Do Polar Bears Have Fiber Optic Fur?
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- Опубликовано: 21 июн 2023
- This video was sponsored by Planet Wild. Head to / @planet-wild to watch some of their latest conversation missions or download the app to become a member.
Humans may use fiber optic technology to make everything from novelty desk toys to high speed internet cables, but Nature has its own ideas. For decades, scientists have debated to what extent polar bears may use the optical properties of their hollow, transparent hairs to help keep themselves warm.
Hosted by: Reid Reimers (he/him)
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This video was sponsored by Planet Wild. Head to youtube.com/@planet-wild to watch some of their latest conversation missions or download the app to become a member.
Polar bear fur is so effective for keeping the bear worm, that sometimes the bear has to rub on the ice to cool down. Even in the middle of a blizzard.
Sometimes I think this with my huskies... they're hot nomatter what. When it snows they lay in it and roll around haha
WORMMM
Polar bear worm
Much like bear, I too am worm
Is there a lot of sun light in a blizzard?
I'm never surprised anymore when someone tells me "nature did it first"
Cause it's almost always true.
Pumps, wheels, even freaking toothed gears and a natural nuclear (albeit that's more of a quirk caused by some very lucky geology, not evolution) reactor!
And the remote control. There is an electric eel that can send a small pulse thru the water that make’s it’s prey twitch so giving away its location.
If you want another crazy nature marvel, you should search up butterfly’s “scales” that give them that vibrant color of theirs. NANO-STRUCTURES!!!
Yup, nature runs its own science experiments but they take thousands and millions of years, while we are doing it on a remarkable speed! But most inspirations are found from nature and it's awesome!
Can you give a example of toothed gears in nature?
@@valterkaugust8511 youtube won't allow the posting of links but google _"Issus coleoptratus"_ or just "naturally occurring gears" and see for yourself.
It's only one species of insect and the gears don't remain through the bugs entire life cycle but nevertheless, they are real.
Those bears must get phenomenal data rates
I plugged my internet into my polar bear.
Never had a better signal
Everybody needs a companion like polar bear to cheer you up in dark times of need
Chew you up in dark places*
No, that's a hippopotamus we need.
Same thing as human beard hair. I was doing welding and found out if your beard sticks out below your mask then the UV light will bounce around inside the hair follicle all the way up to the root and burn your face. I kept getting UV burn and I couldn't figure it out until my boss told me to put my beard underneath my mask.
Beard are just glorified pubic hairs
@@dinozaurpickupline4221 well factually accurate your statement is socially wrong. They are more then glorified pubic hair because the mean more then just that to humans. Esspically if ones beard is well kept or not at all. The difference between homeless, ZZ Top, or biker is all in the context of what's done. By the standard you set out with your statement hair is just thousand of glorified fine thread fingernails. Same cells make the same proteins for both.
@@holderheck I wouldn't call them glorified nails buddy
@@holderheck it's a joke man
Everyone who's ever worked in audio, computing or data suddenly realises that "lossy" is not a widely used term.
I'm assuming the white was more important due to stealth in its environment and it's likely that the uv are absorbed since other animals don't see in that area of the spectrum. Rather than being optimized for keeping warmth it sacrifices the heat found in the visible spectrum while trapping as much heat from other wavelengths.
I never knew the novelty fiber optics lamp of the 70s, was the future of internet.
Fill a large, non-translucent container with water. Cover it with a non-translucent cover. Cut a hole in the cover just large enough for a flashlight. Shine a flashlight into the hole. Drill a hole in the side of the container. Turn off the lights in the room. You will see the light shining through the hole, but following the curved path of the escaping water downward. Just like fiber optics.
Single mode glass fibre optic cable (data) is a glass core surround by a glass cladding. The two glasses used have two different refractive indexes
I love it when Reid talks about bears.
I just wanna know how fast Polar Bear bandwidth is
I heard that the action is more like a tiny greenhouse effect. The air inside the hollow hair warms and is absorbed by the black skin.
Algae loves to grow in their fur because it has access to warmth, sunlight, and protection.
Lossiness doesnt matter as much if you arent sending data?
Maybe the hollow tubes are just making use of the insulating effect of air..
Props++ for the correct pluralization of medium.
My internet speeds have been _way_ faster since I connected a polar bear to my router.
Awesome and very informative! Polar bears are the best 🐻❄️
This explains all the prank calls I keep getting from Canada!
If infrared light can absorbed by the fir using this effect, that should also mean that more heat is also lost as infrared energy can be radiated outwards also. This wouldn't be beneficial.
I wonder if anyone has researched yet the similar effect with cat's fur. A little bit of sun on a cold day, and the fur is hot, and it works even at a cloudy day rather well. Remembers me a bit of the coating of high tech solar thermal collectors.
Is that what a cat scan is 🤗
No idea - never got close enough to look along one!
That’s so cool! 😮
So cool!
Lossy and Lossiness.... man ...reminds me of when learning Signal and Noise Physics... that was simultaneously some of the most fun and most painful moments of learning i had
Another reason why my favorite animal is awesome 🥰
Dow Corning and Siemens are proud 🙏🏻😎👍🏻
It's good to see a bear reporting on another bear. 😉
I thought for sure that voice was Penn Jillette!
Interrsting video too :D
Love scishow! You're awesome! But ya missed the opportunity to help people understand total internal reflection.
It's an easy implication from refraction. Most people know of refraction. In the following I'm following scishow's way of referring the angle to the border surface.
Just
-refresh them on the mechanics and
-then make an animation of a beam hitting a border (to a medium with lower refractive index) and
-make the angle shallower and shallower.
-the transmitted beam will always have an even shallower angle
-so now you pose the question: "what happens if the incoming beam's angle is so shallow, that the transmitted angle is 0 degrees?
-what happens beyond?"
-0 degrees means that the transmitted beam doesn't exit the inner medium
-but we know, that if it doesn't exit, it reflects and
-reflection is always at the same angle as the incoming angle.
-and indeed, that's what happens: it reflects.
-once (according to the formula used to calculate angles of refraction) theoretically the transmitted angle would be 0 or lower, it does not transmit and reflects according to the laws governing reflection.
Please hire me scishow lol
So since grizzly bears are invading polar bear territory and mating with them, does this mean that pizzly bears will actually have an advantageous temperature regulation adaptation during future climate change?
If a polar bear mates with a black bear, would you get a really vicious panda?
Bears are carnivorans of the family Ursidae, there are fifteen extant bear species within five genera and two subfamilies, bears are currently native everywhere except for Africa, Oceania, and Antarctica
Taxonomy:
• Family: Ursidae (Bears)
•• Subfamily: Tremarctinae (Short-Faced Bears)
••• Genus: Tremarctos (Modern Short-Faced Bears)
•••• Species: Tremarctos ornatus (Spectacled Bear)
•• Subfamily: Ursinae (Long-Snouted Bears)
••• Tribe: Melursini (Sloth Bears and Fossil Relatives)
•••• Genus: Melursus (Sloth Bears)
••••• Species: Melursus ursinus (Indian Sloth Bear)
••••• Species: Melursus inornatus (Sri Lanka Sloth Bear)
••• Tribe: Ursini (Small-Eared Bears)
•••• Subtribe: Helarctina (Sun Bears and Fossil Relatives)
••••• Genus: Helarctos (Sun Bears)
•••••• Species: Helarctos indochinensis (Indochinese Sun Bear)
•••••• Species: Helarctos malayanus (Sumatran Sun Bear)
•••••• Species: Helarctos euryspilus (Bornean Sun Bear)
•••• Subtribe: Ursina (Common Bears)
••••• Genus: Euarctos (New World Common Bears)
•••••• Species: Euarctos americanus (American Black Bear)
•••••• Species: Euarctos emmonsii (Glacier Bear)
•••••• Species: Euarctos cinnamomum (Cinnamon Bear)
•••••• Species: Euarctos kermodei (Kermode Bear)
••••• Genus: Ursus (Old World Common Bears)
•••••• Subgenus: Ursus (Brown Bear Lineage)
••••••• Species: Ursus (Ursus) arctos (Brown Bear)
•••••• Subgenus: Argentarctos (Silver Bear Lineage)
••••••• Species: Ursus (Argentarctos) syraicus (Silver Bear)
•••••• Subgenus: Cyanarctos (Blue Bear Lineage)
••••••• Species: Ursus (Cyanarctos) pruinosus (Blue Bear)
•••••• Subgenus: Selenarctos (Asiatic Black Bear Lineage)
••••••• Species: Ursus (Selenarctos) thibetanus (Asiatic Black Bear)
•••••• Subgenus: Thalassarctos (Polar Bear Lineage)
••••••• Species: Ursus (Thalassarctos) maritimus (Polar Bear)
5 minutes, not bad🤣 definitely the fastest I've ever been here
Computer science uses the word "lossy" too, and it's opposite is lossless
In Scotland they have Lossness.
The fiber optics that are typically used for data transmission is all glass with a buffer coating for added protection. Plastic cladded fibers aren't used for data transmission due to the very high attenuation over a kilometer.
nature is always first
Cool 😎😏👍🏻🙏🏻
Go Go Sci Show!
Is there some type of scishow cool science box that we can get monthly or quarterly or something like that?
The myth that black attracts heat has already been disproven.
Omg I'm in this episode
Yes?
Cause they need it to live?
Now they're turning into growler and pizzly bears
I find it hard to call a 500kg murder machine, that hunts people, like any other source if meat, "the cutest" 😅
I read this around a decade ago. Polar Bear fur aren't fiber optic, rather more like light sponge. It doesn't transmit light much, more like absorbe energy as heat.
Please do a scishow explaining what implosion means and the Titan submersible
Oh yes please, that's an interesting subject for a video!
Implosion is the opposite of an explosion. Meaning that something rapidly contracts upon itself. Using vacuum can have this effect. Supposedly, some of the hardest materials around are the result of implosion, making the materia inside denser.
Not just polar bears. Chow-chows as well.
Within 12 days!
Maybe but the connective tissue in the human body is fibre optic and electric magnetic conductive.
Wow. Who knew?
Killer Walking wifi Bear.
So a bear with no fur is called a cordless bear? 😂
Arguing over whether the fur is truly fiber optic or not seems like splitting hairs to me...
I applaud what you did there. 😂
What about Samoyed hairs
Normal glass looks green edge on but if you had a block of fibre optic glass 4 miles thick you would be able to see through it like it wasn’t there.
Ps. If you have a block of fibre optic glass 4 miles thick please let me know as that stuff ain’t cheap and perhaps we could sort out a deal
Oh man imagine accidentally skydiving into solid fiber optic glass
0:38 not that we know of anyway....
Just because the host will never be as cute as a baby polar bear, doesn't mean everyone is such rough looking, don't generalize. Thank you.
*Photo credits:* _The Happy Fat Polar Bear Club_
How didn't you have Rose doe this one?
fibear optic
My polar bear is also my router. 😊
I love Polar Bears
So a polar bear in the artic (or antartic?) Can get optical fiber, but I'm still stuck with adsl, huh?
I had a patch of polar bear fur. It feels hollow
I remember in the mid 80s as a student in ~3rd grade learning that polar bear fur is actually clear. That in addition to their black skin, has made this information pretty well understood for several decades now. Has it somehow been further proven recently? Why is this addressed as though it were breaking news?
😢😢😢
6:37 6:37 6:37
So only animals in the light.
Don’t glass sponges aka Hexactinellid sponges have actual fiber optic cables?
Fur sure!
If the fur "tubes" were going to capture and redirect light to the black skin of the polar bear for heat wouldn't it make more sense for it to be infrared light?
This guy's voice is so similar to Penn Jillette's.
Ah yes, polar bears, the cutest, you say. Haven't been in a region with polar bears huh? (Me neither lmao)
any animals with laser?
80,611th viewer of this video!
Yes, but only bear-ly
Fur-ber Optics
Well played😅
VERY CUTE #hotbear #lossy #yum #yeahboi
2:45 That's creepy-looking.
So, we have a carbon-free way to fiber optic cables; shave millions of polar bears.
ok very interesting fur and interesting applications but "warmer than cotton" isn't exactly the highest bar XD I hope they compare it to wool at LEAST, and ideally compare it to wearing real fur.
Whats so funny about lossy? I have seen it a lot.
Ice bear gets cable signal
TLDR; yesn't
If so deadly, why so cute?
Evil genius boss move
I mean, a lot of the animals that humans consider cute are predators. The two most popular pets, cats and dogs, are predators.
@@FrozEnbyWolf150 And Wolves! Lol
Me no likey the halo for the presenter in your background
Can I edit/splice my genes, as I'm living?
Or does it need to be done pre-womb 😬
yay polar bears
That artificial polar bear fur is better than cotton at keeping people warm but cotton is one of the worst materials to wear in cold weather anyway. I.e.: Cotton Kills.
Does Reid Reimers have an Oklahoma accent?
If not, can anyone tell me where his accent is from in America.
It's a pretty generic central US accent. There's so little variation across most of the US that even Americans can't tell the difference. He could be from anywhere in an area the size of Western Europe
@@LawTaranis Thankyou for amswering. Is a central accent the same as a mid-west accent then? I realise that American accents are much more general than some other places, I know of the typical accents, plus some smaller areas like for instance, baltimore, Chicago, New York, etc.
The only reason I thought of an Oklahoma accent is because it reminds me of the big, blonde haired Okie farm-boy's accent in Stephen King's The Stand!
Accents have always fascinated me, is all. Peace ✌ 🙂
He's definitely west of the Mississippi river... probably east of the rockies xD
That's all i can tell you haha
He's from Missoula, Montana.
@@Linguae_Music lol. Thankyou! ✌️
I found it so cool when, years ago, I found out that polar bears are actually black and their fur just makes them look white, but isn't even white itself. 😯🐻❄️
#StopArticDrilling #SaveTheArtic
I've heard of lossiness in terms of audio... Is that a similar thing? I'm dumb, so if anyone knows, speak slowly, if you know what I mean.
it's similar in the sense that both involve "losing" something, but that's about it. lossy compression is when information is made smaller, but with the downside of losing some of the original information. in audio, that tends to mean we lose information that would be difficult to hear or discern, but we get much smaller file sizes. in this video, "lossy" is about how much light escapes when using polar bear hair as a fiber optic cable. light that escapes the fiber can't be interpreted at the other end, so if too much escapes it becomes too difficult to interpret
@@jotch_7627 You're the best! Thank you. That makes perfect sense to me.
Ah, so that's the reason why polar bears are hot.
I always wondered xD
More like fi-Grrr optics... 🤣
عاصم نووب
I finally have a use for all these Polar Bear skins, I'll head out and grab some more.
The fur doesn't for the most part don't face the sun, or up.
???
I got hear within 10 minutes
Shout out too @mossyearth the original rewilding RUclips channel... At least I think