the point that it's worthless lol

[@corycarlson8712]

@@jonslg240 secret service goes after anything money related.... I think that's what he was referring to. He does have a dog though I think, so he should worry about the ATF as well.

[@Jordan-tr3fn]

you know what? the thing that he does with the bill is kind of classified...

[@borivoje644]

I love practical lasers. That's insane! Also the Bad Apple at the end was lovely.

[@alexandermutter929]

There is almost nothing practical about it

[@borivoje644]

@@alexandermutter929 it's practical for having fun! That is if you have safety glasses.

[@DanimeCafe]

Dude!! I had forgotten COMPLETELY about that song, and I panicked as I didn't think I'd get the name. Thank you!

[@borivoje644]

@@DanimeCafe np enjoy listening!

[@ForeverHobbit]

@@alexandermutter929 cleaning is what it was designed to do, also welding looks a lot easier

[@simonrettberg4631]

I love him calling his first welds a Cognito hazard

[@theX24968Z]

I want styropyro's thoughts on this thing now. or for him to come down there and overclock it / beef it up.

[@noodlemeister6024]

Bro's bouta make a semi-portable Death Star 💀

[@BenLA5]

From lethal to overkill to...manslaughter

[@Nightykk]

"I, 'accidentally', blew up a tank with this overclocked high power laser!"

[@mamupelu565]

Styro is gonna replicate it but 100x smaller

[@blueskies792]

Its hard not to think about styropyro when batshit crazy lasers are involved.

[@electrosmart5676]

Didn't expect he would play Bad Apple at the end there

[@whackowafer4765]

Very unexpected

[@ayss2611]

A welcoming surprise

[@OfficiallySnek]

I need a full video of Bad Apple vintage oscilloscope version

[@copyright4486]

It's been done before, but I do want a Backyard Scientist version

[@uc22_swo1p]

Usually when i watch laser video’s even the super draining lasers that use alot of energy take about 3 seconds to melt through metal and require alot of precision to keep it in the same place. But the fact that this melts through metal in milliseconds instead of seconds is blowing my mind.

[@fightme5543]

Thank you for actually addressing the safety concerns in this video! It really goes a long way to show that you care!

[@05degrees]

kzbin.infoUgkxZ67JUxum-OBTf86dczlSquHnQuSqYwnG

[@arcturuslight_]

Ye, some people don't realize that risking a chance of setting your eyeballs on fire can be a bigger deal than chance of setting your house on fire (atleast when it's just your house). I don't know how well can this type of laser reflect off regular metals that it is supposed to be used on, but I suspect some shiny or glass object can send a stray ray into yer face and ruin the retina in microseconds.

[@aiexzs]

a lot of people don't pay attention to the fact that looking at the spot on a wall can blind you a billion gazillion times faster than you can blink

[@neisjo]

Safety is always first

[@BobBob-eb4io]

​@neisjo or in the case of this channel third

[@sidecharacter3449]

11:02 i demand the full video of bad apple at the end.

[@elpatotroll9568]

Me too

[@crystalreaper2261]

Me too

[@kylewhiteman]

Yes

[@ROBLOXGamingDavid]

i wish i could but the automated comment restrictions would wipe it out. Try searching it with that exact two words i guess.

[@brunky89890]

Oh boy, I've never been so glad to be awake at midnight! Kevin: these laser heads cost a thousand dollars to replace so you have to be careful with them. Also Kevin: *attaches laser to chainsaw* Now that's the backdoor scientist we all know and love!

[@coolcoolmore]

Same it’s 12:09

[@Sherwin657]

lmao backdoor scientist

[@jonslg240]

The spec of dust thing is actually true too lol, that spec will heat up in a microsecond and burn the lense

[@chancegoodling]

Scrapman: you dare oppose me mortal

[@brunky89890]

@@Sherwin657 If you think that's funny I would highly recommend that you check out the safety third podcast, that's where I got it from!

[@drpeppergod2811]

At the start I was also pissed that they weren't wearing protective gear. I've watched enough of the styropyro to make me want to wear goggles even if the laser isn't very strong

[@RandomInside]

I don't care if someone is wearing protective gear , is your life , you are free to do what you want with it.

[@noctuabird]

Watch safety third they talk on this.

[@noctuabird]

Forgot which ep tho

[@10HW]

I agree, about half of a styropyro video is about using the right goggles and gear.

[@official-obama]

@@RandomInside he dies -> no more videos -> sad

[@NinjaSquid0208]

The taking the safety glasses off to just reveal more safety glasses was a great touch

[@Just_A_Guy_Here.]

I'm your 100th liker here & bye.

[@DDDarray]

How many layers of safety goggles would it take to give the same 1/100th of a second protection of a brick?

[@NinjaSquid0208]

@@DDDarray that's a good question

[@josephjester4917]

The glasses underneath glasses is a joke from the movie "Airplane!"

[@scintillam_dei]

It's a cliché.

[@shanesteward2597]

I love how you’re steadily becoming a supervillain. Truly an icon.

[@grumps5940]

Honestly I think he's there, just needs the funding.. *Dr Evil inpression* "$1billion dollars!"

[@zachjennings1443]

great video, always love watching videos of those laser cleaners, have always wondered just how legit they really were, and also always wanted to use one

[@cFcFire]

Think this is the first time I've seen any of them actually promote the podcast.

[@brandonmartine291]

Yeah, it’s great. I was just not expecting the “Are you a good boy?” out of nowhere like that. Left me floored for a solid minute.

[@drcgaming4195]

@@brandonmartine291 yeah that video was absolutely gold. worth a watch

[@ChrisD__]

@@drcgaming4195 Link? That was the Odd1sOut guest video right?

[@drcgaming4195]

@@ChrisD__ it was the mall santa one

[@chrisbrinzo]

This is lowkey proof that laser weapons are already well developed for military use.

[@SageRhyme]

Yeah. We have laser weapons of mass destruction. These wildfires aren't wildfires. The UK Calls their 50KW laser "Dragonfire" -- it's a bit on the nose, yeah? The US has nuclear based space lasers; that's the purpose of Space Force. Sidenote; Thebackyardscientist is a pretty cool cat. I met him and his mom -- he came into my store to buy batteries to power one of his projects.

[@pikusek2550]

I've thought i'd understand most physical things going on in your wideos but troughout this whole thing i was like "nah this gotta be the limit of this" and then i was surprised again and again. Like how is something so cool allowed to exist without the public knowing what it really is, every household HAS to have one, and i'm sure i will someday, this replaces so many tools in the garage honestly it's a steal. And that Bad Apple at the end made me happy :D

[@TheBackyardScientist]

its only a matter of time before we see units like this at Ace hardware, or even Target haha. Maybe not these high power CW lasers (continuous wave/output), but the pulsed variety (MOPA fiber lasers). Right now these lasers are in a kind of purgatory, where they are too expensive for consumers, but too much of a liability for industry. I reached out to a researcher who wrote an article about the new trend in handheld laser processing and this is what they said. Hi Kevin, With regards to your interest in handheld laser welding, I recommend you read this article (www.lasersystemseurope.com/analysis-opinion/questioning-safety-handheld-laser-welding) in Electro Optics' sister magazine: Laser Systems Europe. I would very much air on the side of caution regarding this application. We've had readers contact us in the past saying they've bought handheld laser welding systems, however are not able to use them due to safety risks/laser firms not being able to produce goggles for these systems/lack of training available. Also, at a recent laser processing exhibition, a safety firm I spoke with (producer of goggles and windows for enclosures) remarked that they are not going anywhere near this application due to the risks involved, which I thought was quite noteworthy. From what I've learnt myself about laser materials processing technology, the best solution is to always have the laser contained in a Class-1 format away from humans (in a machine, behind barriers with fume extraction technology). It's not like other handheld welding technologies and poses very different risks. That's just my two-cents. But as I say other readers have bought these systems and then just have them lying around gathering dust as they can't actually use them within the safety laws of their country.

[@pikusek2550]

​@@TheBackyardScientist So what you're saying is... only a brave enough man can use it? Man it truly is a shame that such a thing is reduced to a toy for adult kids to play with, i've read a bit of that article to check cause i've thought it's not worth it cause of the upkeep but it truly is just cause of safety and lack of awareness in this field? That's just sad, but as you've shown safety is nowhere near this thing, you could kill a person in a second and make them blind in a fraction of that. But how do you make a death laser safe? Yeah general use isn't ready for this, but at least some people can use it as private owners and for a content creator like you this is golden. Since this field is still active i'm looking forward to many uses for lasers anyway, maybe in space, where there isn't a lot of things to burn and breathe in, but i don't wanna jinx the laser making a disco party on some planet bajilion lightyears away

[@blockstacker5614]

@@pikusek2550 class 1? try class none!

[@multiarray2320]

@@TheBackyardScientist i already thought your 200w laser was absolutely illegal but this right here is a whole different dimension. still hard to believe that its allowed to have this.

[@jwalster9412]

To be fair, people probably said the same thing about other technology that was hazardous. As long as it has safety features that stop it from being dangerous, it's ok.

[@raulinday]

StyroPyro saw this and though "Yeah... boring, I can improve it"

[@Chris-ok4zo]

This man using lasers for destructive purposes makes me truly believe that we're living in the goddamn future. Also, playing Bad Apple at the end caught me so off guard.

[@truerandomchannel]

same

[@marvingomez9564]

same here but it was cool, I like his style hahaha

[@asherlehman7031]

You should double the laser wavelength with a nonlinear crystal, like green laser pointers do, a 2000w green laser would be amazing

[@alfiro6841]

and give it to the next person

[@dinamiteurdinamiteur2324]

Now converge 50 of these in one and try to cut down entiere houses. Be sponsored by mr beast

[@darkshadowsx5949]

the invisible spectrum has more energy than a wimpy green laser. It would probably just burn a hole in the crystal.

[@Zero26729]

That’s oddly specific

[@DUIofPhysics]

@@darkshadowsx5949 Literally none of what you said was right, and most of it didn't make sense. For a start, the spectrum has no influence on the amount of total power (beyond the energy per photon - which green actually has more energy then IR). The wavelength of light affects the absorption of the target material. If you want to cut copper, Green will do far better then IR, as 532nm is absorbed much better then 1064nm. On the other hand, if you try and cut something that is green with a green laser, it won't go as well, as most if not all the green light is reflected off. Nonlinear Crystals actually requite extremely high peak powers to even work. The crystals become more efficient, and the effect becomes more prounounced as the intensity of the beam increases. This is why NLCs such as BBO or KTP are usually used with a Q-Switched laser. The laser is focused in on the crystal such that the intensity of the beam is at, or close to (depending on the power density theshold and max electric field densities) it's focus point.

[@foxxtrot]

You know something is dangerous when Kevin is roasting other people's irresponsible use of the thing.

[@cjjuszczak]

brilliant, would have been interesting to see a thermal camera view as you use the laser on flat surfaces and the fridge, etc, also with different "laser shapes" like circle, figure-eight, etc :)

[@OfficiallySnek]

I'm glad I'm not the only one who thought that the "Shake hands with danger" song by Jim Stringer was a bop

[@hungcaoxuan4834]

Wow! Didn't expect a "Bad Apple running on everything" here. This literally made me burst out laughing

[@redsquirrelftw]

Every household should have one of these! I hope Ryobi comes up with one that uses their 18v system.

[@MiTheMer]

The wattage would be there.. Not sure about Ryobi but Bosch's ProCore 18V can deliver 1800W in bursts.

[@Wp-jv5ed]

Me too but with milluwakee instead of Ryobi because I wanna use it with the batteries I have and not have to buy different ones 😂

[@Kinnikinnick]

Nah, since that would be power hungry garden tool, it will use their 36V max power.

[@ColinWatters]

Well at least I thought it was funny.

[@EweChewBrrr01]

The safety switch joke cracked me up. "We don't need that type of negativity here." HAHAHA That's gold. xD

[@LabCoatz_Science]

I'm just gonna say it: Kevin has basically every KZbinr beat. Not even Styropyro has a laser this powerful (yet)! Amazing video dude, I look forward to seeing more!

[@theFLCLguy]

We need a laser off. Who can build the most powerful laser.

[@TheBackyardChemist]

He had one until he blew the crap out of it when he tried to increase output power

[@MattH-wg7ou]

@@TheBackyardChemist styropyro had one of THESE? And beefed it up?!

[@TheBackyardChemist]

@@MattH-wg7ou Nah but he had a pulsed laser that made really short laser pulses with an insane peak power that could ionize air.

[@multiarray2320]

what is the strongest laser he has? i thought its only 45 watt. even the backyardscientist had a 200 watt laser in one of the previous videos. styropyro has to catch up (maybe by building one of those military grade lasers with 2 mega watt of power).

[@_leaf-3525]

5:58 not me thinking he was about to shoot his hand with it

[@kr1tikalh1t92]

10:35 Don’t worry Frankie it’ll be okay. *Gets absolutely BEAMED*

[@CaseYapper]

ULTRAKIL PFP WOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO

[@OBIKaToby]

This is awesome. I'd love to see more with this laser. Stuff like the range would be cool. Is it theoretically possible to point it at something like a weather balloon/airplane in the sky and would it just cut right through it if you had it on some sort of aiming thing??? The speed it cut through some things is insnae. And what if you just kept adding power to one of these? how powerful would it become and it what's the limit. Could you instantly cut through massive metal plates from a distance? Just seems like science fiction. Super cool.

[@roberttrent4388]

in case you werent aware, styropyro just dropped a video trying to answer that very question

[@byrontheusurper6505]

10:18 truly a warrior fighting Inflation.

[@bakeman8]

The beginning of the video is perfect. Love the humor of not being able to resist the laser😂

[@htownblue11]

4:26 Holy smokes man. I am impressed this man is alive. And grateful for that too.

[@TheBackyardScientist]

I knew it was empty :P

[@Qbarr323]

​@@TheBackyardScientist yea but like what if you got it mixed up

[@TheDarkFalcon]

8:39 missed opportunity to "put out" a fire with the same laser that started it 😂😂😂

[@grantwells4491]

6:10 looks like an orbital laser weapon

[@bigstackD]

Great stuff👊🏻😁🍻🍻🍻

[@djamelhamdia134]

Glad to see you here, man!

[@ninjanyan1579]

collab when? lol

[@Charles.Spillman]

Your videos are always entertaining, your content never gets old. Keep it up

[@martinguerr3065]

@Don't Read My Profile Picture Ok I wont

[@imoutodaisuki]

That bad apple caught me off guard lmao

[@greenthumb2326]

Same, lol.

[@Saphir__]

So this is how the U.S. military burnt down Lahaina.

[@TeufortHeavy]

My man's probably on a watchlist💀💀💀

[@DistractedDingo]

"A" watchlist? How about *all* the watchlists!

[@lilyj.thomas4555]

He’s openly admitting he has/is

[@carmenm3538]

Did not expect to be jumpscared by Bad Apple in a Backyard Scientist video

[@_draconic]

same

[@mapxrenthlei]

10:10 How to demonetize your money

[@Wutsizbukkit]

Or yourself

[@StephenGarner-i8c]

Friend: “it’s just a prank.” The prank: 3:03

[@purple_dits333]

I like how he carries on smiling, when one mistake could kill him.

[@PlasmaChannel]

This was epic Kevin. I'd love to see a tear down of the laser. What type of juicy HV we talking about here? Also - that plasma speaker at the end is just delicious.

[@DevKerrigan]

the oscilloscope and plasma arc playing bad apple at the end of a laser chainsaw video just sold me on exactly what kind of nerd you are. Much love, bro

[@suburbanbiology]

Crazy that a laser still encounters the same problem of binding your blade when cutting a tree down 😅

[@13r4nd0]

I'm an arborist, and one day, I hope there will be a light saber invented. That would be my favorite tool to use in a tree company. From tree to slabs in minutes ❤ Meanwhile, planting some trees along the way.

[@tron7_]

it already exists, but not in the way you're thinking

[@Oliver-ur5pi]

hacksmith already made one

[@wyvernnemecek595]

Plasma cutter. Alternatively you could make a Beam Katana like from No More Heroes.

[@DWal32]

what about a hacksaw that uses a series of mirrors and a single very powerful laser

[@dickJohnsonpeter]

I so want to try to trim branches with one of these and be able to just stand on the ground and not have to mess around with a ladder.

[@WaffleSmoof]

This channel brings so much joy to my life. I hope you are doing well

[@riggsvsoliver]

I remember seeing these awhile back and it’s just incredible how strong light is, when condensed to sizes so small you can barely even see it, if you could - I’ve always loved this channel because it also teaches the serious safety behind all the crazy stuff

[@another3997]

You can't see the light from this laser anyway, no matter how small or large the beam. The fact that diffuse light from the sun can blind you and set fire to things 93 million miles away just by using a simple, cheap lens, should give you an idea of what light can really do.

[@777gpower]

So his home owner’s insurance premiums have to double every video

[@MechaBorne]

My main takeaway from this is that blasters from Star Wars can be real. And that Stormtrooper helmets probably had welding goggle lenses installed haha. How many of these would you need to combine to make a Death Star?

[@satanhell_lord]

That would explain why their aim is so bad too

[@volvo245]

Militarized lasers to replace battle rifles or assault rifles would have to be pulsed lasers. They would be absolutely horrific devices capable of causing steam explosions if they hit soft tissue directly. Basically causing similar damage as hand grenades or blasting caps, large cratering wounds and full or partial amputation of limbs. Very few fictional depictions of them exist probably because the movie or tv show would have to be R rated.

[@juliavixen176]

The Death Star laser must be at least 2.24 x 10^32 joules to destroy a planet similar to Earth... the laser in this video can only output 2 x 10^3 joules per second. So... you would need approximately 100,000,000,000,000,000,000,000,000,000 of these lasers to deliver enough energy in one second to destroy the Earth.

[@MechaBorne]

@@juliavixen176 Dang, so it would need to be the size of a moon. George Lucas really did his homework lol

[@Ham549]

The blaster bolts only went around 40 mph Becky magnitudes below c.

[@angelsjoker8190]

You should do a test to see how much protection safety glasses actually bring. I guess, they are not there to make you stare into a laser but just to prevent the worst if there is some split second reflection from an object you use the laser on.

[@ConnorSinclairCavin]

Perhaps a fragment beam mirror? Could do tests based on duration, %reflected, and more

[@cewla3348]

Styropyro did it, unprotected lenses die instantly but protected lenses can have the laser pointed at em

[@delquandrecolter3477]

Reflector from [g=2]

[@antaresmc4407]

@@cewla3348 Styropyro's strongest laser is like an order of magnitude weaker and with orders of magnitude worse focus lol. I'd not trust pointing that laser at my eyes through a steel plate, let alone any glasses, they are for reflections...

[@reddragonflyxx657]

​@@antaresmc4407 Yeah, he literally showed it cutting through steel plate in this video (with the cutting attachment, the cleaner seems fine with steel so long as it doesn't dwell on one spot). It's like a waterjet/plasma cutter (or even a rotary tool), none of which you want to intentionally point at your PPE.

[@camcam-uw5mx]

I never find myself waiting or wondering when he'll upload but somehow never miss his videos and I am never let down.

[@than_us]

So, I don't need a welding machine, a grinder and a lot of other machines anymore, just a laser is enough?? 😯😯😯

[@KBird204]

Amazing content! I've been watching your stuff for years and I've gotta say, you've always been a source of inspiration for me to continue my STEM-related passions. Thank you so much for all you do 😁👏

[@cooler2938]

10:57 Patrick star "I thought he'd buy it"

[@x9x9x9x9x9]

Always love a late night upload. Thanks for being awesome as always. I have been bingeing safety third episodes lately so the timing was great! Oh the ink from the bill thing. That could be a problem. I wonder how hard it would be to print lets say the markings of a $10 on that bill...

[@hxhdfjifzirstc894]

I've done plenty of a different kind of laser welding, and this entire video gives me the Heebie Jeebies.

[@jacoblevinson8407]

2:44 TurboFlex metal

[@randomniss8676]

Hey Kevin while it’s still just the two of us I’d like to say I love your videos your a huge inspiration and I look forward to every upload

[@NavroZ10]

Pleasered dont get too inspired

[@selfproclaimednobody4614]

That's not creepy at all 🤔

[@randomniss8676]

@@selfproclaimednobody4614 😂😂 lmao

[@TheFrenchmanBehindYou]

11:07 Ah, I see. You're a man of culture as well.

[@Thisguyisscissors]

What do you mean

[@Glaceon_chai_chai450]

@@Thisguyisscissors anime

[@devlyn1816]

TOUHOU IS NOT ANIME FUTHJIIJIRUIOIEOEJEJEOEHEIEUEKWO

[@dan3a]

@@Glaceon_chai_chai450 bUt ToUhOu iSn'T aNiMe

[@proxlordz]

?

[@KombaGd]

I’m so disappointed, he never turned the laser intensity to 100%

[@lavvyvr]

0:55 rip emergency stop button

[@helinameinhard7133]

True

[@christianrhodes3616]

Impressive. Very nice. Let’s see Paul Allen’s laser chainsaw.

[@tk421dr]

about paul allen, i hope youre sitting, i got some bad news

[@Railfanner121]

Never thought we would go from simple sunlight to Super Advanced Laser Chainsaws. Wow!

[@ArchangelExile]

Dude just committed federal crime and posted it onto KZbin.

[@FrostedJr]

Why did I flinch at 4:40 when you pointed it at the camera.

[@Lightminator]

2:33 why does this sound like a commercial xD

[@gaaru7766]

I sometimes wish I hadn't watched every single backyard scientist video yet, so I can watch them for the first time again.

[@xx5949]

this definitely should be classified as automatic assault weapon

[@coreyswann8735]

Kevin, every time I see a notification that you have uploaded a video a smile breaks out across my face. Thank you for a guaranteed smile!

[@figbloppa7183]

1:07 would have been a perfect moment to put that noise from fnaf 1 when an animatronic appears in the door

[@wonderwhatchannel]

Always a treat to see the ways you bring wholesome chaos to your backyard

[@BarelyA1ive]

This man is frikkin legend

[@BarelyA1ive]

And one of his kind

[@ThisGuyHere17]

"this power has to be respected" "what about creating COUNTERFIT MONEY"

[@AnarithMoon]

I dunno if its a recurring joke on this channel but I love that the "Shake Hands With Danger" song exists outside of niche safety videos from the 70s now. It slaps too hard to be kept in the past!

[@alansmith4734]

4:01 I have another saying for your t-shirt collection. "Measure Once. Cuss Twice!"

[@unknownedleaf]

5:05 as someone who hasn’t seen the last video, i am extremely amazed and curious what the hell happened

[@PhilipBlank]

I used one of these lasers at work to clean cast iron before welding, it was surreal to say the least!

[@heddevh]

Loved the Bad Apple part at the end, I almost forgot about it!

[@exovay6468]

please i need full version

[@jimmysyar889]

Been waiting soooo long for someone to get a high powered fiber laser and screw around. Please do this more.

[@jesseslack2089]

Alright besides how awesome the laser is..I about piss my self laughing at 3:06 when "Shake Hands With Danger" was playing in the background...Rifftrax people know what I'm talking about!

[@kbrodie78]

That was one of the most gloriously dangerous and controlled chaotic videos I’ve ever witnessed. The erasing the ink on the currency was awesome. My jaw actually dropped. Great video!!

[@exnozgaming5657]

7:40 the coin cutting was soo damn smoooooth.

[@__Pigeon]

“Don’t worry this isn’t illegal, unless it is illegal” famous last words 10:45

[@SafetyLucas]

This is how he's going to pay off the expense of the laser gun 😂

[@dotquack1]

i like the random bad apple at the end lol