The Horrors of UV radiation
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- čas přidán 16. 06. 2024
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For people asking me questions if I knew the security guard, I did not. This happened about 10 years before I joined company.
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Scam
no
@@Jan12700 Like 90% of CZcams sponsors.
no
you are a phony
Never understood why people want to use tanning beds, I will never lay down in the cancer bed
On this night, I pray to the Engagement God of CZcams by leaving a comment and bumping your Engagement.
All seriousness though, great video. I appreciate the story, and warnings against UV Exposure.
Yeah, those tanning beds are really dangerous since the people who use them go there multiple times.
Going Once may be fine, but getting ur skin from white to brow/black is just stupid and dangerous.
I'll take the vitamin D synthesis and nitric oxide synthesis tho.
Probably because they want to get tanned Sherlock
@@HELLF1RE9 I love it when people think they're pointing out something everyone else failed to understand. You're behind the curve, but the spirit's there 😂
As an introvert staying inside a lot, I see this as an absolute win
Me too! 👍🤣
Go outside mane life is too short to spend it inside on the computer
gotta get those cancer numbers up with packaged/processed food for your cancermaxxing journey
Incel
That also has it's own set of risks.
I was a 1980s goth. I’ve been avoiding sunlight for 40 years.
can i see your veins through your translucent skin? i'm asking for a friend. (he's a vampire)
"Goth" is a 90's word, so...
In the 1980's you either avoid the sun entirely or fry their skin as much as possible lol
Comparing to other people of your cronage, can you notice differences about your skin?
@@TotalDec LOL no.
Ow maaaan, so you are telling me I won't gain any superpowers?
Your super power will be to grow cells at an uncontrolled rate
@@darkscienceyt xD
@@darkscienceyt cell man
😂😂😂@@darkscienceyt
What happened to your last video on posturing?
Looking forward to “The Dark Science of Wave Particle Duality”
Lol
Dark science of thermodynamics😱
@@thurbine2411 The horror of not being able to harnest infinite energy
How to skin the schrodinger cat
You should always consider getting any weird moles checked. Melanoma is a very curable cancer if you catch it early. Though it is rare you should still keep a bit of an eye out for any weird looking lesions on your skin.
This. Some signs that a mole might be melanoma are if it's assymetric, unusually shaped or if it growing.
Skin cancer (aside from just Melanoma) is the most common cancer in the US and melanoma causes the majority of deaths…mainly because it’s so often overlooked. Quite literally seen and disregarded as a mole, Get that stuff checked out!!
What if you have a "mole" in the white part of your eye
@@lateralrook They aren't supposed to be there, so see a doctor, a.s.a.p?
Yes, and you should ESPECIALLY do that if you had made it your habit to doze unter a UV light for months.
THE SUN IS A DEADLY LASER
not anymore, there's a blanket~
@@user-gr5vr8ue1i if it's still causing cancer, then it's still deadly... maybe not immediate, but still deadly xd
Hey I got that reference!
No no ,no no!
@@user-gr5vr8ue1i not anymore there are holes in that blanket.
Thank god, someone finally actually gave a proper explanation of how UV is damaging despite not being ionizing.
Thank you so much, this was really informative, and scratched an itch I've had for years now!
Thanks!
UV, and even visible light, is ionizing(!!!) The reduction potential to dissociate water is 1.6 eV, corresponding to a wavelength of 775 nm which is at the edge of Near IR. Thymine dimers just happen to be alot more effective at mutation than free radicals in a cell because said free radicals are rapidly quenched by superxode dismutase, peroxide dismutase, etc, whereas thymine dimers are a direct action on the DNA.
@@tetrabromobisphenolDo you have a reference for that actually working? I'm sure the dissociation energy corresponds to that wavelength but that doesn't mean it will dissociate the water. Chemistry and physics is a lot more than just thermodynamics.
Also the label "ionizing radiation" is a bit misleading, there's plenty of unstable compounds that can react with "non ionizing" or visible light.
Doesn't help that some UV wavelengths are just soft x-rays.
Sitting under a UV light for warmth gives 2001 Lia radiological accident vibes.
Three men looking for firewood in snow covered forest in Georgia stumble across 2 metal canister radiating heat. They proceeded to use them as a heat source and getting radiation poisoning because they were radioisotope thermoelectric generator.
Pretty brutal story with me hearing about it from Kyle Hill and Plainly Difficult
that’s fascinating and horrifying!
Poor dudes :(
Yeah. I know the accident. The poor guys must stayed at hospital for 2 years to heal their wounds. One of them never get back home. As fas as the heater there was about 1 minute shifts for workers who get it out of forest. Another 300 heaters were later found all over Georgia !!
That almost sounds impossible after the Goiana tragedy in the 80s. I figured they would keep close track of any nuclear material. Edit: ah, *that* Georgia.
This was a great video, nicely written with just the perfect amount of prerequisite information. However, I feel like that security guard was failed, even despite is ineptitude. At one time, companies would have proper training and a guard would be part of staff, and not some kind of contractor unknown to the rest of a lab. They might even have proper training and healthcare afterward.
@@veccio The more I look for signs of it, the more I see that working people everywhere are being abused in this system.
“Decades of poor diet”
Side eyes the ice cream sandwich in hand👀
🍺 for me🍻
Eat it you fking coward
🧑🏿 for me
@@billynomates920get help
As a physics student this just felt like a photo-electric effect recap
more or less
Damn they really did that guard dirty. It's not like he knew or did it on purpose but better to cut all ties asap than to later be forced to pay settlements.
He broke rules and disregarded a warning sign.
yep, this is what I was told
@@shinola228 The institute also broke the rules because such a system is inherently unsafe without interlocks and keyed switches and proper training was not carried out. Any VALID training program requires testing to ensure that the employee understood all of the material. If an HVAC tech were to go in there to fix something and accidentally turn on the UV source he could have gone blind or gotten cancer too. It's incredibly stupid and unethical to put all of the blame on the guard. The family of the guard would have an easy time in court suing over this, the institute was highly negligent.
Sleeping on the job alone is likely enough reason to fire a security guard, though. Giving himself a lethal dose of radiation over several weeks of sleeping on the job routinely was icing on the cake.
Yeah, they could've explained the dangers to him at least. Melanoma is treatable if caught early. I wonder if he'd still be alive if they had told him to look out for it in the coming months/years.
"He's exposed himself to lethal radiation! Quick, fire him for sleeping on the job!"
Only WE can expose you to lethal radiation, serf!
That is horrifying to think about. Taking a short nap in a warm room turning into getting cancer.
There needed to be an interlock switch system. Also a bright red flashing warning light. Seriously. This should have been the Safety Officers responsibility in the first place.
He did it for several weeks though smh
They fired him purely because they didn’t want to pay for his inevitable cancer treatment or provide his family any compensation. He wasn’t trained properly or warned of the dangers, meaning the employer was at fault. He could’ve sued them, so I’m sure they failed to mention the likely outcome of all that exposure before they quickly shoved him out the door.
File under: psychopathic management stories.
@@Pushing_Pixels . That room and UV lighting had no warning or safety interlocks. Owner/operator are absolutely guilty of safety dereliction.
Imagine being stupid enough, to not read the warning, and stay in a place where you have a light of a strange color that produces heat 🤔
my brain is so cronically broken that when i saw the electron move i unironically though "hehe, radiation makes electron angry"
such a great comment
No no ur brain is perfect
It's that modern day humor, and I love it. I'll have to explain heat to people like that lol
Me thinks happy not angry but either way
I thought this channel was called "Dark" science haha!! UV got to be kidding me!!!
great work as always :)
I am a welder, UV is always a risk. Most other welders are too careless
Co-worker of mine said arc eye feels like getting sand in your eye, but it doesnt go away.
UV changes oxygen into ozone which blocks most of the UV rays. Which means man-made UV light also have the same effect on oxygen in the area where it's being used. So whenever i use my improvised handheld UV light on items or surfaces in my room, i'd also turn the exhaust fan on to remove the ozone being produced which had a particular burnt smell
What an awesome video to watch while I got pretty badly sunburned over the weekend.
I got a pretty bad sunburn a week ago (purely due to my own forgetfulness to wear sunscreen), and my skin is still partially red and has been peeling a bit for the past couple days. Watching this video did not make me feel good at all
Never go in the sun ever. Got it!
Back during the WOD, when Psilocybe Fanaticus used to advertise in High Times, he fruited a batch of mushrooms under UV light and damaged the genome that developed from the spores he harvested. Even generations later, albino mushrooms and mutants would develop from spores harvested from line that were fruited under UV light. He had to go back to his collection and start a new line that had never been exposed to UV in order to restabilize the genetics.
Pretty dubious claim but fungus is pretty cool.
Did he write a trip report on erowid too
I first learned about UV-C when watching BigClive on CZcams. He was talking about sanitation lights during the pandemic. There was this accident where UV-C tubes were being marketed as black lights. They realized there was something off when the tubes had a blue-green light rather than a violet light, but they thought it looked cool. The came down with arc flash burns on the corneas. They recovered, but it's really unpleasant.
I'm not sure why the security guard didn't have that problem. Was he wearing eyeglasses with glass lenses? The security guard should have sued because it was the lab's responsibility to tell him.
Apparently UV coatings on plastic lenses protect from UV C as well. It’s pretty uncommon to have uncoated lenses nowadays.
As for responsibility, he ignored the sign warning people to stay out with the UV light on.
Well the guard basically ignored the safety warning right on the door, so there were no grounds for him to sue on.
It wouldn't surprise me if the guard lied to avoid punishment or simply forgot. Of course, the former guard would say he did teach him when in court.
He ignored warning signs and turned on specialized lab equipment (that look nothing like ordinary light bulbs)for hours everyday for months. It's hard to imagine someone not knowing what artificial UV glow looks like. If anything, he deserves a Darwin Award.
that story at the end is absolutely horrifying to listen to. may he rest in peace, someone shoulda really told the guy before he started how dangerous UV light is. he also could've read the sign. just a tragedy all around the board.
Yes. It really wasn't his fault 😔
right and I have a feeling the sign wasn't that noticeable how can someone walk up and down a corridor and never once notice the warning sign saying not to turn the UV light on :/ or maybe he didn't understand the warning
a room like that needs safety by design. A lightswitch with a sign is not safety by design. What if the guy wasn't literate or didn't speak the language the sign was written in? A light like that needs to have its switch under lock and key. Insanely dangerous all around. I hope his family sued, and won. Because that place was totally negligent.
seems to me like the old guard is at fault for not telling the guy.
Hello! My dermatologist, and several other places I've read about skin care, says that UV skin protection is to be used not only "when it is sunny, or when you are outside in the sun". It must be applied everyday, even on cloudy/cast days because UV light/rays are not the same as visible light rays.
This one hits close to me as I’ve been working under the sun for about 3 years now. Thank you
As long as you are wearing clothes and a hat maybe sun cream you’ll be fine this video is just telling you what could happen not would humans have evolved outside. You’ll be fine
I'm 65 and recently had a couple of skin cancers cut out . I told the doc it had been 40 years since I had significant sun exposure and she said it's common for it to take that long. Point being, even if you start covering up now you'll want to be on the lookout for cancer for the rest of your life.
@@Kinguk22 we did evolve in nature yes but don't forget that people in the past didn't have to care about dying of cancer, they died so early it wasn't a problem and the next generation had already been born. You and I do have to worry bercause we live much longer.
Did the guard not notice he was essentially getting sunburnt every night?
Yet UV light is vital to our cellular processes, particularly bone and skin health. It’s a deadly dance we walk every day.
I blame evolution
Exactly. So like, where is the balance, y'know?
@@darkscienceytI mean, evolution is just “survival of the…eh, good enough”
Same goes for almost all other stuff we consume, like salt for example
@@Swenthorianthe balance is always ”a little, not too much".
Ignoring the literal warning sign for weeks to sleep under a carcinogenic light is WILD. I've known people who just love sunning and I've never understood it. Just feels like my skin is burning. Must be some reason people like it
Always wear sunscreen/sunblock! ☀️
I am infertile from eating scented candles. The
wut
The what? THE WHAT??
You! You're the guy who rates candles on your community tab!
My hero
The "the" is beautiful
I am a light bulb collector and my 2 favorite vintage bulbs are mercury vapor and fluorescent. I have several arc tubes out of both mercury vapor and metal halide lamps that the outer bulbs had been broken away on. These will still start and operate in this state, and since the quartz the arc tubes are made from (because it can handle the super high temperatures of the arc when in operation that can easily melt even Pyrex glass) this material is transparent to the full UV spectrum, which is absorbed by glass, hence these lamps having an outer glass bulb, and will cause eye irritation and damage, and skin burns if the outer glass bulb is broken. In rare cases, broken High Pressure Sodium lamps can do the same, as they contain mercury that emits UV and the ceramic arc tube is also at least partially transparent to UV. Halogen incandescent lamps are quartz and can as well, though a white hot tungsten filament emits far less UV than a mercury arc. These lamps can be a serious hazard if broken but still working! Also, clear fluorescent germicidal/ozone lamps are just as dangerous even though much dimmer than high intensity mercury and metal halide lamps missing the outer bulbs. I have these in a few sizes in my collection, and know they are dangerous as well! I used a 15 watt 18 inch diameter one I put inside of a clear acrylic tube I had cut to length that fits over the 1inch diameter T-8 germicidal fluorescent lamp to show the mercury arc that is in any fluorescent lamp but blocked from view by the phosphor to show what goes on inside these lamps. In just a few days of this demonstration, the short wave UV from this lamp cracked snd crazed badly! While it filtered out the UV making looking at it and being near it safe, the acrylic tube was destroyed. So UV is VERY nasty!! Sun lamps are either mercury vapor or fluorescent lamps with glass bulbs made of “Corex-D” glass, which is a mix of glass and quartz that can have various ratios of the 2 to provide the exact amount of a certain wavelength of UV, filtering out the more dangerous shorter wavelengths. Sperti made some portable sun lamps in the 1970’s that used a quartz mercury vapor arc tube and were causing severe UV burns because the entire spectrum was released! They were banned. Older ones used a corex-D low pressure arc tube tgat blocked the most dangerous wavelengths, much safer, but still capable of of causing UV burns. So while I collect these lamps, I am VERY aware of the dangers! Cheers!
Mercury vapor rectifiers are one of my favourite types of vintage technology!
this channel is so underrated
The best protection against UV lights is clothing, not sun screen!
New fear unlocked
Always a good day when Dark Science uploads!
One note, as someone who is very light sensitive. IF you wear sunglasses, you not only need UV and blue absorbing lenses, but you need face hugging glasses that leave little space between your face and the glasses. Your pupils open more when the sunglasses are worn, and the shorter wavelengths can diffract into any open gaps. Multiple studies have shown since the 1970's that wearing standard sunglasses expose the retinas to MORE short wave light than not wearing the sun glasses.
Wish people were old enough to notice how much UV light is now getting through Earth's broken electro magnetic field
I've always preferred the Great Indoors. I'm told that I look young for my age, so that's a nice bonus.
How the hell did the Security Guard not realize the "UV Hazard" sign in the door FOR SEVERAL WEEKS.
I've been thinking about this for a really long time thank you so much for this video!
I'm really liking these videos. Keep up the good work!
Any fellow resin hobbyists? Pick your poison; toxic fumes or cancer-causing light.
I'm 47 years old male, and due to my hobby and work with computers, and generally reclusive way of life, I don't go out much during all my life. Now at this age, everyone I know who are the same age as me, look like they are 60 years old, they have wrinkly skin, while I have smooth and youthful skin, and my face looks still pretty much the same as when I was in my 30's. They've drank alcohol while I never did, and sunbathed, tanned, been in the sun a lot in general. The difference is significant and I can see it very well now. I was always worried about the effect on the sun as my skin burns easily anyway, so I always avoided it, and good that I did.
Onward to learning how to help my body fight with cancer cells. Thanks for the video, you are truthly amazing!
Thanks!
CZcams is a lonely place when you're not uploading. So pumped for this!
That story at the end was crazy.
So we have to give up burgers & beer, wear sunscreen all day like a slimy frog, and stay out of direct sunlight for more than 15 minutes.
Sounds quite doable.
Fascinating! Love these videos. Particularly, how these things actually work.
Watching this as the back of my neck is peeling from a skin burn
Doctor: I'm sorry, but there's nothing we can do. The exposure was too severe.
I love getting my nails done but now I worry about the UV exposure :(
But we need it for vit D production, and to avoid depression.
Also human eye can see UV light (as faint blue-looking color), but most of it doesn't make it through the eye lens.
just like everything else we deal with, you shouldn't over do it either way (100% avoiding it, or over exposure).
so i made a UV glue hardner that i call the melanoma box because the inside is bright purple when its on
I love the way you explain things! Makes it easy to understand and remember. It is very interesting explaining how cancer works, do you plan on covering cancer as a ehole subject? Like, how are some compunds carcinogenic(such as Benzene) Why are some foods carcinogenic?
Wow, after watching the beginning of this video I was going to reply "I'm glad I only work 3rd shift, so I have almost no Sun-related UV exposure." Then I watched the ending. Uh, I'm a Security Officer...
Surely that guard/his estate sued the lab? That ought to be a slam dunk case.
The key detail is the warning sign which he ignored. This is what might have warded the institution from a lawsuit. You can sue for your ignorance to a safety hazard but not from your own stupidity.
By far the best and simpliest explanation of electromagnetic spectrum.
They did really bad job at making sure the new guy knows all the safety measures, then fired and in the end killed him, all that while peacefully cutting mice.
Should be mentioned that UV can penetrate clothing and shade doesn't offer much protection either. The rays will reflect and bounce off of other objects. If you are serious about sun protection wear UPF clothing, wide brim hats, sunglasses AND sunscreen. Don't forgot to reapply it!
What about those at-home teeth whitening kits that include a UV light device that’s placed in the mouth?
They have detectors that turn lights on when there is movement to save energy. A detector wired in the opposite manner would have prevented the accident with the security guard.
Always like your video! Keep goingg ❤
Masterpiece of video, amazing explanation, nice details and scientifically accurate but simple!
At 11:25 Roof Workers with No Fall Protection, and no Appropriate PPE, should not Prioritize Sunlight as the Main Hazard.
"I discovered that the password I have been using ... is on the drakweb" 😂😂😂
Ultra Violet is Light on Ultra-Violence difficulty.
Would have been helpful to discuss the different types of UV and how the lower wavelength is more dangerous than the higher ones.
... It's a spectrum, and he literally started that. Try listening
Clean the cum out of your ears.
Yeah but uvc doesn’t get the rough the atmosphere and it has the deepest penetration of all uv light and there’s also uva and uvb which is why you need sunscreen
We use UV lights in air handling units for hospitals HVAC.
Might as well call me a vampire because I can't handle direct sunlight on my skin, it literally hurts, so, I avoid it and have for decades. In the most intense times of the year, even shade can be painful if it's not a good enough leaf coverage.
Bro never noticed the wicked sunburn he had after every nap ☠️
Would've loved this kind of stuff back when I was doing my undergrad. Would've made the higher level bio courses easier to understand
What's the video Dark Science uploaded before this one? I had it in my Watch Later playlist but I could swear it was from this channel and somehow I can't see it in his video list now.
Thank you.
It is more cost effective to me, to just not go outside during the day, especially during high UV. So I save money on not buying sunscreen. But sometimes, I have to go out at around 8am when stores open. The UV is low, but the warmth still disturbs me. Yes, I avoid smokers, but I still eat processed foods, because I don't have the time or energy left to cook, and clean up after. I'll try cooking meat meals in bulk, and freeze them for at least a weeks worth of food.
Holy shit your channel needs more people, amazing video
more people?
why does CZcams always take so long before reminding me that you posted, amazing video.
Our dna is really good at correcting errors. We have about 7000 gamma rays shining inside our body every second from C-14 and K-40
Having some welding experience,I knew UV could cause cancer, but never knew it was because of DNA damage. This should scare some of the welders that don't wear ppe
Also cool to learn why UV is non ionizing, but higher energy spectrum lights do
arc eye is terrifying!
That security guard should’ve sued for wrongful termination. You guys never trained him on it and no one ever told him so how was he supposed to know you guys cost his life?
So black lights will be this era's radioactive paint?
I sometimes feel guilty for having been sent to a private school… And then I feel bad because so many people don't even remember the basic middle school intro to the electromagnetic spectrum. We certainly didn't have this level of detail in the 70s and 80s - my mom was a microbiologist when they were still figuring out the cell membrane; cracking DNA was still a few decades off - even so, we were given a basic diagram showing longer and shorter wavelengths of energy, part of which was visible light, but there was also infrared (heat) and x-rays, gamma rays and alpha particles from radioactivity, microwaves which can cook meat in minutes, and ultraviolet isn't that fierce, but we have to wear sunscreen or shades and try to minimize it? So it's in that "bucket" of energy waves that can toast you more or less, and the nastier ones are radioactive and can cause cancer.
that's a very superficial way of describing it - your video explains the science. But having a general knowledge of science used to be an important part of the US curriculum, back during the Cold War. what a pity that cultural priority has been lost now that we know so much more. I'm sure this guy is one of many thousands who have died in ignorance of something that the last generation wouldn't have, for the most part.
Thank you for passing this on. I happen to work with UV lights on rare occasions at work with micro soldering. I try my best to becareful & look away aiming the beam away from me & only directly on the device with the uv glue sealant.
Excellent explanation of the electrromagnetic light spectrum as well as UV radiation causing cancer!
When did this guy get almost a million subs? Jeez
hey man, these videos are the best because for me, if I don't understand the mechanism behind something I don't do it, so thanks to you I'll use sunscreen, love ya
you’re welcome
UV Light being the lowest frequency of ionizing light is pretty well-known and is common knowledge but inspite of this, people still use tanning beds instead of y'know... just going outside.
Love how the guard was untrained, and then gets fired and dies because of his lack of training.
In the real world, it wouldn't surprise me if he said that to try to avoid punishment or simply forgot.
Even if it's true, it's more alarming that he would turn on specialized lab equipment and nap under it just because it felt warm. Whole room sterilizers look nothing like ordinary light fixtures and it's hard to imagine that someone not knowing what UV glow looks like.
The problem with UV lights (especially the easily purchasable UVC bulbs on ebay with little to no warnings) is that they are very pretty to look at. It's only a matter of time before another crowd of people get burned eyes from misuse at an event or some poor family ends up in hospital.
It's hard to feel bad for the security guard.
It wouldn't surprise me if he lied to avoid punishment or simply forgot.
Even giving him the benefit of the doubt, it's more alarming that he would turn on specialized lab equipment and nap under it for hours everyday for months just because it felt warm. Whole room sterilizers look nothing like ordinary light fixtures and it's hard to imagine someone not knowing what artificial UV glow looks like. Lastly, the warning signs are very conspicuous.
He deserves a Darwin Award.
I built a death ray with a gray market UV c led bulb that's like 4x stronger than allowable by law and honestly it's scary af
I wonder how the intensity of that UV light would compare to the sun.
Didn't the security guard get burned? I assume not because he continued to stay in the room, and if the exposure was just for a few weeks, and not even enough to burn him, I can't imagine it being a significant factor in his later cancer diagnosis
Covalent bonds are formed by cosmic love ❤️💕 and it’s so cute to see how they interact with each other in different situations 🫶 I love this 🍀
Just to mention, UV light also is in a wavelength range, so it gets divided into long and short wavelength (or near UV and far UV or, in marketing terms, UV-A, UV-B and UV-C). The kind of UV used for sterilization is usually UV-C, which is short wavelength, which in nature gets blocked entirely by the atmosphere, so we only get UV-B and UV-A. In the case of the guardian it was probably UV-C (although I've probably seen some UV-B lights, because UV-C glows in a pale blue and not violet for another reasons), so yeah, very damaging, but UV-A is "mostly" harmless in short periods of time and is the one used for hardening adhesives and resins because of the mentioned cross-linking nature and for most of the crime scenes investigation, but the thing is, UV-B which causes sunburns (and in very long exposures or for many years causes cancer) is also responsible for vitamin D synthesis in the body, so we need some UV light in our lives, just not a lot, so don't be worry of the sun, just get some protection when staying outside for long periods of time
The people in the Dying Light universe: "Better than a volatile..." 🙃
11:23 In California, I know roofers legally have to wear long sleaves and wide brim hats. Their rates of cancer were much higher than other construction workers. I'm not sure if it's the health insurance or occupational safety that require it, but it's required. Whether people actually follow the rules, especially at smaller companies, is another thing.
If I have an electric insect killer in my room that has two UV light tubes, is it hazardous to me?
r u insect?
This is one of those rare videos that just pulls a whole boatload of disparate facts in my head together in a mind blowingly simple way. I can't believe how clear a lot of these connections are now. Like WHY does UV disinfect? Oh crap, it's literally the same mechanism that gives me cancer! And WHY does UV give cancer but regular light doesn't, and why are X-rays so much more dangerous. I knew all this stuff individually but never thought about it all holistically. Great video.
That feels so unfair for the security guard tho, he was never trained on the dangers of the uv light, and then he just got fired, with health hazards from work...
Fired for sleeping on the job.
What happen with other led lights, such as red, green, ..? Are they dangerous? They are being used for beauty skin.
Has no effect: Those are under the visible light spectrum, which as stated in the video, cannot affect carbon molecule bonds in any way as they lack energy to do so. Now, if you were to look at the blue glow produced by sources of ionizing radiation (Cherenkov radiation)... Same applies to the infrared: It haves far too little energy to interact with anything that we wouldn't want it to.
yay new video