This is actually how fiber optics carry light rather than how light carry data.
@michaelrichter25285 жыл бұрын
true
@Gl0ckb1te5 жыл бұрын
Wait a minute... Your right!
@weamhaleemi49845 жыл бұрын
yeah that sucks
@IrchaMan5 жыл бұрын
It's ones and zeroes, just like conventional copper wires. Instead of elecricity going on and off, it's light going on and off :)
@BigTopicschannel5 жыл бұрын
information is on and off combined with time multiplied by 1000 000 'sss
@uss_045 жыл бұрын
I tried absorbing data directly through Light mode and now my Retinas are scorched. #NoFilter
@Vicvines5 жыл бұрын
You need to RMA your retinas. Don't tell Asus how you scorched them. Say you don't know how it happened otherwise they may deny the RMA
@flameshana95 жыл бұрын
This is why everyone wants Dark Mode.
@kodakomp5 жыл бұрын
Learn from trump only during the solar eclipse!
@Medabee85 жыл бұрын
*node
@pawala75 жыл бұрын
The human ability to absorb data using light... also known as "reading".
@user-bc7cb8uu7e3 жыл бұрын
I used to work on fiber optic equipment (wrote the software, but still had to know a good amount about the hardware). The way light carries data can be much more complicated than just flipping the light on and off. The transponder I worked on used 16QAM modulation sending the data in a combination of the amplitude and phase of the light, allowing for 4 bit symbols (any one reading from the fiber provides 4 bits). We transmitted at 200 gigabits per second (per slot within the ROADM network).
@Disc0nect0r2 жыл бұрын
Same here still do, is amazing what you can multiplex it's basically the same principle just alot higher frequencies 194.1thz for example
@jdwdfw9 ай бұрын
Soon I hope we figure out how to match the visible and invisible spectrums with computer characters instead of just using one's and zeros Why continue to communicate through Morse Code when we (the devices and connections they use) can say so much more in the same amount of time Not a great comparison but think about how much better video chat is instead of just getting a page on your pager 📟 Now to factor in smell, touch, and taste ... ⚡📻📲📴🚫📶💡🚥
@morgan11685 жыл бұрын
But Linus, I thought you only stuck RGB lighting up there.
@backlogbuddies5 жыл бұрын
It finds the cancer faster
@anvthema19255 жыл бұрын
Backlog Buddies and Game Highlighter ???
@backlogbuddies5 жыл бұрын
@@anvthema1925 a joke about how rgb makes you preform faster
@triparadox.c5 жыл бұрын
Wait... wait for 2021: RGB fiber optics
@Spydy30004 жыл бұрын
"White" light is RGB
@scellyyt5 жыл бұрын
"minecraft redstone doesn't relate to reality at all" well now I have an objection
@jonathanquarles37085 жыл бұрын
I was looking for this comment, wasn't disappointed
@Burtannia5 жыл бұрын
First year of my computer science degree we learnt about logic gates. That's literally redstone. Fun experiment for you, go on minecraft and make a NAND gate. This is a gate which has 2 inputs and 1 output. The output should always be ON unless BOTH of the inputs are on in which case the output should be off. The cool thing about NAND gates is that you can use them to make all other logic gates. Try to make the following gates out of just NAND gates (either building them manually or copy and paste using worldedit): NOT - 1 input signal, output is on when input is off and off when input is on AND - 2 inputs, output is only on when both inputs are on OR - 2 inputs, output is on when either of the inputs are on XOR - 2 inputs, output is on when either of the inputs are on BUT off if both inputs are on You can keep building these up to create memory chips, processors and then a fully functioning computer! If you want to look further into it (outside of minecraft) then take a look a the website called nandtotetris.
@darwintruong41615 жыл бұрын
All those Redstone creators back in 2014 well they work for NASA. What have you been doing.
@GewelReal5 жыл бұрын
@@Burtannia or just dissasemble NAND to NOT and AND
@uss_045 жыл бұрын
Like Redstone, if you spill a bucket of water on your redstone circuits you’re going to have a bad day.
@nightowl95124 жыл бұрын
As a high school physics teacher, I never knew about the repeaters and amplifiers. Instead, I always told my students about the wonders of eternally efficient fiber cables. Turns out air-resistance can't be neglected after all eh?
@Arslan25912 жыл бұрын
It's not air resistance, it's the dispersion of light at the molecular level. Repeaters/Amplifiers also need the power to operate, so copper wires are also needed to power all the amplifiers attached to the fiber cable. The big bundle of wires in that fat cable laid in the ocean contains amplifiers and copper cables to power those amplifiers as well.
@anything_idc_2 жыл бұрын
@@Arslan2591 I was beginning to wonder how those amplifiers and repeaters got power and I also wonder what happens if 1 of them short out or something how would maintenance deal with it?
@Arslan25912 жыл бұрын
@@anything_idc_ Redundancy and failsafe methods are the first things that are in the minds of engineers who lay out such big projects. Copper wires are used to power up the amplifiers/repeaters on the way.
@anything_idc_2 жыл бұрын
@@Arslan2591 nothing is fail safe. You can go as far as you can go to prevent anything from breaking but there is always the unknown. So it sounds like a simple process easier than running telephone poles
@sakatababa2 жыл бұрын
@@Arslan2591 but dispersion is an effect of air resistance. what do you think resistance means? if you place a mesh in front of a fan you are creating flow resistance and dispersing the air. same thing with electromagnetic waves. put any molecules in front of it and it creates resistance. you and that physics teacher stun me. understanding this sh*t is not about learning facts or names it is about understanding concepts.
@leggo05 жыл бұрын
As an EE, I’m super impressed with how well this was explained!
@jello90792 жыл бұрын
E_ Engineer? What’s the other e?
@BichaelStevens2 жыл бұрын
@@jello9079 electrical
@jello90792 жыл бұрын
@@BichaelStevens Ah thanks
@delayedcreator47832 жыл бұрын
But didn't explain what the title said 😶
@lef7i9162 жыл бұрын
Eclectic entity?
@element11924 жыл бұрын
0:40 could you have possibly picked a creepier picture of a hallway?
@RealityCheck6T93 жыл бұрын
and therefore one you would really want a torch
@AnAverageJho5 жыл бұрын
Optical fibres that carry useful information over long distances are usually single-mode C-Band Telecom fibers. The "C-Band" refers to an optical window where Rayleigh scattering (the effect that makes the sky blue) and glass absorption meet to create minimal absorption of telecom wavelength (around 1550nm).
@bob-yo1tl2 жыл бұрын
or 1310nm
@AnAverageJho2 жыл бұрын
@@bob-yo1tl 1310nm is the O-band, which is the first and least efficient of the telecom bands. They use noisier Pr amps instead of the Er amps used for the C-band.
@ulpnationll2953 Жыл бұрын
@@AnAverageJho So it says that it shows 100% of total internal reflection but how are we able to see the the light travelling through it when the fibre is alone( like in some images on Google). If we are able to see the light travelling that means some light is escaping from inside it
@ulpnationll2953 Жыл бұрын
@@AnAverageJho And yah one more thing that all the light rays in the optical fibre strikes on an angle greater than critical angle ? If yes how is it possible that no ray of light is scattering less than the critical angle? Is it because of geometric structure or the way we are striking the light
@AnAverageJho Жыл бұрын
@@ulpnationll2953 There are so many things to cover with what you're saying that I have neither the time nor the crayons to explain it. Efficient fibers, called Ultra Low Loss Fibers, have 0.15 dB/km of loss only for one specific wavelength because of their core size compared to their cladding size (9um/125um) and because of the difference of refractive angle between the two. If you don't couple light properly into the fiber, you get more losses because of total internal reflection, yes. Same if you bend the fiber too much. Fibers work because of the difference in refractive index between the core and cladding. Fibers that work efficiently don't use visible light.
@brewergamer2 жыл бұрын
Ahh this took me back to when I was a telecommunications technician. I genuinely enjoyed learning about how the internet was created. I do miss it alot.
@philipcooper82975 жыл бұрын
If you ever built a tree fort, .... secret message using a flash light... Kids today: U wot m8?!
@Luis-3255 жыл бұрын
Yeah I'm pretty good at building forts in Fortnite. The last the my enemies see is the flash from my muzzle.
@RyanMakesStuffOccasionally5 жыл бұрын
Whats a tree?
@idontwantaname97505 жыл бұрын
Watch out! There's a boomer!
@meflea36755 жыл бұрын
OK boomer
@moseskarunia5 жыл бұрын
they don't even know what a real flash light looks like. all they ever see is the one behind their phones.
@edtheoldtechguy4 жыл бұрын
I am a IT consultants that became a network and fiber optic engineer and have been in the trade for many moons. Linus you should have mentioned the difference between single mode and multimode as their limitations are different. This is a very entertaining way to explain how light travels through a fiber but not necessarily how data travels or how its converted to light, we missed packets, frames, and labels, you also forgot to mention the vacuum in the fiber strands which allows for light to travel further. Nothing on attenuation or operation at 1310nm or 1550nm. Next you glanced over wavelengths possibly due to time but Wave division multiplexing that grew into DWDM and its advances to go from 1Gbps and 10Gbps to 40, 100, 400Gbps are the reason global bandwidth has grown. Then 0 layer switching, it is what allows for light to be switched on demand without physical intervention. You could spend half an hour on that alone, Dont even start on ROADM's LOL. Also the chemical reaction discussed in helping light travel further only works with certain types of fiber strands, the rest need a physical regeneration point closer, converting light to electrical then back to light again, about every 80 or so kilometers. The physics of light energy at the output level disburses or degrades at this length, even in a vacuum or in a perfect reflective environment. So all major telecoms depending on the type of fiber whether Corning Leaf 0 dispersion have to plan their repeaters carefully. You never mentioned ITU standards like G.651 or 652. Again possibly due to time. It's actually a hodgepodge of network cable out there all working differently at different lengths of regeneration points. The advances in Switches and Routers has allowed for full use of these hodgepodge networks. By the way I have been a loyal fan for years now, and this subject should not be a tech quickie but I will say this was an admirable go at it, and a very good explanation. I know veterans in the field that could not explain it to a customer as simple and as graceful as you did. As I recently became a KZbin creater I know how hard this is. Props to you and your staff Linus!
@sliwka6212 жыл бұрын
The channel is called Techquickie for a reason.
@edtheoldtechguy2 жыл бұрын
@@sliwka621 I am sure Linus would appreciate you trying to help him. Unfortunately, the differences between single-mode and multimode are so simple they can be summarised in a single sentence or a few sentences if you want more context, is that not quick enough?
@sliwka6212 жыл бұрын
@@edtheoldtechguy That's true but I got the feeling that he was talking more about long distance transmissions and for that we only use SM. There are some not so smart clients who want MM lines kilometers long but they are very few in between.
@edtheoldtechguy2 жыл бұрын
@@sliwka621 Linus began the discussion with what fiber was. A sentence or 2 differentiating MM and SM and how they both conquer long distances, would have been stellar. Then adding the limitation of LED-based light vs Laser and why SM is used for greater distances would have clinched it for me. By the way, multimode is used in metro areas to tie buildings together so while it makes no sense as a interstate communications medium, it is used many times in dark fiber loops that connect buildings like hospitals together. Not my suggested way but it is the cheapest. MM does achieve great distances when compared to copper. So by skipping it I think the tech quickie lacked. Linus is not a network WAN engineer yet I complimented him on his effort and even told him that many veterans could not done as well.
@keevanorosco30695 жыл бұрын
Job Recruiter: what are your qualifications? me: i watch Techquickie Job Recruiter: you're hired!
@andromedahavice94785 жыл бұрын
No joke, this basically happened to me. I watched a lot of Linus Tech Tips videos and then ended up getting a job at a PC shop based on my knowledge gained through these videos
@jerrystuarts99175 жыл бұрын
Linus media group: "great news, guys! We are hiring again"
@kentoscocos52385 жыл бұрын
@@jerrystuarts9917 Linus HQ : " so...tell me how do yo know about technology?" that guy: "uhh,by watching your videos?" Linus HQ: " welcome to Linus group!. here's your papers and we expect you to came tomorrow. speaking of going to work,we recommend you using uber. with 20% off by using code hiredatlinus"
@MuitoDaora5 жыл бұрын
"Look at light at molecular level". Oh no!
@fqidz3 жыл бұрын
what
@nobitanobi34753 жыл бұрын
as a wave or particle then ?
@user-mn2gt4ct3l3 жыл бұрын
that doesn't make sense
@prismaticfalcon3 жыл бұрын
@@nobitanobi3475 hmmm, I wonder
@alves64652 жыл бұрын
So, do you need light to see light on a moleclar level?
@EastyyBlogspot5 жыл бұрын
I had a endoscope and a colonoscopy and i was afraid they would meet in the middle
@KeanoMUFC15 жыл бұрын
where is the middle
@bradhaines31425 жыл бұрын
somewhere between the intestines and stomach
@2ndAveScents5 жыл бұрын
I always wondered why the other one wasn't called an endoscopy
@Charlesb885 жыл бұрын
I always assumed the endoscope was the scope the doc shoved up your Endo.
@blueeyedbaer5 жыл бұрын
Endoscopy is a general term for an examination where an endoscope is used. It can be esophagogastroduodenoscopy for the upper digestive tract, colonoscopy for the lower intestines, cystoscopy for the bladder, laryngoscopy for larynx, rhinoscopy for nose, bronchoscopy for the airways and some other endoscopies for other organs.
@bbasmdc3 жыл бұрын
This is a great basic explanation. There are a few inaccuracies, however that could be corrected without making this explanation longer or more complex. Modern optical fibre does not make use of total internal reflection - we could never really go much further than a couple of kilometres if that was still the case. It actually uses a refractive index gradient (as opposed to a hard boundary) to guide the light back into the fiber. Check out the difference between step index fibre and graded index fiber. Repeaters vs amplifiers. Hmmm…to be honest these two terms are interchangeable, but they both just mean “amplifiers”, and more specifically “optical amplifiers” (like EDFAs, SOAs or Raman amps). You may have meant to compare amplifiers to regenerators - which digitally recreate the signal, as opposed to an analogue amplifier. Regenerating signals is expensive compared to just amplifying them, so the goal in modern long distance communication is to send the signal at the highest possible data rate as far as you can before you have to resort to regeneration. But you may still amplify that signal about every 50-80 km. Just to note that optical fiber was used in endoscopy way before it was used in communications, at least in terms of commercial products. Endoscopy dates back to the mid 1800s using hollow tubes, but fiber endoscopy was invented in 1957. The use of fiber for communications was triggered in 1970 when two technologies reached a sufficient state of usefulness that commercial products could be created. These two technologies were low loss optical fibre and semiconductor lasers.
@ShawnT0072 жыл бұрын
always wanted to see Nottingham
@uniqhnd235 жыл бұрын
It's amazing how accurately you've portrayed this information in such a short and simple manner
@seruputhirudan25465 жыл бұрын
Why do I learn more in KZbin than in my school.. ....?
@kentoscocos52385 жыл бұрын
because curriculum need hella time to adapt,while us,the youths,just use internet, neighborhood,and many more
@yohanwang65185 жыл бұрын
This is actually taught in AP Physics II. We work out how to solve for when total internal refraction happens.
@seruputhirudan25465 жыл бұрын
@@yohanwang6518 ?????
@Videohead-eq5cy5 жыл бұрын
If you didn't learn total internal reflection in your school you're going to a shit school
@seruputhirudan25465 жыл бұрын
Well that's good to hear..
@Charlesb885 жыл бұрын
Thanks for shedding some light on this technology.😄
@jdmnissan5 жыл бұрын
*Apple* we are very excited to show you our new iPhones *Linus* but how fiber works *Me* hmm let's watch linus
@triparadox.c5 жыл бұрын
Apple: We're very excited to show you a new way to waste your money!
@circuit105 жыл бұрын
@@triparadox.c Yep
@NtvBulgaria5 жыл бұрын
Now I know what inspired redstone in Minecraft. :D
@azarilh23555 жыл бұрын
I think it's just a coincidence, Notch pulled in Minecraft a lot of irrealistic stuff, like azure diamonds to say one.
@xehP5 жыл бұрын
Azarilh you think it’s a coincidence? It was intentional, redstone is just Minecraft equivalent of electricity.
@azarilh23555 жыл бұрын
@@xehP "Equivalent" I studied this stuff at school, it's not "equivalent" at all, it's just similiar.
@--Paws--5 жыл бұрын
Redstone is more like gunpowder and when its used, it carries a charge. It also sounds more like electrical engineering than fiber optics. What it makes it sound like redstone is because Linus just mentioned repeaters.
@xehP5 жыл бұрын
Azarilh wow you have education? Damn, I’m really jealous... it’s the equivalent. You sure you studied electrical engineering? Assuming that’s what you’re referring too.
@bradenboyko5 жыл бұрын
Redstone repeater: hold my beer
@prich03825 жыл бұрын
Also good to note about how light entering at different angles which limits the bandwidth possible as pulses have to be timed so no signal that is meant to arrive later instead arrives too soon
@reprevise4 жыл бұрын
missed opportunity tho at 0:11, could've said "works in the same LIGHT" hahahahaha I'm so funny
@Fools_Requiem5 жыл бұрын
When he said treehouse and transmitting messages, I thought he was going to go the cups on a string route, not morse code..
@danstrikker64654 жыл бұрын
Same
@Kusagrass Жыл бұрын
Did I miss the source for the map @ 3:45? I hope for more educational videos to include citations in the description!
@hiddenmjolnir66602 жыл бұрын
They made repeaters from Minecraft a real thing. Smh
@thantie15 жыл бұрын
actually a great question, i have wonderd this a lot of times. Thanks for awnsering this question for me
@kenyandweeb79985 жыл бұрын
0:42 I expected a jumpscare there *sigh*
@albert3285 жыл бұрын
I was so ready to ALT+F4 at that time....
@kenyandweeb79985 жыл бұрын
@@albert328 haha
@Shark-kawaii1044 жыл бұрын
@@albert328 that is creepy as fuck
@Laner73 жыл бұрын
0:44 “too dim to *MaKe OuT*” Pfft like that stops anyone
@Master_Therion5 жыл бұрын
Over long enough distances the signal weakens? Is that because fiber optic cables are always eating light? That must be why they're so thin.
@bradhaines31425 жыл бұрын
new diet!
@ShinAkuma5 жыл бұрын
The phenomenon is called TOTAL internal reflection but in actuality it's ALMOST TOTAL internal reflection. Some portion just passes through the glass. That's why the fiber cable itself appears to glow throughout it's length, if there was TIR, light would only appear at the end.
@Stalka425 жыл бұрын
15 blocks then you need to place a repeater
@feynstein10045 жыл бұрын
HA! 😊
@Xnoob5454 жыл бұрын
@@Stalka42 amplifier
@TomKenyon18784 жыл бұрын
I’ve been installing fibre for around 2 years now. it can be very challenging at times but I love it
@jaceporikos Жыл бұрын
I got a job installing optic fiber in German , any tips ; I am starting next month
@CLabmusic5 жыл бұрын
Linus's annual physical is not the image I wanted in my head this morning
@kichigan13 жыл бұрын
The simplest, mos informative explanation I've heard so far. Thanks.
@ricardooow5 жыл бұрын
This is true but not the full story about fiber optic networks, nowadays to use every space there is inside the fiber, multiple carrier frequencies are used (different colors). This is then multiplexed together and demultiplex at the end which is often done with a simple n-th order filter, giving the individual 1's and 0's back for each wavelength.
@Firefly56sminecraft5 жыл бұрын
THAT was a good segway at the end. Good job Linus!
@user-ld7vl9sk4s2 жыл бұрын
2:58 thats exactly redstone logic lol
@BuildTimeMC5 жыл бұрын
If you rename the video to how a Minecraft repeater works you'll probably get more views
@melon19713 жыл бұрын
Comparator *
@carxeco5 жыл бұрын
Feels I’m 16 and back in my a levels physics lesson
@nameless1913 жыл бұрын
i am 14 and currently watching this instead of my as level physics
@mrSirfreak2 жыл бұрын
your explanation for the repeater was good but you didn't tell how a regenerator works using the dcc channel ? and what transport equipment is being used (ocn) the distance is not determined by the fiber but by card in the transport equipment (ocn). what type of fiber are using single mode or multi mode?
@yaoloh83025 жыл бұрын
I know you've done tons of terrible segway before But this one tops it
@nicostein98755 жыл бұрын
Just saw it, and now I need a doctor.
@nathacle5 жыл бұрын
Not to take away how bad it was, but that is an equally awful way of spelling that word.
@idunno4025 жыл бұрын
Segue*
@timothyswindell49245 жыл бұрын
Segway is a mode of transportation for lazy people. It is not the same as a the French transition "segue." Please learn the difference.
@THEPASHKA5 жыл бұрын
Learned more about fiber optics in 5 min than 1 year of IT Course.
@koogs965 жыл бұрын
Multiple light waves can be sent through one fiber and at amplification points the light gets separated into the individual waves amplified beyond the necessary strength then subsequently reduced in strength to a more precise signal strength at which point the individual waves are then re combined or multiplexed and sent back through the fiber on the other side.... some of these systems are fully reversible others are directional depending on its function.... this gives us the capability of pushing over 400gb/s over a single fiber run
@sparky2008sparky8 ай бұрын
I worked in this field with EDFAs before the telecom bust. Each fiber in a 40km link could handle 80Gb/s through muxing different wavelengths of light onto the single fiber. We developed 32 ch systems that had EDFAs(erbium doped fiber amplifier) which used a 970nm laser pump to amplify the optical data stream, in phase, by 16dB. The technology was pretty amazing even for an EE like me.
@WarriorsPhoto5 жыл бұрын
I didn't know about the differences in the glass layers. I knew there were many layers of glass. Thank you Linus.
@Technology_Apps_AI3 жыл бұрын
Just a little correction, the total internal reflection is a geometric property of light. Scattering on the other hand is actually physical property.
@ElNegus99855 жыл бұрын
0:23 Linus hologram shaking.
@NicosLeben5 жыл бұрын
You could also have mentioned what type of light and which wavelengths get pushed through the optical fiber. And that there can be an issue with light representing a single bit bouncing around in different angles resulting in blurry bits instead of hard on/off edges.
@rgl1682 жыл бұрын
Remember this is Techquickie; most of the target audience wouldn't have that level of understanding
@manthanrao26855 жыл бұрын
Thanks for the revision Linus, my gces are coming up!
@shamtradtam37692 жыл бұрын
Having studied communications & signal processing at the undergraduate & postgraduate level, I'm happy that this topic is gaining public exposure. I have to point out that wireless signals (4g, 5g, wifi, bluetooth) also use light to carry data, these use the microwave, while fibre optics use infrared. Both are invisible, so I don't know why you just explained fibre optics alone
@Rose-ez9vf5 жыл бұрын
*but can it fix my broken heart Stacy?!*
@HungNguyen-pf8zm5 жыл бұрын
F
@ChucksSEADnDEAD5 жыл бұрын
Gamers rise up 😤
@andydbedford4 жыл бұрын
Please make a video on how Water could be used to store data. There is enormous research going into this.
@xfire1145 жыл бұрын
Can we all just take a moment to reflect on the fact that we all live in a time where humans control light to transfer data?
@flameshana95 жыл бұрын
And we use it to transfer porn.
@vanergr5 жыл бұрын
I am an electronics engineer and on optics communications with repeaters is not just latency but bulk when we talk about sea cables but the benefit works on land cables also. A repeater is a box with expensive electronics witch needs power to operate. An optic amplifier is backed in the cable so it's part of it with the benefit of no bulk, quicker deployment and less components to fail in the sea and need to power it.
@IndiCoder5 жыл бұрын
Let me watch the Apple event first. Liking this video as of now btw
@JM-yx1lm3 жыл бұрын
And who are you?
@elbozo57233 жыл бұрын
scat you verified normie!
@bedi092 жыл бұрын
This is a great video for introducing the concept. Thank you
@lunny37152 жыл бұрын
Light doesn't "carry" data, light just goes in a pattern the input device is built to recognize. Since light is really fast, the command would get proceccsed *INSTANTLY*.
@Fatty4205 жыл бұрын
LTT 2039: We just bought and overclocked a colonoscope! Time for Linus' annual checkup!
@ElectricityTaster5 жыл бұрын
Good way to plug his underwear.
@lexvanham61045 жыл бұрын
Let's watercool it
@jeinnerabdel5 жыл бұрын
Have you guys in LTT consider making your own "brilliant" service with educational videos that can match pensums from universities? This video explains the basics that in some courses take hours to get explained. I don't mean creating tutorials, I mean, LTT UNIVERSITY ONLINE!
@mantheking2 жыл бұрын
@Techquickie Very interesting, thanks. A question: Considering how fast signals through fiber optic cables can be, why did video and audio systems prefer HDMI and/or DisplayPort instead of fiber optic cables?
@kevinjohn95792 жыл бұрын
I think that setting up the equipments to produce and read the light signals would be expensive for average consumers. And also idk if you remember it but in one of his videos last year or 2 years back, he used a thunderbolt/hdmi cable using fiber optic technology since his PC and his monitor is very far apart and there are no regular hdmi/thunderbolt cables that can transmit signals over that long distance
@NATAWS92 жыл бұрын
Fiber advantage is distance of transmission, not latency. Latency only becomes a problem when repeaters get involved and this is required when signal level degrades, which is faster in copper. For short distances, this isn't a problem. Also, HDMI has more on it than just digital signals. It also has auxillary power which cannot be transmitted over fiber. Audio systems use electrical signals that are amplified by speaker amplifiers. Before the amplifier, optical cables are possible but don't provide any benefit. After the amplifier, optical cables are not possible because they would lose all of the wattage needed to power the speakers.
@mauritsjanssen71765 жыл бұрын
2:34 This is not the whole story. When there is total internal reflection, not 100% is reflected. The wave which is not reflected is called the Evanscent Wave. Evanescent waves are formed when sinusoidal waves, eg light waves, are reflected off an surface at an angle greater than the angle where Total internal reflection occur.
@flameshana95 жыл бұрын
I totally understood that. Really. Okay not really.
@hkoizumi31345 жыл бұрын
I remember when I was a kid in early 80s, I shined a flashlight through a metal tubing. I've noticed the light would seem to bounce off the reflective walls in the tube making the light shine bright to the other side. I was thinking maybe I could use this to connect between two places with long piping and use it for instant Morse code without using radio. I was a smart kid back in the day. I don't know what happened lol
@jameslloyd29575 жыл бұрын
I did not know I needed to know this but it was actually really interesting
@crvz78345 жыл бұрын
3:00 he is speaking the minecraft redstone languange Edit:thanks for the 11 likes:)
@gigibecali6995 жыл бұрын
I tip my hat to you,one legend to another
@crvz78345 жыл бұрын
@@gigibecali699 ohhh shittt
@timecubed4 жыл бұрын
lol
@ldchappell12 жыл бұрын
If you have a fiber optic audio cable, bend it so it goes around your head and look into the other end you can see the back of your head. Your can also use it to peek around corners.
@HazMean_26115 жыл бұрын
first time that video notification popup within 1min of upload , usually it pop after 10min 😂😂
@HazMean_26115 жыл бұрын
@@Drdrew1234 I understand n can read english, just not to fluent in speaking, like 2-3 word per year except for brand names 😂😂
@SylasTheGreat5 жыл бұрын
Why is this funny?
@s1unknown5775 жыл бұрын
LTT - science , news and tests. Techquickie - Things you probably didn't know.
@mrgallbladder5 жыл бұрын
I hate when somebody throws a wrench into my pudding!
@BobHolowenko5 жыл бұрын
OMFG, he just talked about light and shiny (reflective) objects and THAT was the best sponsor Segway for brilliant he could come up with???
@ripster75 жыл бұрын
Great, now can you explain why I've been waiting for 5 months to have my fiber installed to my house?
@Bacon_Pancakes5 жыл бұрын
Setting up fiber optic networks is by far the best job I've ever had!
@Max_The_Sniff2 жыл бұрын
3:13 exactly like minecraft
@claudiugusoi5 жыл бұрын
Interesting choice of having a photo of a SonoScape endoscope. I was really wondering how well it performs in Canada because I used to sell them in my country and nobody heard of them. I also assume it was just a random photo of images search.
@ludapecurka1025 жыл бұрын
Im fiber optic technician So i know :)
@matsv2015 жыл бұрын
You know the one rather major flaw in the explination?
@selenagomez92903 жыл бұрын
Thanks a lot for explaining it so well my concepts are cleared now thAnks once again.
@R0adx5 жыл бұрын
It's so obvious that everyone is watching the apple event right now lol
@NewLondonMarshall5 жыл бұрын
xD
@allansh8285 жыл бұрын
Apple Event gets even more cringing this year.
@NewLondonMarshall5 жыл бұрын
@@allansh828 Ikr! The amount of times they say "We're so excited for" or "I'm so excited for" is absolutely stupid!
@dumplingsuwu6691 Жыл бұрын
His guy is a legend! His energy and simple beginning is top tire ❤❤
@aaalm87245 жыл бұрын
Love it.. good work linus with information.. you should participate in some historical episode explaining computers and electronic engineering 😉
@KenchiManok Жыл бұрын
Dr. Linus, PHD MD if you could only be my college teacher, I would have finished my ECE course and never switched to something else.
@Mr.Meeseeks0245 жыл бұрын
Why is no one watching apple live stream? Because "Insert segue to our sponsor"
@mizunochie5 жыл бұрын
Because most of us are peasants.
@Mr.Meeseeks0245 жыл бұрын
@@mizunochie I tuned in for 1 minute, the energy is sooo low ROFL, and somehow 1.8m people are still watching
@danman98475 жыл бұрын
@@Mr.Meeseeks024 yeah shits a joke lol
@pekkapeltola26425 жыл бұрын
And that evet was bad. Nothing new really
@Mr.Meeseeks0245 жыл бұрын
@@pekkapeltola2642 it was terrible, at least the 60 seconds I saw.
@petenielsen66832 жыл бұрын
Watching this again in nearly 2022. Forgot what Linus looked before COVID-19.
@dan_loup5 жыл бұрын
It's like RGB lighting, but really, really fast.
@saskiavanhoutert31905 жыл бұрын
Thanks again Techquickie for your explanation again, like to hear more, kind regards
@vineethsai15755 жыл бұрын
I thought you will say, "I know where the doctor got his degree,..... 'BRILLIANT.ORG'"
@stephenber21145 жыл бұрын
2:59 it's like redstone's signal strength is 15 blocks and a repeater re outputs the signal! Genius
@RailfanSrikrishna5 жыл бұрын
In future I believe UV-Ray and X-rays could also carry data
@KingJellyfishII5 жыл бұрын
UV probably but Xrays can't currently be sent through fibers like visible light can. Although, yes, they could transmit far more data than visible or IR (which is more common right now)
@vaibhavhayaran5 жыл бұрын
UV scatters alot so it's impractical ..and x-ray..nope! Unless you want cancer . . . Although UV also causes cancer
@KingJellyfishII5 жыл бұрын
@@Kiba114 I disagree - it's a legitimate question, because x-rays can transmit far more data than IR. I hope you're not a rtfm person....
@KingJellyfishII5 жыл бұрын
@@Kiba114 I'm not saying it will happen or should happen or anything I'm just saying that it's a legitimate question to ask why it hasn't/will not happen.
@KingJellyfishII5 жыл бұрын
@@Kiba114 I'm just trying to defend the original commenter, and I know that it's just one Google away but I'm kinda running out of patience so I'm going to end the argument here.
@lolnahnvm2085 жыл бұрын
Just scheduled a colonoscopy yesterday. Thanks for lightening the mood/slash making me think about it again, Linus.
@Nick_1175 жыл бұрын
...And important data... Me: MEMES
@urcasualguy42642 жыл бұрын
Ma man's gonna teach me this for my exams!! HELL YA!
@seasesh40735 жыл бұрын
Linus Minecraft playthrough when? Watch out mumbojumbo, here comes another professional
@shaansingh60485 жыл бұрын
bro linus vs mumbojumbo redstone would be the most lit thing ever.
@bsperoz5 жыл бұрын
1:00 I HAVE THAT! And they are the beautiful when you get the ones that change colors...Even all the way down the street at night!
@zuccyboi94615 жыл бұрын
I want riley, Alex, and James tech tips
@movement2contact5 жыл бұрын
I want money.
@TechXSoftware5 жыл бұрын
Nice that finally shed some light on the subject
@Felixkeeg5 жыл бұрын
You should rename the video. This is more along the lines of "How does fiber optics carry light"
@sakatababa2 жыл бұрын
before watching even a second of video, just in case he gets it wrong, answer to the question is very simple. light is electromagnetic wave, there is no difference between light, radio wave, wifi signal and electrical signal that goes through your cat5 cable. it is all the same thing, coherent movement of photons caused by electrons jumping from orbitals. trick is to keep the wave coherent in a sea of other influence. you either confine it in a physical media (tube, wire, etc) or push enough power and hope it will reach its destination without too much noise. data part is just binary information, ones and zeroes all the way baby, depending on the protocol used (think of it as transmission language) it will either use some form of pulse modulation (there is signal vs there isn't signal), amplitude modulation (higher amplitude vs lower amplitude) or frequency modulation (you get the drift, right?). there are some other ways, you can combine methods etc, but lets not get this too long. and, that is it. remember kids, light is more powerful then that 5G by a factor of 10.000, now go share that fact with your tinfoil uncle.
@shrey_anshu84523 жыл бұрын
Anyone from INDIA
@hariharish71053 ай бұрын
Yeah
@pneumonoultramicroscopicsi2136Ай бұрын
Kerala
@xgrubby1276Ай бұрын
BROOO SAMMEEE@@pneumonoultramicroscopicsi2136
@DeepakSingh-gm9th5 күн бұрын
😊
@paulfong904 жыл бұрын
Another LTT video used for my GCSE Physics lesson, cheers guys!
@trafalgarlaw99195 жыл бұрын
Okay! But How Does LIGHT Carry Data?
@DarthDweeb5 жыл бұрын
Such a smooth segue. Best one yet.
@Xenoray15 жыл бұрын
Me: Fiber sounds cool Germany: Nah, Heil Copper!
@AK-hx2dx5 жыл бұрын
True i live in a City in Germany with a population of 500.000 people and still only have VDSL 50 Mbit/s😔 .