DECORATION LASERS | Stronger than you think...

[@bigclivedotcom]

A friend was trying to fix one of these before Christmas and was wiggling connections while the unit was open. One of the lasers activated while aiming at one of his eyes dazzling him, but with no significant discomfort. When the vision in that eye was still a bit blurry a couple of days later he went to an eyesight specialist and was told he had damaged his retina. The vision got slightly worse as a scar formed, and he will always have diminished vision in that eye. Your brain can work around the damage, but the full functionality of the eye will never return. I wonder how many people suffer laser induced eye damage every year.

[@mrdummy_nl]

I experienced that laser damage too. But it was not my fault. It happens at my school when one idiot friend thinks it's funny to use laserpointer at me (at long distance), i try move my head away fast as possible. No real loss in vision, but when i blink my eyes or look in sunglasses, i see sort of "smear" in one of my eye. If you don't focus on it, lucky no big problem most time. But it's visible there as sort of blurry line. Even in less than one second with laserpointer, the damage happened already. SO.... EVEN ITS SHORT, IT WILL ALREADY MAKE SOME DAMAGE IN EYE BEFORE YOU THINK FOR A SECOND! IT GOES VERY FAST! NEVER THINK IT'S FUNNY TO PLAY A BIT WITH SMALL LASERPOINTER!!!!!!!

[@MACTEP_CHOB]

@@mrdummy_nl That's why it's restricted by law in some places. Especially green ones.

[@draketungsten74]

This video totally reminded me of your disco light videos. Sorry about your friend's vision.

[@bigjd2k]

石尸丹丁丹廾彐丁囗 中仈丹仁片囗 Supposed to be!

[@tychlg]

Was swept by a holiday display while landing at O'Hare, no damage, but surprised at how bad it could be for a pilot.

[@ExaltedDuck]

The most important label on a laser is the one that says "Warning: Do not point laser in remaining eye." ,-)

[@KFPSplayer]

hahhahahha.

[@PantsYT]

A N N : O O P I T W R I G D N T O N

[@katheryn5598]

:’-(

[@reizinhodojogo3956]

"remaining"

[@HebaruSan]

"Do not stare into these lasers at close range" Words of wisdom in any context

[@7636kei]

When you stare into the laser, the laser will stare back into you(r eyes).

[@glarynth]

Do not stare into laser with remaining eye

[@pierreuntel1970]

@@glarynth Damn I'm going to say exactly that

[@MrHack4never]

Only exception would be laser eye surgery, but that's HOPEFULLY done in a very controlled manner

[@69A12SuperBee]

But, then again, it aids in “natural selection “ if you do. Carry on!😀

[@Indrijid]

Wish I could've shown this video to my managers at work. I work in retail, and they had set one of these up in the store along with the inflatable xmas decorations. But they had placed it on a raised platform in the middle of a main isle. It would laser you in the face every time you walked past it! I tried to complain about it, as it was in an area I had to walk past frequently, and hurt quite a bit even when you weren't looking directly at it. I'm surprised no customer had said anything. Or, if they did, management didn't listen.

[@toriless]

Yep, placement is important for any laser device.

[@schnizzyfizz7832]

The magic word to get management to change something is "liability". They could get sued (And rightfully so) if that laser hits a customer in the eye and damages their vision.

[@LarixusSnydes]

@@schnizzyfizz7832 Not only customers, employees are in danger as well.

[@madcat_UK]

Everytime I see a laser I can't help but think on an alternate accronym meaning for it that I was told many moons ago in school: LASER - Look At Source Erase Retina Fantastic video, many thanks for all your hard work in producing them all for us =)

[@denelson83]

XD!!! 🤣 Never heard that one before.

[@Zenodilodon]

Epic safety acronym, I'll have to use this in future video stuff.

[@Peter_S_]

I've been playing with lasers for 35 years and I've never heard that one! 😂😂😂!!

[@PantsYT]

I think "Look In Source and Erase Retina" or with the and replaced with a comma. That would be LASaER, but usually ands are not said in acronyms.

[@unknownhuman1000]

More like delete

[@jimstanley_49]

Also, be careful with cameras around these. There are photographers who learned this the expensive way while taking pictures of wedding receptions where disco lasers were in use. It may be a 1 in 100 chance, but dead pixels on an expensive camera sensor are no fun. The DJs probably trusted the labels on their ebexpresmazon specials.

[@buddyclem7328]

That sounds similar to the Everything's Family Tree General Dollar store!

[@qwertykeyboard5901]

an hp camera i have came with a defective pixel

[@Soulessdeeds]

lol when I was in the Army I got the chance to "act" as a gunner for a M1 Abrams during training. The unit was short handed for crew members so the company commander gave up his gunner for another crew. I was a mechanic for Bradleys, which is another type of tracked vehicle. Since they were short handed they asked me if I would fill in the gunners spot. Of course I said HELLS YES! lol. The turret traverse and gun elevation controls are nearly the same as the Bradleys so I kinda knew what I was doing as far as moving the turret around. But one thing I didn't realize was hitting a certain red button would send out a lazer for range finding. Something mechanics generally never mess with. And since I was still pretty new to the Army and my job back then I had no idea that the lazer was dangerous and I just liked getting a range pop up when I hit the button lol. So there I am having a blast moving the turret around and targeting other vehicles and getting the ranges on them. Finally the TC (a Capt) tells me not to target people with the range finder. The lazer it shoots can blind people. As I was lazing another guys helmet lmao! I was like: Yeah of course! Pshhh who would do that? As I quickly moved the turret sights away from people lol. I had a incredible time during that field problem. And being in the turret of a Abrams as it was hauling ass across open ground and just experiencing the inside of the turret as the crew works like a well oiled machine was something I will never forget. I gained a great deal of respect for tankers and scouts after getting to be in the turret. I also got to be a driver for a couple of days and damn its crazy how much power those turbine engines deliver to the Abrams. And they ride so smoothly across open terrain. The Abrams truly is a awesome piece of hardware.

[@M50A1]

I've been in an abrams at an airshow, you don't really see how massive they are untill you're standing next to one

[@linswad]

We don’t have to worry about them getting too cold here in Australia at Xmas. This year, we have to worry about whether they will melt at ambient temperatures.

[@Qsie]

They say Aussie christmas is fueled by Tim-Tams melting into plasma. Can you confirm this?

[@jupiter_ios]

lol

[@johncoops6897]

@@Qsie - Tim-Tams are stored in the freezer at all times. They only melt in the mouth. No Australian would waste Tim-Tams by exposing them to summer temperatures.

[@jdrissel]

The reason most of the daylight sensors are covered is that many Christmas displays are bright enough to disable each other...

[@KiwiClawDHA]

Didn't think of that, but now thinking. LOL is all I can say to that. XD

[@toriless]

Many just use built-in timers, usually 6 hours. My Class III units come that way.

[@crimsonhalo13]

I'm surprised the Star Shower still ships with such a ridiculously short cord despite all the design changes over the years. They haven't changed the laser block much in terms of appearance, however it DEFINITELY sounds like they nerfed the diodes. The ones I took apart in 2016 were powerful enough to burn things.

[@toriless]

The one I get usually have something like 15 feet. I have many from Suny.

[@18436Melissa]

Wait... Were the diodes 200+ mW? Cause that's the power required to burn.

[@kilobytecache6192]

That Patron screen is such eye candy. Well done on this, I never realized how powerful these things were, some of my family members use multiple of these, it must be quite scary actually

[@MAGGOT_VOMIT]

_I saw the Thumbnail and thought Lauri and Anni from "Beyond the Press" were smashing some Lasers. xD_

[@johngreco7171]

this laser is very dangerous, and ve must deal with it

[@_BangDroid_]

Is that their names? I always heard Laurel and Yanny

[@MatthiasLag]

@@_BangDroid_ yes, they are Finnish and Lauri and Anni are their names, correctly spelled

[@_BangDroid_]

woosh

[@Peter_S_]

@@_BangDroid_ Woosh is only appropriate after you succeed in making a joke that went over somebody's head. You're still searching for that success.

[@AluminumOxide]

Just the perfect video full of lazers to celebrate the new year! Hope you had a wonderful Christmas!

[@KingJellyfishII]

I'm sorry but it's my pet peeve: laser is an acronym so you can't americanise it to lazer. It should always be laser. Sorry for being picky.

[@communitycollegegenius9684]

...and Jesus is LITERALLY a scarecrow designed by Rome to keep the ignorant in fear. He never existed. F. Christmas. Have a wonderful holiday! obviously my pet peeve :o)

[@brainiac75]

Thanks! A wonderful Christmas and New Year too. Happy New Year and Decade :D

[@johngreco7171]

@@KingJellyfishII Z's make words cooler though.

[@KingJellyfishII]

@@johngreco7171 true that

[@allenellisdewitt]

Honestly shocking, thank you!

[@BigIggy]

Happy New year, I can't wait for more videos!

[@brainiac75]

Happy New Year - some great videos planned for 2020 and the next decade ;)

[@ryanmalin]

i had one of these and I would hang out around it. Im glad I saw this video. Thanks Braniac!

[@FargothPL]

That stronger green laser probably has second light band around 808nm. I can bet that 808nm light constitutes around 40-50% of total power.

[@brainiac75]

Good point,. I need to check if they emit IR too, like I did with laser pointers (kzbin.info/www/bejne/n4OUfKhrmdOVfpo). They certainly can't be Class 2 lasers if they emit invisible infrared. Class 2 lasers are only allowed to emit visible light. Happy New Year and Decade :D

[@fuzzybobbles]

I recently bought a RGB dmx laser show from China. £50 delivered (UK dollars). It acually has a 100mw green dpss laser, 200mw blue and 300 mw red. Same dichroic mirror system for mixing the beams, then two stepper motors with mirrors for moving the beam around. It's awesome for beam affects and also does basic projected images as well. Does sound to light and dmx control with 9 channels. Maybe you can do a review of one?

[@brainiac75]

Sounds like a nice setup for £50. I am - and have always been - very fascinated by show lasers. How they manipulate light and mix the beams using dichroic mirrors that are only transparent to some colors and reflects others. Wicked Lasers have actually send me some. I test the LaserCube in this video: kzbin.info/www/bejne/nYmlnHZ9qrlqoNE and take it apart in this one: kzbin.info/www/bejne/eJimgKh8jtqinq8 - where a true 2 watt show laser also joins the party :) Happy New Year and Decade!

[@AllLoudNation365]

I like both the slow and fast moving lasers at the same time. Looks very nice

[@-ZH]

Wait a minute, is this styropyro with that scp music

[@swordscar6278]

꧁Lzh 1703꧂ well now it is

[@joetuktyyuktuk8635]

Channels like this satisfy my need to disassemble random things around the house, out of curiosity.

[@mr.mickles]

How many of these would I need to build a Death Star? Asking for a friend.

[@Gwynbleiddsanity]

ask styropyro man

[@windrun5p430]

Mr. Mickles you would need trillions

[@asmodeusasteroth7137]

Sixty two

[@toriless]

a billion

[@Sitarow]

Cool patterns. Love this!

[@over00lordunknown12]

Wow. I didn’t realize just how simple these laser projectors are, I thought the mechanical movement would be much more complicated then spinning a refraction grading. Also, one of mine says on the box that if you don’t see the green laser initially, give it a few minutes, and I didn’t know it was because it was heating it up. lol

[@vijaytgeorge]

Thanks for the New Year's gift Brainiac! Have a great 2020 ahead!!

[@brainiac75]

You're welcome. Happy New Year and Decade :D

[@speelmeneer6404]

Hahahaha “great” 2020... That comment didn’t age well

[@etprecisionmachine2379]

This was an interesting video but how about measuring one of the brightest spots at some distance, 1 meter for example, instead of being right against the window of the device? The spots of light spread rapidly once emitted from the thing and that is what an eye would focus on. Also, could you put a pupil the same size as the one in a human eye in front of your laser power meter and then measure the power right against the device? I'm pretty sure that the power measured will be much less than what you measured. It would be quite interesting to know what the actual exposure is rather than the aggregate. To mimic as close as possible a human eye seeing the laser light output seems to me would show best what the risk of viewing these devices is. Eric

[@meetverma4812]

Happy new year bro!!!!!!🥳

[@brainiac75]

Happy New Year and Decade :D

[@felixar90]

Lasers gotta be the only thing that are routinely more powerful than advertised.

[@marialiyubman]

How do you not have more subscribers??? I just discovered your channel today and I’m hooked!

[@TheBasedShark]

I was flying into Chicago O'Hare after thanksgiving and you can see a bunch of these from the air flying over the suburbs.

[@UndercoverDog]

When I first found this channel, I thought its one of those crappy clickbaity Russian experiment channels, but no, I found an insane science channel Greetings from Germany!

[@charliedulol]

proper disassembly pleases me so much. i love it!

[@stanstevey2785]

The more videos I see on lasers the more I think there should be some serious restrictions on lasers. Forget gun control, lasers are way more terrifying.

[@stevodevo9416]

11:30 I like how, even though it's intended to be a simple holiday decoration, the music makes it seem like it's the most dangerous thing to the planet, like it'll make it explode. (Well, yes, it can make your retinas metaphorically explode, at close range) No disrespect, these videos are awesome! Just lol'd at the thought

[@Smitty_Werbluntjaegermanjensen]

The prism looks cool

[@BOLL7708]

Just like with the SteamVR base stations that sweep laser fans across a room the clarification comes from the actual output of the device, not what is actually active inside, you need to consider the full optical path. At least that's what I've read from the makers of that hardware 😋

[@AshlynnTheFennec]

i am glad to see you posting vids again, really did miss seeing your videos :)

[@TheDutyPaid]

10:27 could not help myself and I stared straight into the lasers.

[@deltactarchives1328]

Have you tried making a particle detector? (Cloud chamber) You have quite a lot of radioactive elements at your disposal and a particle detector seems like the best toy and best next video idea. I would really like to see a uranium isotope inside a particle detector chamber, it would look amazing, a sprinkle of low-power lasers with it would be great too! IIIa grade (5 - 50 mW) preferably!

[@Gabito04]

Ooooh, shiny!

[@mohamedadam5215]

Happy New Year Awesome Videos👍👌🏻🎊🎉

[@McMasterProGenius]

You are the first :)

[@mohamedadam5215]

McMasterPro Genius yes i am 😂😂 Thank You...😂😂😱

[@McMasterProGenius]

@@mohamedadam5215 we are so early lol

[@brainiac75]

Thanks! Happy New Year and Decade :D

[@MACTEP_CHOB]

I had a laser in my dream, woke up and saw notification about this vid. O_o

[@Bizarius1]

That LAst one was a BEAST. Have a good day!

[@toriless]

I have stronger units. I would NEVER open one.

[@Bizarius1]

@@toriless That s great!

[@grahambloodworth4770]

Back in the mid 1970's a UK company called Anchor Supplys were disposing of British Army gear, got a nice optical scope from a Swingfire Anti Tank missile system. The MOD visited because they were selling Laser rangefinders from Tanks, powered by 48v with a range of over 2 miles. Withdrawn from sale.

[@MysterP]

Sir the shooting star you had, there is a variable resistor, I found 3 for 95% off and had to have them, cranking that up about half a turn, melts tape, lights matches non blacked and even white receipt paper

[@Network126]

Wow!

[@KiwiClawDHA]

Christmas decor going pyro ....

[@appletree8441]

My neighbor had three of these this past Christmas. Well....he did. He now has three broken one to throw away. Damn things were shining into my kids room all night

[@Network126]

Cool story bro.

[@legendy.9822]

13:37 length video... perfect

[@iambadatsomefunnies5572]

Leet 🤣

[@jorge_al]

I love the little bug on 8:48

[@Freizeitflugsphaere]

Thanks for the table at the end😃

[@zippyit]

12:07 you missed the perfect opportunity to say do not judge a laser by its color

[@CharlieO_]

Happy New Year!! Great video! You are teaching us a lot, we are very lucky to have you!

[@Ztertis]

lol! my neightbour here in sweden had one this christmas and it was displaying its lights on my apartment building, it was on the short side that is flat with only about 2 windows and i thought right away that it would annoy those people having those 2 windows, never thought about the strength tho! However it looks great in the dark! Great video mate! Happy new year from Sweden. "Edit": 80 mW HOLY SHIT!

[@adrianbergvall5947]

Jula har dem på rea nu 149 kr, ska köpa en och testa.

[@abadiabadi2251]

I am so glad that I found your channel, I subscribed immediately. You are great and what you present and how to present it , are amazing . Thank you for your efforts , and thank you once more, for making our brains think, wonder and enjoy your fabulous scientific presentations and explanations .

[@ejonesss]

i like the music used in this video much better as it does not have the clicks that can be mistaken for expansion ticks you know the clicks and pops as materials heat and cool. fortunately it is still summer weather where i am and so i am not having to use the heat but the clicks are deceptive and took me a while to figure it is the music used in your video about lasers being cold

[@adnanmlivo5885]

Happy New Year!

[@kickinbackinOC]

Interesting! And a little scary..

[@equinoxonroblox]

His hi is iconic at this point

[@fireworkstarter]

its cool in the final shot that the only point where you cant see the laser's is on the goggles (because it gets absorbed) but still a cool effect

[@KiwiClawDHA]

That's one thing I hate about wanting to working with lasers. Many YT videos say that. Why work with something that you won't be able to see.

[@fireworkstarter]

@@KiwiClawDHA at a certain power youll still be able to see the beam but you just need protection as to not destroy your eyes instantly. Look at styropyro on youtube. He does some crazy stuff with lasers

[@KiwiClawDHA]

@@fireworkstarter I'll look into it. I've observed that the protection blocks out the wavelength that is the same of the visible light emitted by the laser.

[@AcidBeast]

Thanks for this vid. Tbh I expected this to be boring but a) it turned out to be very interesting and b) I learned several new things.

[@aarongreenfield9038]

I was wondering if you could revisit these Christmas lasers with the spectrometer.

[@Jolgeable]

I just keep waiting, at the beginning of the video, the triangle with the video theme to be highlighted in the channel logo. XD

[@brainiac75]

Hehe. Let me guess: The more triangles, the better? Happy New Year and Decade :D

[@zqzj]

Thank you for the super informative video. Going to buy me some cheap high power lasers!

[@CTimmerman]

As those are pointed at buildings, the stickers must block room lights visible through the windows, other decorations, and reflected laser light. Daylight is strong enough to get through.

[@SHowe22]

the audio turns to ASMR when he's taking the lasers apaprt

[@ormendk7197]

Dav Brian, godt nytår

[@JohnnieHougaardNielsen]

I wonder if the diffraction grating splitting the beams into many weaker sub beams mean that the lasers can be rated based on how dangerous it would be to look into one of the beams, even assuming a defective motor. Of course, disassembling and staring into the lasers is an extremely bad idea. OTOH, as a child I was able to stare in to the high sun on a clear summer day, for several minutes, without my eyes suffering the commonly warned damage :-)

[@Cenentury0941]

Isn't the laser rating supposed to be regarding the laser used and not what happens to the beam before it exits the device?

[@JohnnieHougaardNielsen]

@@Cenentury0941 - I'm far from having expertise, but what I see in text about classification is AEL (Acceptable Emission Limit), with a lot of wording implying measurement outside of the box. I'd say that this makes sense if a laser emitting UV can be "downgraded" by having a filter blocking this. A comparison could be precautions around substances dangerous in high concentration, being safe when suitably diluted, even if an enterprising user could take steps to up the concentration to a dangerous level.

[@charleshines6155]

The one reason I don't use these is that I live near an airport. I don't want to get into trouble if one of those beams strikes a plane and blinds a pilot. Because of the way the run way is, I get a lot of planes flying over my house. It can get annoying at time trying to talk on a phone or even to someone in the same room at times. They are mostly Cessnas and similar planes and very rarely anything large. They can be just loud enough flying over that I find myself having to pause in conversations. Some of them actually sound like they might be flying too low. It would be interesting watch one of those ones that sound as if they are way too low and see if it is merely just loud. If it is too low, I would want to catch a video for the FAA to teach the S.O.B. a lesson!!

[@doubledarefan]

Replace the green lasers with pink (in one unit) and lavender (in another 1 or 2) for some Valentine's Day craziness. Then all green for St. Patrick's Day!

[@Atetus94]

Green killer, wow!

[@Blazenclipz6986]

slow because you understand how it moves better right i love it

[@aarontrupiano9328]

i have one of these. knew it seemed a bit bright without the diffraction for a 1 mw laser

[@AThreeDogNight]

Nice video, Happy 2020.

[@acehighdan]

I would think that "Do not stare into lasers at any range" would be better advise than "do not stare into lasers at close range" however i could be wrong, i know basically nothing about lasers.

[@realvanman1]

I wonder what the power of any one single beam is, after the diffraction grating. Placing the power meter at point blank range it is reading several of them at a time... Would need to disable the motor to get a good reading.

[@loganiushere]

Try using the most powerful one with both lasers on to light a match.

[@nasafan4943]

Lasers instead of fireworks...I like that idea to celebrate!

[@DisturbedVette]

That reminds me, I once lit a firework with a 1W 445nm.

[@trunkbangking]

I once lit a firework with a 5mw laser

[@brainiac75]

Thanks! I would love to make a video about fireworks and their chemistry/physics, but it will likely not fit well with the terms of service here... :( Happy New Year and Decade ;)

[@brianperkins6121]

use care you don't illuminate any aircraft overhead in general don't allow any laser to operate pointed up into the sky

[@BurnabyAlex]

I suspect the numbers are based on the 7mm aperture measured on the final device.

[@sebbes333]

*@Brainiac75* Can you take a measurement of ONE of the diffracted beams? I'm guessing that any single diffracted beam is below 1 mili volt.

[@briankerr4512]

I have an old lazer pointer which has a focus on it and cost $ 80 dollars back in the day.

[@RelakS__]

Lasers for show: Let's make them very strong. Lasers for measuring device up to 120m: Just put some laser in it, no matter what -> Can't measure more than 20m in daylight (pointed to a white surface what was in shadow of course)

[@ahawkuafie]

So what I want to know is how is this safe for people to put outside where people where be driving and walking by? What happens if the direction the lasers are pointing changes and starts pointing towards a road or towards a place where people could accidentally look directly into them if they're driving or walking and they're not expecting to see these lasers pointing towards them? Would it damage their eyes or vision?

[@deafmusician2]

Things I didn't realize I wanted to know about till now

[@m.jensen467]

Har desværre kun lige tid til og skrive, men skal nok se din video i morgen. Godt nytår 🙂

[@mhuffman1000]

Well done. I learned something.

[@fermitupoupon1754]

The other thing to be very aware of, if you buy lasers from a store that doesn't specialise in them. The goggles you are getting probably aren't matched with that laser. My friend has a 60W CO2 laser at his job to burn patterns into wood. The goggles that came with it from the Chinese supplier couldn't stop a TV remote from working.

[@blind1337nedm]

why is there no retching and puking sounds to go with the LA beast music?

[@jTempVids]

Interesting. I've always been concerned about the output of these home laser show devices. The question remains unanswered. Is there any danger in having one pointed at your house and walking thru the pattern. What power reading do you get at a distance?

[@samuelfellows6923]

jTempVids - and for those who don’t cover their windows at night; the effects of the beam through the glass into the room, the visiting idiot that looks directly at it through the window and... gets blinded 🤭😨😵😬⚠️

[@XXCoder]

From what I learned from one guy, Green is doubled from IR, so i wonder what is IR leakage on those devices.

[@KiwiClawDHA]

Thanks for that. I've always hated the cheap RG laser shows, so I look at the more nicer show RGB lasers to display on my house. That, till I wandered if walking out the front door and the mini beams would give anyone blindness.

[@toriless]

Yeah, I have one unit that is very bright that is RGB. Probably on the high end of Class III. Were you using GOBO style or moving dots. Some of the GOBO one are still not that bright.

[@KiwiClawDHA]

@@toriless lol no. Well I associate gobo with moving heads. If Id had another. It go great with my mini kinta. Though I'm taking about my mini kinta. Ive had it in small rooms and a few did complain if the refracted light hit them.

[@milokeskinen1681]

Make a quantum lock experiement with one of your monster magnets please

[@gilbertlast8221]

i like the slow one

[@andreasthedevil9314]

Godt nytår

[@MCRuCr]

Buying discounted products after christmas ... genius :)

[@toriless]

Usually half but the selection is less. They always have those crappy Star Showers lying around though. I have found October to be a good time too.

[@donaldviszneki8251]

I would like to see a characterization of the grating used. It does not seem to behave similarly with DGs I am familiar with.

[@AdamChristensen]

Glædelig jul og godt nytår!

[@Grocel512]

I think the ratings on these lasers are tested/specified for the fully assembled devices under indented conditions. They have warning stickers and probably also safety instructions in their manuals for a reason. So I think even with these high measured values they are still as save as rated when they are not being abused. If the laser emitters had the power of just 1 mW in total (before filtering) the effect would probably just not work. Still you should keep it out of range for kits or pets, though. That is just common sense for any laser in general.

[@GQuack]

happy new year wooooooo

[@brainiac75]

Happy New Year and Decade :D

[@GQuack]

@@brainiac75 Sorry for the immature comment, I was excited. I enjoyed the video a ton and here's to even better ones in 2020!

[@bragapedro]

0:55 the best way to buy christmas decorations is to buy them a year early

[@propofokgov]

I need to send you the brand laser lights I've been using, mostly out of curiosity! I have 20 ShowLights red/green moving lasers and I used to have one with a blue laser as well! Thanks for the great video, BTW.

[@toriless]

Be careful with windows, a deflected blue laser can travel a long way. I was setting one up and the whole neighborhood had dots until I adjusted it.

[@brunokerbaul3826]

Light depend on the waves reflect Magnetic isn't really different, and react also with specific geometrical architectures Take a horse magnet, strength is particularly important between the parallel arms Wish you a good day Your test equipment is really interesting will probably take the same Did you ever try to found sound wave corresponding between materials and light ?