20.000 cables under the sea (Documentary about the huge fibre optic cables that connect us, 2010) 

Great documentary. It's interesting how much technology and work has to go in to global communications that we can take pretty much for granted each day. Subbed to this channel.

This might be more interesting, for some people, if some of the diagnostic procedures were explained. For instance, @7:02 , that instrument performs Optical Time Domain Reflectometry (OTDR). It sends pulses of light down the fiber optic cable, to the break. Then, the light is reflected back. It uses that time difference, to calculate where the break is. This is also done on electrical cables. (Except that it’s called TDR, instead of OTDR.) Electrical pulses are sent down the cable and get reflected back. Again, using the time difference, the ‘distance to fault’ (DTF) is calculated. If you have a mile of buried cable, with a fault in it, it makes sense to only dig up the area, we’re the fault is. Another use for TDR, is when trying to determine how much cable is left, on a cable reel. If you need to run 150’ of network cable, but don’t know how much is left on the cable reel, most people will just grab a fresh reel. (Who wants to run short and have to run it twice, right?) This becomes wasteful and, soon enough, you’ll have stacks of partial reels, of unknown length, laying around. Attach a TDR instrument to it, and you’ll know exactly how much is left.

Never realized there was so much underwater cable for the internet. Documentary was very informative and opens one's eyes as to what goes in and out of our computers around the world. Very well done.

I love the way this documentary is covering all sides of the subject from the history and the various people working on a typical given situation. Good work, will be looking into other of your documentaries !

Finally. I have been searching for a documentary about this. Thank you. Now I fully understand. if only they also showed in more detail the cable landing stations and how the cables connect to ISPs

Fascinated to see an actual repair operation. Amazing !! Such a detailed, well directed documentary. I know so much more about fibre optic cables that connect us

Thanks for the documentary, really appreciate your work and of those who work around the clock so that the world can stay connected.

This is a fantastic documentary. Most people believe world internet works on satellite communications. People should watch this documentary so they would understand how much work and resources go into making internet possible across continents. This also helps explain why internet is not free. Thanks for uploading.

Awesome documentary. In just over forty minutes, I learned how extensive the undersea fiber optic cable system is, the history of undersea cables, how they laid and repaired, and also how fiber optic cables are manufactured. All that in a 2010 French documentary that remains fresh and relevant in 2020. Bravo.

Simply amazing! Thank you for making this!

This was absolutely fascinating. I loved the detail in which the producers of this educational documentary went to,and we actually need more similar videos like this! thank you for uploading it for the world 👍

Proud to be an Fiber Optics Engineer.Its been 10 years of achievement and satisfaction.

What a lovely film, with tons of great footage and explanations!

im a wireman i love the thought of being the first guy to attempt to lay a transatlantic cable. pretty awesome.

Thanks appreciate your time and effort you put in to these videos

I think about these cables a lot. I like the numerics driving convergence. It is fun to think about while sleeping/waking. I picture this standard keyboard in my head, except each key is a spherical screen which can project a display. Even by just sequencing colors together, the standard Clavichord is enhanced and even is given analog features, it is a cool idea I always think about in my head.

That this first graphic does not show the true line of the first cable to cross the Atlantic. It did not go from the UK to the United States. The first cable was laid by the Great Eastern and went from Valentia Island, Ireland to Heart's Content, Newfoundland. The cable was landed in Heart's Content in 1858.

Fascinating. I find it amazing how much bandwidth is in those 4 little strands. Truly amazing.

This was super in interesting! Much love! More info for everyone!

What an amazing quality! These 43 minutes were incredibly interesting.

Very educational. Easy to understand the basics of this problem.

GREAT video! Very informative.

People are always complaining about RU-vid’s suggestion algorithm, but for me more times than not it turns out to be something rather interesting. I still get dud’s sometimes but I don’t click on them I just keep scrolling down.

Excellent.....Doc. Awesome stuff... Thanks very much...!

Really interesting and great documentary ever for Telecom Field

Amazing documentary!!!

Awesome explanation of how submarine cable works...expecting more videos like this

Outstanding world class documentary.

This is an excellent documentary. I enjoyed it very much!

Fantastic documentary!

Great documentry ......A big thanks to the team becase you people our life becomes way too easy.......

that is perfect what im wanted to know more specific and i tried to find. thanks its so easy and good point mentioned tecnically to knows how under sea fiber cable work for sustain de word wide web.

Excellent quality documentary, thank for sharing

No fake drama. Old school documentary, good stuff.

Great documentary. Very informative about the undersea cables.

Very interesting thanks for posting!

40:44 the splicers. Most impressive!

Very interesting thanks for putting that out there

these documentaries are so nice , daily dose of reality

I remember working at lucent technologies and being presented with videos of the trans Atlantic fiber lines being dropped from the bow of a large boat. Very cool.

i never thought it was this hard to keep those cables working, & all tht manufacturing work & research

Excellent doc. Makes me wonder how much competitor cable sabotage goes on.

This is so fascinating!

awesome documentary!

Excellent documentary.

Very good and interesting information. Thanks for sharing.

This is great vedio...how we enjoy internet..amazing

This video clearly states...NEVER EVER GIVE UP.💪

Recommend: Pouring light into a bowl?A great documentary,thanks 4posting :)

Very nice documentary!

Thanks for the enlightenment? Very interesting and informative.

Thank you a ton for bringing such video🖖🌈🎉

This is almost science fiction in comparison with laying the 1950's transatlantic cable, especially the Sea Mouse (19:39) with it's fibre optic fur. Even more astounding was the 7 years it took to fix the 1st cables break compared with this crews 14 day fix.

Holy the light at 15:46 following the water is crazy.

nice, this is how i can play counterstrike and runescape with europe from canada

Currently undergoing it certification. I learned about this In a lecture and I'm fucking blown away. I had NO IDEA all of this was happening when you go to RU-vid

at the end when he said "maybe we got some measurements incorrect" i felt like someone is going to be a dinner for the sharks 😂😂

Fantastic! I've often wondered about these underwater cables and how are they possible. Now I know a tiny bit of it....and know it isn't magic. Damn near though!! Thank you all concerned in this .

Wow! Now that's Maintenance!

Amazing and Educational

Nice job. Just a handful of people control the world's communications. Scary and brilliant at the same time. Can you run one of those directly to my house? That would be great, thanks.

Epic Education! Ty

An excellent documentary but the intrusive music has likely chased many a viewer away!!

That's what I do in NYC Subway system for cell wifi communication. Love this work. 30 years

Nice film. I work in application support for the software that manages these networks. I've worked with Deutsch Telecom many many times. Fascinating to see what the guys on the boat actually do. I believe the guys who have the skills to splice these cables are very well paid. I'm network engineer by trade, and a boat guy for fun. This could be my next career move!!

Absolutely fascinating and so informative thanks for posting

great job!

Thanks for sharing this informations. 👍

Im impressed with that little machine that Splices the Fibers. Sure makes things a lot easier.

Thamks a lot.

I worked on the CS Long Lines for a while.

It’s like the US Coast Guard’s unofficial motto: “You have to go out but you don’t have to come back”

This is really interesting. I'd be curious about some of the financials as far as who owns the cable(s) - what the rental rate is / etc etc

Great upload hello from Australia

nice documentary

14 Days , error 33 and error 34 Closed ! Great JOB ! Great Video and production ! They are called " splicers " , you showed a very nice fusion splice system if I am not mistaken ! I learned it several decades ago with the USAF telecom career field. Nice 20 year run. Again - Great Video !!

Documentary segues into talking about fiber optic cables with a V.92 analog modem training sound.

I wonder if the repeaters have photonic lounges and restrooms to help refresh them on their journey. Perhaps some small viewing windows to take in the under water scenery while they enjoy the short stay abort the torpedo shaped refreshing stations. One could only hope so

I lay these networks once they reach land to fiber hubs hours away from the beach. Very interesting to see the longest portions of the project on the ocean.

It’s fun splicing, just tedious that’s all, I clean/wipe the fiber often before fusing the 2 ends together 👍

Very interesting.

Great report ! 👍

40:30. Holy shit this is amazing.

Oh, this is about the legendary SeaMeWe3, the longest cable system in the world. 39000 km long, it goes from Germany all the way to Japan and Australia, connecting a whole bunch of countries in between.

In the middle of laying cable project when saw this video and been in Teliri as well when she doing cable laying project in Papua Indonesia for Palapa Ring Project.

11:57 fuckinghell. the 3D effects on that spinning watch is just incredible on a normal phone it looks like it's proper 3D. Wow that technology is mind-blowing!

Amazing. Light beams have been used as tools for decades. Travelling in clear tubes for years. Who thought it was possible to put data into light. I mean that literally. What person or team of people thought that possible.

Eating on this boat is a dining experience. Out on the town - in a boat.

The displays with depth (autostereoscopic displays) have the advantage that you don't have to wear glasses but you still have to keep your head exactly horizontal to the screen for the effect to work and it's a bit wavey, the images don't appear very solid and the resolution isn't all that great. I have a better idea. 3D shutter glasses, but with head tracking. The disadvantage would be that you have to wear glasses but the big advantage is that you would get the parallax effect same as looking out of a window and be able to move your head to look around virtual objects without having to stay horizontal.

Wow to think that this is old technology is mind boggling.

pretty interesting

Lots of valuable information :) and is strange how cabling is changing to allow more data but more chance of isolation when it comes to power requirement and re-usability etc. Whats really interesting s most of the worlds data runs through about 5 international routers (maybe more now) that if removed or taken out a lot of stuff will cease to work, Imagine being in an apartment complex and only being able to communicate with your floor as there is no elevator or stairs to any other level you know it exists but can't do anything haha Trawling should be banned, way more viable options or cool want to do it buy lake breed fish/crabs etc and then do it, we do not replace enough of what is destroyed or recycle enough

amazing

Our communication systems has to be one of greatest wonders of the world.

40:40 "dust free space" might be giving that tent a bit too much credit.

Not even 0.00001% of the population is aware of the technologies that make today's magical communications possible.

Using light as the transfer medium isn't just genius, its damn near a miracle.

Fascinating information.

Way too mind blowing 😁😁😁😁😁😁😁😀😀😀😁😁

I remember about the huge amount our family had to pay as fine to telecom dept for rupturing a sub-terranian optic fibre cable when we used an excavator to do some digging job.