What's The Probability You Have Seen A Neutrino?

[@warmweathr]

Optometric tech here. Blue flashes of light can also be caused by post vitreous detachment. An interesting phenomena wherein the vitreous (jelly) of your eye starts to liquify and separate away from the retina. As it detaches, your body perceives this stimulation as light. It’s also the reason you may see floaters in your vision sometimes as well. But like the video said, it always could be a retinal detachment. If your symptoms are ever worrying see a doctor.

[@ironmaz1]

wait so floaters are bits of the vitreous?

[@rabbitskywalk3r]

Interesting coincidence...

[@VeiledPrincess1]

So basically if it’s ever more than one brief flash go see ur eye dr 😟 👀

[@dmdrosselmeyer]

@@ironmaz1 maddening that they never responded to your question lol

[@leesweets4110]

Nobody likes it when their jelly starts to melt.

[@1959Berre]

Very rarely, maybe just 2 or 3 times in my 62 year life, I have experienced a small bright flash. It happened to me in a complete dark environment, at night, when my eyes were totally adapted to the darkness. I don't suffer from any eye related health issue. I guess neutrinos are not the most probable cause of flashes inside the eye. Lots of high energy particles, cosmic rays are bombarding the earth constantly. Exceptionally, gamma rays may find their way to the earth's surface and strike the retina of a human eye.

[@sofieselene]

These kinds of flashes are well known to afflict astronauts as well, due to their higher exposure to cosmic rays outside of the Earth's magnetic field. Since neutrino interactions are so rare and the volume of our eyes are so small, we could only expect our eyes to actually detect a neutrino every couple billion years on average, even with very generous estimates for the neutrino detection capabilities of our eyes. For reference the IceCube detector is about 1 km^3 and expects to see about 75 neutrino detections a day. The combined volume of our eyes are about 13 cm^3, or about 10^-14 times the size of the IceCube detector, so even if our eyes were as sensitive as the IceCube detector, we'd only expect a single detection every 2.8 billion years or so.

[@نظريةكلشيئ]

@@sofieselene How do strings turn into membranes in M-theory?

[@pinkplayspkmn5011]

Yes same here I though I was nuts I’m 31 this happened maybe 4 years ago

[@nerfmods1234]

wow you are lucky

[@jennifergraceh]

This has happened to me a couple of times at night, in a totally dark room, as well! It freaked me out! 😂 whether or not it was one of these particles, I can’t say for sure, but it was weird.

[@philophos]

I haven't been keeping an eye (heh) out for faint blue flashes, so I have no idea. I'll think about it forever now, but sadly I'm not often in very very dark places. And even if I were and it did happen, I'm pessimistic about my brain parsing it as noteworthy. Unless it's a revelatory flash, I'll probably automatically dismiss it like I dismiss all the other curious photon-retina interactions that happen throughout the course of life. Still, I love the fact that you've found the most legitimate way to ask, "Have you seen a ghost?"

[@sofieselene]

Neutrinos interact only rarely with atomic matter, so if you *do* experience such a flash, it's almost certainly some other cosmic ray that caused it. Even with very generous estimates, a neutrino detector the size of our eyes would only detect a neutrino event every couple billion years, on average.

[@philophos]

@@sofieselene I can't tell if you're just offering me your general take, or whether you think I've said something that I haven't. It sounds like your qualm is maybe with the maths/claims in the video. I was just saying I would very likely dismiss a faint blue flash of neutrino origin, in the rare or ultra-rare event that it did happen. My admittedly less interesting comment is consistent with everything you've said here, and also everything in the video.

[@jmcsquared18]

Minor correction at 1:29: the weak nuclear force is not called weak due to its short range. The strong nuclear force also has incredibly short range (it's confined to the nucleus and inside of nucleons). The weak nuclear force is called weak because its field interaction strength is magnitudes smaller than the strong interaction's field strength, which is powerful enough to overcome the electromagnetic repulsion between protons (also stronger than the weak force) and bind them together to form nuclei.

[@nucle4rpenguins534]

I was going to comment something similar that it had to do with the “strength” of the force as well rather than it’s ‘range’ (so to speak) where it’s a relevant quantity in a system.

[@mrsamot4677]

Bro used to develop quantum computers. I guarantee he knows how particles interact better than either of us and is just dumbing down the it down by magnitudes so it can be a digestible KZbin video. It was a necessary oversimplification not to be taken literally. Just like how you shouldn’t actually think that there’s a constant stream of little tiny neutrino pellets traveling though you. That’s not how wave functions work. Just a simplification on how to visualize and understand it.

[@jmcsquared18]

@@mrsamot4677 Saying that the weak force is called weak due to its short range is not dumbing it down orders of magnitudes. It's just inaccurate. Also how do you know what I know, or what the person who runs this channel knows? Have you ever met me, or him? Your comment comes off as quite presumptuous.

[@leesweets4110]

Here's a question... why do stronger forces have shorter ranges and weaker forces have longer ranges?

[@jmcsquared18]

@@leesweets4110 the strength and range can actually vary independently. For instance, the electromagnetic force is much stronger than the weak nuclear force, but much weaker than the strong nuclear force; yet it has an unlimited range, compared to the very small ranges of the two nuclear forces. Yet still, gravity is weaker than all other forces while also having an unlimited range.

[@geodesic1974]

Your brain creates a composite image from both eyes - generally favoring what it considers the most relevant data. But the neutrino hit would only occur in one eye! I'd wager that if you had one eye shut and the hit occurred in the closed eye then the brain would simply edit out the flash, favoring the more relevant (open) eye data. If the hit happened in the open eye (with the other eye still shut) then the hit would probably be seen with little to no compositing for the same reason. If both eyes were shut then the flash should be the most relevant data and would probably be composited in as if seen from both eyes. You guess is as good as mine as to what extent the flash might be edited out or composited in by our mercurial brains with both eyes open.

[@YTEdy]

Astronauts saw single eye impacts from cosmic rays in space, but those were much more energetic. I don't think it's true that a single eye can't see something. Certainly if a laser pointer is directed at a single eye, a person would see it (please don't try this at home). It may be that the Neutrino flash is too dim to notice.

[@evilkidm93b]

I think the amount of "raw data" humans see is highly individual. Take optical illusions as an example: some people see them others don't. I always see "visual snow", none of the optical illusions concerning color work on me, and I see the spherical distortion of the visual field. However, illusions with patterns and differences in brightness always get me, while others don't perceive them at all.

[@hyperteleXii]

@@YTEdy How bright is 200 photons across a cm2?

[@YTEdy]

@@hyperteleXii I'm not an expert in such things, but the eye can receive around a billion photons per second (estimates vary but they're all within an order of magnitude of that), then 200 is nothing, but the 200 photons would happen in an instant. If it was sustained it might be bright enough to see, but it's an instantaneous flash. It might be too quick to see. That would be my guess. The flash in a neutrino interaction in the eye would be there and gone so fast that we would probably not pick it up. But again, what the human eye might be able to see really isn't my strong suit.

[@krischi_mk]

*Edit: It is true!* 1:04 sadly it's not true! Since the photon receptors in your eyes constantly produce false alarms, the brain will only see a signal if about 12 receptors in one area will go off simultaniously. *6:23 CLEARED IT UP

[@krischi_mk]

Source: kzbin.info/www/bejne/eJPLo3uIqLBkiZY

[@hardwarefromthegarbage3446]

So sad, but truly interesting info, brain has data stream correction. Really cool 😂

[@puskajussi37]

Paraphrasing, the video states that a neutrino impact would produce hundreds of photons.

[@s33wagz]

@@krischi_mk 6:32 fortunately it is true. thank you for linking your source, it shed more light on the situation....

[@hardwarefromthegarbage3446]

@@puskajussi37 But would enough of them collide with receptors? Just asking

[@melm4251]

top of my christmas wish list is a DoS branded vat of human eyeballs

[@drewdurant3835]

The science!

[@johnreid5814]

That was fucking gross

[@agiovannaamorim]

Once a year I see a small dot of purple light in one of my eyes (but it happens in both of them), in random positions and places. Now I know that statistically it's more likely to be an optical health problem. But thank you so much for that amazing content!! ❤️

[@knghtpaco5038]

I had something like this happened to me, it was a few years ago. I was Caving in West Virginia and we where sitting with are lights off to experience the total darkness of being a few hundred feet below a mountain. I saw a faint flash of light in my left peripheral vision but i do not remember the color of the flash, at the time I believed it to be my mind playing trick on me as is know to happen in those kind of environments.

[@botboy0]

could be radioactive rocks giving off gamma radiation

[@DukeBG]

people normally sleep for 8h per 24h, so there's basically a 1/3 chance that a person with a "neutrino flash" is asleep as it happens.

[@sofieselene]

That doesn't even compare to the incredibly unlikely odds that a neutrino *would* interact with a person's eye. Even with the very generous assumption that our eyes are as effective at detecting neutrinos as purpose built detectors, on average it would take a given person about 3 billion years before a neutrino interaction was detected within their eye.

[@daniellassander]

The worst part about filling up two super kamiokande with eyes is that no one of us would have eyes to see the spectacle with.

[@PierreH1968]

Excuse my question that might seem silly to you. But I heard you say that light travels slower in liquid. My understanding was that the speed of light was a constant (i.e the C in : e = m x C^2). Does it mean that C is the speed of photons in vacuum? and when you mean light in water you mean photons?

[@sagarshrestha5800]

. to see reply.

[@PenandPaperScience]

Again incredible video! Quick question: What software do you use for animations? Keep it up! 🙃

[@markzambelli]

6:00 "And that's why *_eye_* love physics!"...🤣

[@keepsonticking]

ive had a random blue flash of light appear in my left eye one time while i was trying to sleep one night last year, havent seen anything similar to that since

[@paramn4031]

I searched and landed on this after it happened me to few minutes ago, similar to your idea after I saw the flashes, I wondered whether it was particles like neutrino as I already knew neutrino constantly bombard us with little to no interaction. About the flash it wasn't as blue that you see during cherenkov radiation for me it was bit more greenish and a bit blue near the edges.

[@charlotteharperlurae9009]

I’m freaking out ! 😮I’ve been helping my siblings, getting inspired to learn. This happened to me a couple days ago coincidentally we were supposed to watch this video but I had an accident. So I’m watching now with them! ❤😅 I’ll get my eye checked out if it keeps happening!

[@freedomofspeech2867]

After I learned about how eyes could detect particle collisions inside of them a couple of years back I've noticed a couple. One was blue but I'd imagine that's probably some other particle or something else entirely. It was a blue dot that was there for a fraction of a second, fading very fast.

[@joelpainchaud4887]

Statistically speaking, if you’ve seen this more than once in a lifetime, seeing an eye doctor about it might be a good idea. Like the video and other comments said, there might be a medical reason behind seeing these flashes.

[@freedomofspeech2867]

@@joelpainchaud4887 Maybe, or maybe it's just other particles?

[@victoriay6246]

Hahahaahha. Are you being funny? These are so small and mysterious it would like be winning the lottery to even see a flash. 1 in 89000 years. So low. So simplest answer is if you have seen more than one…. There is probably something medically wrong with you. No one is that special 😂😂😂😂😂

[@fazilnajeeb]

FUN FACT: Since it is neutrinos, if this we can see these flashes even with eyes closed NB: So don't worry about keeping your eyes open during the whole night. PS: By closing the eyes prolly your visual cortex may not work as when u are awake.

[@jefbryant3340]

I have seen an unexplained flash in one of my eyes. It was quite a few years ago on a flight from London to Seattle. The lights in the cabin were off. I closed my eyes and leaned my head back to sleep and I saw quite a bright blue flash in my field of vision. I wondered what could have caused it and thought that it might be a cosmic ray, as we were over the magnetic pole. I mentioned it to a respected friend of mine and he told me that the Apollo astronauts reported seeing flashes in the interplanetary space between the Earth and Moon.

[@neuroatypical6984]

I have seen a few faint flash of white light at night if I remember correctly I see somewhere between 1-3 a year and I believe I spend an average of 1.3 hours awake in the dark per day; it's hard for me to fall asleep; I believe it could be white if faint enough because rods are significantly more sensitive than cones and they only see white

[@ironmaz1]

I have perceived a lightning-like flash in my vision, 4-5 years ago when I closed my eyes to listen to a piano piece. I thought it was because classical music, a newly discovered source of joy for me, is so good it can elicit synesthesia. However, it never happened again. Also, I distinctly recall it being white, not blue!

[@waytoohypernova]

I swear i literally had this happen to me last night The coincidence is spooky

[@autotellic3378]

This is what happens on psychedelics but more stronger. Interesting. Has to do with Brain parts connecting to each other that normally dont or wouldn't. You prob had the piano piece as a trigger source and your Brain connected something that it wouldn't otherwise.

[@nucle4rpenguins534]

~29k views, assuming these views are unique from different people; we’re a 1/3 of the way there before we get ~90k people watching this video and roughly 1 person out of that pool probably saw a neutrino collision! Realistically to get ~90k unique viewers we probably would need this video to be a bit more watched to filter out those rewatching it (~150k total views or so maybe would be enough)

[@ArtVideos-og9dv]

I have a visual-migraine, which causes my perceived vision to spack-out and display glowing patches of distorted light for 20 minutes once every month on average.

[@invisible_maxim7354]

i swear i have seen once like 3 months ago. You can imagine a black monitor infront of you and only 1 pixel turns on for 1 sec and flashes blue and a bit red. I was kinda confused but now i know what that was.

[@yosefmacgruber1920]

There are probably too many possible explanations, for a neutrino to be all that likely. What about a neuron misfiring, or some other sort of cosmic ray or particle? We see on camera sensors sometimes, when the light level goes too low, they start showing visual noise. I doubt that the areas of the brain and eyes involved, are really quiet enough to see with much reliability a neutrino. Perhaps, but aren't there so many other things that it could be, that are more likely? When we close our eyes and tune in, how many people see strange patterns of color, that we likely figure out are just "noise" and we learned to ignore from a very young age? When things are too quiet, you can hear the freeway or cars that are many blocks away. The retina has many imperfections, yet we can't seem to see them, because the brain learns to filter them out. I have heard somewhere that they have done experiments with "upside down" glasses, and after I think mere weeks, people adapt their eyesight, and removal of the glasses causes normal vision to appear upside down.

[@neuralink7018]

Requesting the map of Science, but like a long, 1 hr + version for 1 million sub special :D

[@leesweets4110]

Only see it in the dark? When are we ever in the pitch black except while sleeping? Sounds to me like no one would ever see this, ever.

[@flerken1822]

Yay, neutrinos!

[@jsal7666]

Yay, neutrinos!

[@a2izzard]

Yay

[@johnreid5814]

I saw a giant blue flash in the sky at night when i was a little kid. The whole sky lit up like a quarter the brightness of daytime. Really freaked me out. I have since head of a green flash in the sky somewhere around sunset so ill just leave it to that.

[@ramakrishnanpanchapakesan299]

also the cerenkov radiation would have to be in the visble spectrum of light, for eye to even be able to see that sub-femto second flash

[@sofieselene]

Many cosmic rays would cause these kinds of flashes, a phenomenon that is well known to inflict astronauts. Considering the interaction cross section of any other kind of cosmic ray versus neutrinos, and the small volume of the eye, it's drastically more likely that any flash is a different kind of cosmic ray than it is that it's a neutrino. Any given flash could also simply be a visual disturbance with some other cause, which are common as well. Even assuming that our eyes are as effective at detecting neutrinos as the IceCube (at 1 km^3) observatory on a per-volume basis, and using generous estimates of IceCube's full capacity (75 detections per day) the rate of a neutrino detection occurring within the volume of both of our eyes (a combined ~13 cm^3 or 1.3e-14 km^3) would be about 3.56 * 10^-10 detections per year, so with the standard neutrino flux passing through Earth, we can expect about one neutrino detection per person every 2.8 billion years, or about 3-4 detections per year among the entire human population of Earth, as a rough estimate.

[@ananya.a04]

Amazing information! Thank you for sharing this with us!

[@GMPranav]

I have definitely felt flashes in my eyes rarely but not quite sure if they are neutrinos, probably not. Probably some rando cosmic rays.

[@radiradev3013]

2:15 This is not true, as quarks also oscillate between flavors. This oscillation is described by the Cabibbo-Kobayashi-Maskawa matrix. Quark mixing angles however, are not as strong as the ones describing neutrino oscillations.

[@floylde]

I just saw a small line of light of some sort. Very small and very thin and white. It lasted longer than me closing and opening my eyes. But just once. By the time i closed my eyes a second time it was gone. Thats why i searched for this video. Wasnt a flash it was a small line that lasted about 1 second. Anybody else had this happened?

[@floylde]

I hope i wont mutate badly

[@wdm_frwrd]

Back in my school days, I had a theory that these strange flashes in the dark while I was lying in bed could be flashes from neutrinos passing through my eyes. And now, after many many years, some dude from KZbin made a video that this is possible! Haha, incredible!

[@hq4287]

I've done the maths and community of 1100 would have one individual within them in their lifetime see this flash. I'm probably forgetting some errors but that's roughly every small town in world. Now the truth is that lots of phenomena that feel weird do get reported. This is probably not one of them because to the average onlooker the neutrino and the general weirdness of light itself are not unalike. I'm trans and a huge proportion of the earth in some way have something like me going on and yet people all over the world deny our existence.

[@sofieselene]

The odds of it being a neutrino are incredibly less likely due to the extreme rarity of a neutrino interaction with regular manner and the small volume of the human eye. The IceCube observatory is much better analog to the human eye than the Super-Kamiokande detector, with about 1 km^3 of ice being used as the detection volume. It expects to observe about 75 neutrinos per day, and even assuming that the human eye is as effective at detecting neutrinos as the IceCube detector - which they're not - the 1.3 * 10^-14 km^3 volume of our eyes would yield a detection rate of about 1 every 2.8 billion years, per person. To estimate it for a population of people, we can take the total volume of their eyes (at 6.5 cm^3 per eye), estimate how many detections they could observe per year on average, then multiply that by their lifespan to estimate their odds of detecting a neutrino within their lifetime. So for 1100 people, with a combined volume of 13 cm^3 * 1100 or 1.43e-11 km^3, the community could be expected to detect about one neutrino every 2.5 million years. So they'd have about a 0.004% chance of detecting a neutrino over the span of a lifetime of 100 years.

[@vinskeeter]

I have noticed flashes of light in my eyes. They were barely perceptible. I think they were due to some other phenomenon, though. It happened about 20 years ago one night and it happened several times within a few minutes in a dark room at night as I laid in bed. My wife did not see them.

[@DakotaFortnerECAA]

I feel like I've seen odd flashes of white or blue light with my eyes closed at night. very rare, like once or twice every few years, I just remember experiencing a light that seemed to flash and made me think a light turned on in my room. only to open my eyes to darkness

[@anonamemous6865]

Mhmmmm I'm not sure if i experienced this mhmmm

[@gardenhead92]

Ah yes, that's why I have all those eyeballs in a fishtank in my garage... just trying to detect some neutrinos... for science

[@martasantaclara7694]

I have to say - it is sooo interesting and easy to hear you explaining about quantum physics ! I also have to share the fact that I have had many weird experiences of little alterated perception moments in my life, which I was able to understand and expand through meditation, but which I could only find meaning and scientific evidence for them when I dove into quantum physics. suddenly all the layers of reality and filters of perception we use to understand life in Traditional Chinese Medicine are deeply entangled and operate in the Quantum world. specially meditation. Funny fact, the "rain of neutrinos" coming from the sun, passing through us and all visible reality, I've seen it with eyes closed, and we use it to visualize a rain of energy cleansing our body in qi gong meditation. uau ahah sorry (long text) I got super excited with your work!! :) Thank you for sharing! Marta

[@evilkidm93b]

I did see flashes of light a couple of times, all during the night and my father told me he has too. They were all very defocused, encompassing almost the whole field of view and on one eye. However, they always seemed white to me, maybe because they were faint?

[@evilkidm93b]

@@AustinThomasPhD Absolutely! I've heard about the background radiation effect a few years back. But I'm thrilled to learn now that even neutrinos could in theory cause such flashes. This is new to me! What a magical world we live in. I'd be excited to hear of more witness accounts.

[@killerbee.13]

Unfortunately, even if I were to ever see this, I get frequent migraines which cause visual disturbances that *also* take the form of blue flashes in dark rooms, so I wouldn't notice it.

[@anyssaguerra942]

Ok, I came here looking for answers… now I just have more questions and idk what to do… I’ve been experiencing seeing moving particle more than 3 times a day. It happens so often I usually just stare and tend to lose myself in watching this happen before my eyes… idk if stress or anything like that increase this but I’ve never experienced anything like this and now it’s as if I’m waking up completely and seeing the world move and come alive.

[@lupita3689]

You mentioned that the person who sees it also has to be in a dark room, so really we’re talking about when the person is staring into a dark room, or when shutting their eyes trying to sleep, that does not account to much time on a daily basis, i wonder if you accounted for that when you say we need 90,000 people on average. Also chances are who’s gonna really remember and notice it anyways…

[@sethapex9670]

What would happen if there were a nutrino collision in your brain? You wouldn't detect light from it but would it effect your thoughts at all?

[@autotellic3378]

Could it be that on psychedelics you spot them easier cause of Brain parts connecting that normally don't.

[@andrii4545]

Ask spiders. Four times more eyes.

[@coastsidescience]

1:01 ... I'll have to find it but I'm pretty sure I heard an astronaut discussing this possibility / experience. I do believe, however, he was referencing the greater concentration of subatomic particles that people are exposed to while in the exosphere ... but he did mention neutrinos ... Love the video! Thanks!!! - Scott Forbes - Middle school science teacher.

[@sofieselene]

Astronauts are well known to suffer from flashes in their eyes, due to the increased cosmic radiation outside of the Earth's atmosphere. However, neutrinos interact only rarely with atomic matter and as a consequence it would take the combined volume of a person's eyes about 2.8 billion years on average to detect one, with the generous assumption that our eyes are as effective at detecting neutrinos as purpose built detectors.

[@WeeWeeJumbo]

my vision induces an array of infinitesimally small, flashing red blue and perhaps (PERHAPS) green dots. i see them at all times and regardless of whether my eyelids are open. i've seen them all my life and no doctor has ever been able to build a diagnosis from this symptom. no blue flashes though, except when i was trippin BALLS back in my wasted youth

[@EchadLevShtim]

I think they are wrong because I see them in my sleep every other month. These lights wake me up sometimes. There is a strange dream that can go with it, where I leave my body and travel in Time. The crazy part is these dreams are not always dreams and the future events happen as I saw them. My last Muon Effect was a vision from July2019, where I saw Kamala as the President before I ever saw her in Real Time. You heard that right, Biden is about to fall and Kamala takes the seat. Then other crazy stuff starts. Ive posted my precognition ever since and just waiting now. I even started my Energy Collectors now for the coming Power Grid Shutdowns.

[@LostLightAstrophotography7]

Only once ever have I see a blueish whitish flash which could possibly being hit by one. Swear on my moms life but about ten years ago I was sitting looking out my window and I am just seeing how dark it is out, just looking around and then all of a sudden this great flash happened, it started a point and expandes and filled up my whole POV. It was whitish in the center but as it went out it got bluer. But it happened so fast, it was short but really bright but it didnt leave a "burn in" like when you look at the sun. I still think about that event and maybe this has brought some form of closure on what that was.

[@VarangianGuard200]

I don't see light flashes but actual short electrical currents that have a short duration beginning to end. In certain circumstances I can make TV reception fail. I also have the uncontrolled ability to give tiny electric shocks haha.

[@ciCCapROSTi]

Hmm. Relativity. What happens when the frame of reference is traveling faster than the speed of light (in liquid)? From that reference frame, what is the photon's speed (the vector, not the scalar)? How is the Cherenkov radiation from that frame?

[@lord_fulgi]

I was talking with my gf 25 minutes ago and i saw that light spot-blur in my left eye. I didnt expect that at all, it was like dark blue and with a pear form (with what would be "the top" inclined 120° to the left). I dont think it has to be a neutrino but could be anyways a cosmic ray or something (theres a video of veritasium about it isnt it?), a random outer space particle. I have come to this video very fast because i remembered i saw it a year and a half ago (the video) and i dont want to forget the exact image i have now i my memory.

[@ricardodelzealandia6290]

I'll happily swap my bloody floaters for neutrino flashes.

[@romense777]

What if you factor in all the other stars in the universe. Does this increase the odds of seeing a neutrino ?

[@Maverick_Mad_Moiselle]

I've experienced flashes of light, but probably more than it would be likely to be neutrinos. I'm not Neutrino Georg. However, I know it can be caused by health issues if it's common. But flashes are also likelier to happen in people who experience visual snow like me.

[@eduardofilho1405]

Could you pls make a philosophy map?

[@Simon_Jakle__almost_real_name]

I wonder if neutrino interact when earth(quake) lights occurs. Or perhaps in comets when they are close to the sun? Some german guy even works on neutrino-voltaic like a solar panel that would harvest or "generate" energy in any environment. There's some sites about this. But that technology would make us "too independent".

[@bulbakip6380]

I've seen like 3 or 4 in my lifetime. My eyeball flashed for no reason. Could be other nervous system phenomena or whatever, but this is what I think it is having learning about them about a decade ago! Love science!

[@op_tara]

sometimes i see some particles interacting each other when i look in the sky

[@ShainaWilson]

Me too !

[@marco.trevisan]

6:01 Am I right or he even added the human eyes in the Super-Kamiokande considering the amount of blue, green or brown eyes that are present in human population? Did he take into account that David Bowie has one each colour? Ah, no, he died already, so his eyes wouldn't be here.

[@kevinmccarthy8746]

Yes I do agree about the flashes when lying in the sun and if I squeeze my eye lids down tight I think or thought, I would see this manifestation but it might be from other aberrations in me more likely, and not the Neutrino. Love your show and I am going to frame your beautiful posters on my bed room / computer station, walls.

[@deldevours]

I can't say I recall ever seeing a faint blue flash but, if it happened in the past, I would likely have assumed it to be something innocuous, such as a passing car.

[@bf314159]

Saw a bright white flash in my right eye only a couple nights ago that was bright enough to wake me up for a second. No idea what that was tbh cuz it hasn't happened since.

[@The-One-and-Only100]

What are the odds of detecting a neutrino with a cubic centimeter of cesium iodide doped with thallium gamma spectrometer in a low background lead box underwater

[@queensofthedthrone8267]

Personally I wonder if neutrinos are the key to space time. That without them the gaping maw between every atom (there is a LOT of space between atoms, even the most stubborn metals and diamonds are like grand canyons compared to pebbles). I wonder what happens when they get fed into a black hole. May time and space become one and we see all the right chiral neutrinos

[@solomonkoontz9089]

I was going to sleep one time and right after I closed my eyes and started rubbing it cause it was itchy I saw a blue zig-zag patterned flash that happened so fast I thought it was just in my head or something and my brain was playing tricks on me. I forgot about it until I was researching the difference between a neutrino and cosmic rays and stumbled on this video. Idk which of the 2 it was but I'm almost certain it was one of the 2

[@craighane2015]

A few Q's. If the sun creates the neutrinos and they don't react with ordinary matter, where do they go? Is the Universe just getting more and more neutrinos as the stars emit them? Is their total mass increasing all the time while the stars mass is decreasing? How are they created by a star? Will in time the Universe consist just of neutrinos? What does it imply about our current understanding of physics that we can't answer the fundamental questions about neutrinos he stated at the beginning of this video? Look forward to your answers.

[@juliavixen176]

Yeah, the universe is just filling up with neutrinos. Stars are decreasing in mass (also from the light they emit, and the occasional flares of ionized hydrogen). In an unfathomly long period of time the universe will be mostly photons, neutrinos, cold lumps of iron, and the occasional black hole. Most of the neutrinos we see right now are emitted when a neutron turns into a proton. And neutrinos are absorbed in neutron stars (and some other nuclear processes) when a proton turns into a neutron. Basically, the way we detect neutrinos in giant underground tanks of liquid, is to watch for radioactive decay where a proton and electron recombine with a neutrino to form a neutron.

[@TruckingScotto]

I absolutely have seen a flash as you have described. I have always wondered what it was, but now I'm wondering if it was from a neutrino collision.

[@justanotherchannelxo]

I've definitely seen random tiny flashes of blue light and been really confused.

[@Kabup2]

Let me see, a flash of blue light? Hmmmm... No, I don't think so, but I saw a lot of colorful stars after a bump in my head...

[@thepeff]

I understand why electromagnetism is presented as a unified force but I feel like that discounts how unintuitive that really is. There are numerous examples between CRT's and electric motors where it pays to treat the fields as separate.

[@VeiledPrincess1]

How many lives would I have had to lived so far for my one in 89,000 yrs chance? Not that it matters much since we don’t typically remember previous lives anyway to know if we’ve already seen one lol but cool stuff 🤩

[@Ogclassified]

i was sitting a sheetz looking out the window when i see a bright blue flash of light it was around 7:30 in the morning, the sun was directly in the direction i was sitting, my right eye just lit up with blue?? weird

[@crimemastergogo5283]

I see a flashes of light (not blue but somewhat silverish) sometimes when I exert my body too much in an exercise. But they go away as my heart rate stabilises. Maybe its because of a head rush or maybe some other reason. Good video though.

[@danielwarner9651]

I for sure has have seen a flash like this. It's a tiniest little pinprick and it only lasts a second or so. I have just had an ophthalmology visit where they dilated my eyes so I know it's not a detached retina. Pretty cool

[@jesseywater3446]

To be honest I saw sometimes sharply a surprise image in half a second even shorter time like or fire. I saw last night before sleep.in clear consciousness that’s scare myself.

[@luckylinda7777]

I think I’ve seen a neutrino(s). I didn’t even know what they were or that they even existed…..then when I was researching this weird thing I saw…I came across neutrino info.

[@brucelee5576]

Since we never found Gravity’s force particle the Graviton we can’t really say Gravity exist and we are likely never going to find it.

[@Julia68yt]

Next time I get my migraine aura I'll just amuse myself that it might as well be some neutrinos putting on a light show

[@greeceuranusputin]

If you see blue flashes in your eyes it's probably something more important than neutrinos and you should pull over and get out your drivers license.

[@lordhubble4819]

I think you made a mistake in your calculation (all the numbers are correct but) in that area of an eye the unit is [m] but it should be [m^2] not much but i noticed it so maybe you can correct it for the poster

[@OchiiDinUmbraa]

Without telling us what color would a neutrino have and how big would it be in our field of view and how for how long w would see the flashim afraid that you most of the people saying yes in the comments will be false positives.

[@gustavocortico1681]

Well the retina is on the back of the eye, so unless the radiation points everywhere, that needs to be accounted for, right?

[@sofieselene]

The majority of cosmic rays will penetrate right through your body with no issue, so the direction it's traveling typically does not matter.

[@renedekker9806]

200 photons per cm corresponds to only 0.04 photons per rod cell in your retina. That is is much less than the 10 photons per rod cell needed to detect light.

[@deridermawanj298]

coba liat matahari pagi dari setengah lingkaran sampai terlihat bulat

[@skyking9835]

When A Neurtino hits your eye like a big pizza pie that's Charenkov

[@BRORIGIN]

So, about one of your subscribers each year experiences this phenomena.

[@jake-yl8dy]

Heard about this ages ago but were here rn cos I just saw one kinda shit myself I was in bed with my eyes shut and then there was this flash of blue and it was from a point

[@parnikapawar6114]

I request you please tell me the software you use for Editing and animation 🙏 pls tell sir i am a big fan

[@houssembezzouza5005]

it happens to me Mostly everyday & i thought that those Were hallucination made by my brain ! I live In Algeria by the way & I'm Serious I do get Flashes of light Almost every day & it becomes clearer When it's dark I can't distinct the color thought To me it looks like flashes of white light

[@waytoohypernova]

I _literally_ saw a lightning-like flash in my eyes last night while procrastinating on homework. It left me mildly confused but i didnt think much of it until this video wtf It wasnt blue however, it was white and rather strong (Also no there was no storm and my bedroom light hasnt worked for weeks bc im too lazy to fix it)

[@sofieselene]

It was likely of neurogenic origin (meaning it occurred due to an error in your nerves/brain) , not cosmic.

[@bengoody595]

Well now that i am aware of this, i shall be keeping an "eye" out for it and let you know if it happens to me ;)

[@bachamalang8522]

Neutrino are so sooo small that's why they have mass, the more smaller the size the less energy the particle have, or it will be a black hole

[@pyrosapien4028]

I'm pretty sure this is how superman's "x-ray" vision works

[@redshift40]

You can also make, or search KZbin for a cloud chamber. These will not show neutrinos, but will make visible many different kinds of subatomic particle paths in real time. Very interesting to watch.

[@justbuns6404]

Flashes of light can also be a migraine symptom. I've had bright flashes, dim flashes and the usual zig zag aura's. I just call them brain glitches.

[@daviddredge1178]

But they are not very brief flashes as mentioned here (I am a migraine suffer).