• Subnautica - #5 - Seabed Home - Let's Play / Gameplay / Construction

    This looks fun, so let's play Subnautica. +++++ GAME LINKS: Website: https://unknownworlds.com/subnautica/ Steam: http://store.steampowered.com/app/264710/Subnautica/ +++++ GAME DETAILS: Descend into the depths of an alien underwater world filled with wonder and peril. Craft equipment, pilot submarines and out-smart wildlife to explore lush coral reefs, volcanoes, cave systems, and more - all while trying to survive. +++++ STUFF+ LINKS: YouTube: http://www.youtube.com/subscription_c... Twitter: https://twitter.com/OStuffPlus Patreon: https://www.patreon.com/StuffPlus Email: (See about page)

    published: 09 Feb 2018
  • Construction Support Vessel "Seabed Supporter" Docking

    published: 19 Feb 2018
  • Deepwater Enabler - Next generation offshore construction vessel

    National Oilwell Varco (NOV) and ULSTEIN are proud to present the next generation of modern offshore vessels. This is the standard for future offshore construction. The vessel platform used is the ULSTEIN designed Deepwater Enabler. A flexible design ready for any challenging offshore operation!

    published: 26 Jun 2013
  • From the seabed to the cloud: constructing the most advanced cable laying vessel

    The story behind NKT Victoria, the most advanced cable laying vessel.

    published: 30 May 2017
  • Scientific Deep Sea Drilling and Coring Technology

    The video shows scientific ocean drilling and coring technology. Scientific Deep Sea Drilling Vessel CHIKYU is the state-of-the-art research vessel exploring the deep earth by sampling, measuring and monitoring operated by JAMSTEC. The Earth deep below the seafloor contains a unique record of our planet's evolution and structure. Scientists study the sub-seafloor to better understand Earth's components, history, and phenomena. This research helps us answer questions about fundamental aspects of our planet such as the environment, the biosphere, solid earth cycles, and geodynamics. 00:00 The process of deep sea drilling 04:04 Rotary drilling 05:23 Riser drilling system 07:30 Coring procedure 10:38 Core sample processing More about the research vessel CHIKYU, http://www.jamstec.go.jp/chik...

    published: 13 Nov 2013
  • Puffer Fish Creates This Blue Water Art ~: }

    "This video is for educational purposes" !Quick example of the beauty we can find in those BBC-Earth new documentaries. The amazing little puffer fish capable of creating elaborately designed 'crop circles' at the bottom of the ocean as part of an elaborate mating ritual. The behavior was first documented by a photographer named Yoji Ookata who later returned with a film crew from the Japanese nature show NHK which later aired an episode about the fish. Even as articles bounced around the web it was still difficult to imagine how a tiny fish could create such a large design in the sand, even when staring directly at photographic evidence. Finally, video has emerged that shows just how the little guy delicately traverses the sand in a rotating criss-cross pattern to create a sort of subaq...

    published: 03 Apr 2017
  • Underwater Launches To Eve's Seabed And Back - KSP Reddit Challenge

    My super hard mode submission to the recent reddit challenge where I launch from below Kerbin's oceans to below Eve's oceans and back in a single launch! https://www.reddit.com/r/KerbalSpaceProgram/comments/3wmvj4/weekly_challenge_week_108_the_jatwaa_challenge/ You can now follow me on Twitter! https://twitter.com/Hazard_ish Kerbal Space Program is a fantastic rocket building simulator that I would highly recommend purchasing if you haven't already at http://kerbalspaceprogram.com/. A free demo is also available in the steam store. Thanks for reading this far and if you enjoy my content, please consider subscribing to my channel. I don't advertise it much and I certainly don't expect anything from anyone, but if you're keen to help support me, due to requests from my subscribers, I ha...

    published: 25 Dec 2015
  • The Longest Underwater Tunnel | China's Future MEGAPROJECTS: Part 5

    China is building the world’s longest underwater tunnel beneath the Bohai Sea--at 76 miles long it will pass through two deadly earthquake fault zones, will be longer than the current first and second-ranked underwater tunnels combined and will cost $42 billion. Subscribe to TDC for more videos like this: https://www.youtube.com/TheDailyConversation/ More information on the Bohai Sea Tunnel: https://www.wikiwand.com/en/Bohai_Strait_tunnel Like our page on Facebook http://www.facebook.com/thedailyconversation Join us on Google+ https://plus.google.com/100134925804523235350/posts Follow us on Twitter http://www.twitter.com/thedailyconvo Video created by Bryce Plank

    published: 31 Jan 2016
  • UPDATE: CAT Elevated Excavator #mobydig Submerged, at The Rampion Wind Farm Construction.

    With just a few hours of work remaining on the contract, the CAT 374DL elevated excavator sunk into a unknown soft area of seabed which collapsed as the digger passed over it and got stuck, then the tide came in. The soft area was probably caused by large concrete coastal defences being removed from the beach after WW2. https://www.youtube.com/watch?v=G50rlPCxa78

    published: 05 Apr 2017
  • SPS Concrete Mattress

    Concrete mattresses provide a recognised engineering solution to several of the challenges faced in subsea pipeline construction, umbilical deployment and seabed and soil protection/stabilisation. They are cost effective and may be readily deployed using standard handling systems.

    published: 14 Oct 2014
  • The Chunnel - World's Longest Underwater Tunnel - History Channel HD

    The Chunnel - World's Longest Underwater Tunnel - History Channel HD At its lowest level, it is 75 m (250 feet) deep. At 37.9 kilometres (23.5 mi), the tunnel has the lengthiest undersea section of any passage in the world, although the Seikan Tunnel in Japan is both much longer overall at 53.85 kilometres (33.46 mi) and also deeper at 240 metres (790 feet) listed below sea degree. The speed limitation in the tunnel is 160 kilometres per hr (99 mph). -- as well as international products trains. The passage attaches end-to-end with the LGV Nord and also High Speed 1 high-speed train lines. Concepts for a cross-Channel repaired hyperlink looked like early as 1802, British political as well as press stress over the compromising of nationwide safety delayed attempts to construct a passage....

    published: 14 Apr 2015
  • How do engineers build bridge towers under water?

    Arch 352 Project 2

    published: 23 Feb 2015
  • How a Deep-Sea Offshore Drilling Rig Works

    After 22 hours, the crew of the Maersk Interceptor have assembled and lowered 551 feet of pipes into the water. Through them, a hydraulic hammer will operate to drive these pipes 131 feet below the seafloor. From: MIGHTY SHIPS: Maersk Interceptor http://bit.ly/2biRHN1

    published: 19 Aug 2016
  • Paving Singapore's First Undersea Road

    Volvo road machines pave the first undersea road in Singapore. Costing some S$4.1 billion, the Marina Costal Expressway (MCE) is a dual 5 lane 5km long expressway with 3.6km built as a tunnel and a 420m section underneath the sea bed.

    published: 20 Nov 2013
  • Japanese Firm Unveils Design For Underwater City

    A Japan-based construction company has unveiled its design for an entire underwater city that can accommodate up to 5,000 residents. The human population is constantly growing, and it may be time to look into other places to live, including underwater. A Japan-based construction company has unveiled its design for a subaquatic city that can accommodate up to 5,000 residents. The proposed city is being called the "Ocean Spiral." Three sections will make up the structure. A floating sphere or pod that has a diameter of nearly 1,650 feet will rest just beneath the surface of the ocean. The pod will contain both residences and businesses, with a spiral path connecting the sphere to the seabed. This will allow scientists to utilize energy resources from the ocean floor. For example, ...

    published: 25 Nov 2014
  • Veja Mate offshore wind farm installation

    Veja Mate will have a capacity of 400MW and is located in the German section of the North Sea, 130 kilometers north of Eemshaven. Work scope included the design, procurement, manufacture, transport and installation (including scour protection) of the foundations – consisting of enormous monopiles and transition pieces – for 67 wind turbines.

    published: 17 Nov 2016
  • Overview on Deep Water Drilling

    Animation of deepwater drilling

    published: 30 Mar 2012
  • How Undersea Internet Fiber Optic Cables Are Laid On The Ocean Floor

    Laying of cables in the oceans of our world is a fascinating business. Men and women toil long and tedious hours to make this possible. Submarine cables are laid down by using specially-modified ships that carry the submarine cable on board and slowly lay it out on the seabed as per the plans given by the cable operator. The ships can carry with them up to 2,000km-length of cable. Depending on the equipment on-board the cable-ship, the type of plow used, the sea conditions and the ocean-bed where the cable is being laid down, cable ships can do anywhere from 100-150km of cable laying per day. Newer ships and plows now do about 200km of cable laying per day. The cables are specially constructed for submarine operations as they have to endure harsh conditions as well as pressure. Fiber opti...

    published: 13 Aug 2017
  • Inside The Titanic (Cabins and Hallways)

    published: 28 Jul 2010
  • Deep Water Offshore Wind Turbine Foundation

    Xanthus Energy has developed a buoyant, deep water wind turbine foundation system designed for low cost series production using pre-fabrication assembly line methods. This video shows the installation process used for a tension legged platform for deep water WTGs. Visit www.XanthusEnergy.com for more details.

    published: 05 Oct 2012
  • BBC-Earth , Life Story Ep05 - Courtship - Puffer Fish (From Netflix)

    Quick example of the beauty we can find in those new BBC-Earth documentaries. Captured with shadowplay

    published: 08 Dec 2016
  • McDermott Lay Vessel North Ocean 105_2014

    McDermott Lay Vessel North Ocean 105 is designed for advanced, deepwater offshore operations. Outfitted with state-of-the-art marine construction equipment, "105" can install a variety of infrastructure: rigid-reeled pipelines, subsea components and hardware, as well as flexible products. The rigid-reeled pipelay system with top-tier payload capacity enables subsea installation up to 10,000 feet.

    published: 21 Apr 2014
  • Mysterious Underwater Crop Circles Discovered by Yoji Ookata Off the Coast of Japan

    Watch this Fish in action here: http://www.youtube.com/watch?v=kj-K_pFoaDo Yoji Ookata who obtained his scuba license at the age of 21 and has since spent the last 50 years exploring and documenting his discoveries off the coast of Japan. Recently while on a dive near Amami Oshima at the southern tip of the country, Ookata spotted something he had never encountered before: rippling geometric sand patterns nearly six feet in diameter almost 80 feet below sea level. He soon returned with colleagues and a television crew from the nature program NHK to document the origins what he dubbed the "mystery circle." Underwater cameras showed that the artist was a small puffer fish who, using only his flapping fin, tirelessly worked day and night to carve the circular ridges. The unlikely artist -- be...

    published: 20 Sep 2012
  • SEABED MINING

    The impacts of seabed mining.

    published: 25 Oct 2017
developed with YouTube
Subnautica - #5 - Seabed Home - Let's Play / Gameplay / Construction
22:39

Subnautica - #5 - Seabed Home - Let's Play / Gameplay / Construction

  • Order:
  • Duration: 22:39
  • Updated: 09 Feb 2018
  • views: 1744
videos
This looks fun, so let's play Subnautica. +++++ GAME LINKS: Website: https://unknownworlds.com/subnautica/ Steam: http://store.steampowered.com/app/264710/Subnautica/ +++++ GAME DETAILS: Descend into the depths of an alien underwater world filled with wonder and peril. Craft equipment, pilot submarines and out-smart wildlife to explore lush coral reefs, volcanoes, cave systems, and more - all while trying to survive. +++++ STUFF+ LINKS: YouTube: http://www.youtube.com/subscription_c... Twitter: https://twitter.com/OStuffPlus Patreon: https://www.patreon.com/StuffPlus Email: (See about page)
https://wn.com/Subnautica_5_Seabed_Home_Let's_Play_Gameplay_Construction
Construction Support Vessel "Seabed Supporter" Docking
7:47

Construction Support Vessel "Seabed Supporter" Docking

  • Order:
  • Duration: 7:47
  • Updated: 19 Feb 2018
  • views: 45
videos
https://wn.com/Construction_Support_Vessel_Seabed_Supporter_Docking
Deepwater Enabler - Next generation offshore construction vessel
2:10

Deepwater Enabler - Next generation offshore construction vessel

  • Order:
  • Duration: 2:10
  • Updated: 26 Jun 2013
  • views: 24122
videos
National Oilwell Varco (NOV) and ULSTEIN are proud to present the next generation of modern offshore vessels. This is the standard for future offshore construction. The vessel platform used is the ULSTEIN designed Deepwater Enabler. A flexible design ready for any challenging offshore operation!
https://wn.com/Deepwater_Enabler_Next_Generation_Offshore_Construction_Vessel
From the seabed to the cloud: constructing the most advanced cable laying vessel
2:39

From the seabed to the cloud: constructing the most advanced cable laying vessel

  • Order:
  • Duration: 2:39
  • Updated: 30 May 2017
  • views: 2458
videos
The story behind NKT Victoria, the most advanced cable laying vessel.
https://wn.com/From_The_Seabed_To_The_Cloud_Constructing_The_Most_Advanced_Cable_Laying_Vessel
Scientific Deep Sea Drilling and Coring Technology
14:53

Scientific Deep Sea Drilling and Coring Technology

  • Order:
  • Duration: 14:53
  • Updated: 13 Nov 2013
  • views: 354967
videos
The video shows scientific ocean drilling and coring technology. Scientific Deep Sea Drilling Vessel CHIKYU is the state-of-the-art research vessel exploring the deep earth by sampling, measuring and monitoring operated by JAMSTEC. The Earth deep below the seafloor contains a unique record of our planet's evolution and structure. Scientists study the sub-seafloor to better understand Earth's components, history, and phenomena. This research helps us answer questions about fundamental aspects of our planet such as the environment, the biosphere, solid earth cycles, and geodynamics. 00:00 The process of deep sea drilling 04:04 Rotary drilling 05:23 Riser drilling system 07:30 Coring procedure 10:38 Core sample processing More about the research vessel CHIKYU, http://www.jamstec.go.jp/chikyu/ (C) JAMSTEC
https://wn.com/Scientific_Deep_Sea_Drilling_And_Coring_Technology
Puffer Fish Creates This Blue Water Art  ~: }
3:13

Puffer Fish Creates This Blue Water Art ~: }

  • Order:
  • Duration: 3:13
  • Updated: 03 Apr 2017
  • views: 635743
videos
"This video is for educational purposes" !Quick example of the beauty we can find in those BBC-Earth new documentaries. The amazing little puffer fish capable of creating elaborately designed 'crop circles' at the bottom of the ocean as part of an elaborate mating ritual. The behavior was first documented by a photographer named Yoji Ookata who later returned with a film crew from the Japanese nature show NHK which later aired an episode about the fish. Even as articles bounced around the web it was still difficult to imagine how a tiny fish could create such a large design in the sand, even when staring directly at photographic evidence. Finally, video has emerged that shows just how the little guy delicately traverses the sand in a rotating criss-cross pattern to create a sort of subaquatic spirograph. The textured sand sculpture not only attracts mates but also serves as protection when the fish pair and lays eggs.
https://wn.com/Puffer_Fish_Creates_This_Blue_Water_Art_~
Underwater Launches To Eve's Seabed And Back - KSP Reddit Challenge
6:50

Underwater Launches To Eve's Seabed And Back - KSP Reddit Challenge

  • Order:
  • Duration: 6:50
  • Updated: 25 Dec 2015
  • views: 476401
videos
My super hard mode submission to the recent reddit challenge where I launch from below Kerbin's oceans to below Eve's oceans and back in a single launch! https://www.reddit.com/r/KerbalSpaceProgram/comments/3wmvj4/weekly_challenge_week_108_the_jatwaa_challenge/ You can now follow me on Twitter! https://twitter.com/Hazard_ish Kerbal Space Program is a fantastic rocket building simulator that I would highly recommend purchasing if you haven't already at http://kerbalspaceprogram.com/. A free demo is also available in the steam store. Thanks for reading this far and if you enjoy my content, please consider subscribing to my channel. I don't advertise it much and I certainly don't expect anything from anyone, but if you're keen to help support me, due to requests from my subscribers, I have set up a Patreon page. https://www.patreon.com/Hazardish Music used (in order): - Robbie Buchanan: The Chosen One - Luke Vibert: Tank! (a remix of the same name by Yoko Kanno) - Kevin Macleod: Cold Funk (outro music) Mods used: - Scatterer - Astronomers visual pack (edge of oblivion) - Camera Tools
https://wn.com/Underwater_Launches_To_Eve's_Seabed_And_Back_Ksp_Reddit_Challenge
The Longest Underwater Tunnel | China's Future MEGAPROJECTS: Part 5
3:07

The Longest Underwater Tunnel | China's Future MEGAPROJECTS: Part 5

  • Order:
  • Duration: 3:07
  • Updated: 31 Jan 2016
  • views: 221689
videos
China is building the world’s longest underwater tunnel beneath the Bohai Sea--at 76 miles long it will pass through two deadly earthquake fault zones, will be longer than the current first and second-ranked underwater tunnels combined and will cost $42 billion. Subscribe to TDC for more videos like this: https://www.youtube.com/TheDailyConversation/ More information on the Bohai Sea Tunnel: https://www.wikiwand.com/en/Bohai_Strait_tunnel Like our page on Facebook http://www.facebook.com/thedailyconversation Join us on Google+ https://plus.google.com/100134925804523235350/posts Follow us on Twitter http://www.twitter.com/thedailyconvo Video created by Bryce Plank
https://wn.com/The_Longest_Underwater_Tunnel_|_China's_Future_Megaprojects_Part_5
UPDATE: CAT Elevated Excavator #mobydig Submerged, at The Rampion Wind Farm Construction.
1:19

UPDATE: CAT Elevated Excavator #mobydig Submerged, at The Rampion Wind Farm Construction.

  • Order:
  • Duration: 1:19
  • Updated: 05 Apr 2017
  • views: 3296643
videos
With just a few hours of work remaining on the contract, the CAT 374DL elevated excavator sunk into a unknown soft area of seabed which collapsed as the digger passed over it and got stuck, then the tide came in. The soft area was probably caused by large concrete coastal defences being removed from the beach after WW2. https://www.youtube.com/watch?v=G50rlPCxa78
https://wn.com/Update_Cat_Elevated_Excavator_Mobydig_Submerged,_At_The_Rampion_Wind_Farm_Construction.
SPS Concrete Mattress
3:10

SPS Concrete Mattress

  • Order:
  • Duration: 3:10
  • Updated: 14 Oct 2014
  • views: 9965
videos
Concrete mattresses provide a recognised engineering solution to several of the challenges faced in subsea pipeline construction, umbilical deployment and seabed and soil protection/stabilisation. They are cost effective and may be readily deployed using standard handling systems.
https://wn.com/Sps_Concrete_Mattress
The Chunnel - World's Longest Underwater Tunnel - History Channel HD
45:00

The Chunnel - World's Longest Underwater Tunnel - History Channel HD

  • Order:
  • Duration: 45:00
  • Updated: 14 Apr 2015
  • views: 2098007
videos
The Chunnel - World's Longest Underwater Tunnel - History Channel HD At its lowest level, it is 75 m (250 feet) deep. At 37.9 kilometres (23.5 mi), the tunnel has the lengthiest undersea section of any passage in the world, although the Seikan Tunnel in Japan is both much longer overall at 53.85 kilometres (33.46 mi) and also deeper at 240 metres (790 feet) listed below sea degree. The speed limitation in the tunnel is 160 kilometres per hr (99 mph). -- as well as international products trains. The passage attaches end-to-end with the LGV Nord and also High Speed 1 high-speed train lines. Concepts for a cross-Channel repaired hyperlink looked like early as 1802, British political as well as press stress over the compromising of nationwide safety delayed attempts to construct a passage. An early attempt at constructing a Stations Tunnel was made in the late 19th century, on the English side "in the hope of forcing the hand of the English Government". The eventual successful project, organised by Eurotunnel, began construction in 1988 and opened in 1994. At 4.650 billion, the project can be found in 80 % over its anticipated budget. At 37.9 kilometres (23.5 mi), the tunnel has the longest undersea section of any kind of passage in the world, although the Seikan Passage in Japan is both longer complete at 53.85 kilometres (33.46 mi) as well as much deeper at 240 metres (790 ft) here sea level. The rate limit in the passage is 160 kilometres per hour (99 miles per hour). The passage hooks up end-to-end doing the LGV Nord and also High Rate 1 high-speed railway lines. British political as well as press stress over the compromising of national security stalled attempts to construct a tunnel. An early attempt at building a Stations Tunnel was made in the late 19th century, on the English side "in the hope of forcing the hand of the English Government". More Documentary Films: http://historychannelhd.blogspot.com Be The First To Watch Our Newly Uploaded Videos Just By Subscribing To Our Channel http://www.youtube.com/channel/UCZimbEnw_WEQggZE1J_IMVA?sub_confirmation=1
https://wn.com/The_Chunnel_World's_Longest_Underwater_Tunnel_History_Channel_Hd
How do engineers build bridge towers under water?
5:13

How do engineers build bridge towers under water?

  • Order:
  • Duration: 5:13
  • Updated: 23 Feb 2015
  • views: 675289
videos https://wn.com/How_Do_Engineers_Build_Bridge_Towers_Under_Water
How a Deep-Sea Offshore Drilling Rig Works
3:05

How a Deep-Sea Offshore Drilling Rig Works

  • Order:
  • Duration: 3:05
  • Updated: 19 Aug 2016
  • views: 461837
videos
After 22 hours, the crew of the Maersk Interceptor have assembled and lowered 551 feet of pipes into the water. Through them, a hydraulic hammer will operate to drive these pipes 131 feet below the seafloor. From: MIGHTY SHIPS: Maersk Interceptor http://bit.ly/2biRHN1
https://wn.com/How_A_Deep_Sea_Offshore_Drilling_Rig_Works
Paving Singapore's First Undersea Road
4:37

Paving Singapore's First Undersea Road

  • Order:
  • Duration: 4:37
  • Updated: 20 Nov 2013
  • views: 10563
videos
Volvo road machines pave the first undersea road in Singapore. Costing some S$4.1 billion, the Marina Costal Expressway (MCE) is a dual 5 lane 5km long expressway with 3.6km built as a tunnel and a 420m section underneath the sea bed.
https://wn.com/Paving_Singapore's_First_Undersea_Road
Japanese Firm Unveils Design For Underwater City
1:05

Japanese Firm Unveils Design For Underwater City

  • Order:
  • Duration: 1:05
  • Updated: 25 Nov 2014
  • views: 35773
videos
A Japan-based construction company has unveiled its design for an entire underwater city that can accommodate up to 5,000 residents. The human population is constantly growing, and it may be time to look into other places to live, including underwater. A Japan-based construction company has unveiled its design for a subaquatic city that can accommodate up to 5,000 residents. The proposed city is being called the "Ocean Spiral." Three sections will make up the structure. A floating sphere or pod that has a diameter of nearly 1,650 feet will rest just beneath the surface of the ocean. The pod will contain both residences and businesses, with a spiral path connecting the sphere to the seabed. This will allow scientists to utilize energy resources from the ocean floor. For example, carbon dioxide will turn into methane with help from microorganisms. Power generators that are installed around the sea dome will make use of seawater temperature fluctuations to create even more energy, as part of an action known as thermal energy conversion. Hydraulic pressure helps produce desalinated water, which will in turn be jetted into the sphere. Staffers with the construction company believe the technology needed to make such a city exist will be available within the next 15 years.
https://wn.com/Japanese_Firm_Unveils_Design_For_Underwater_City
Veja Mate offshore wind farm installation
4:31

Veja Mate offshore wind farm installation

  • Order:
  • Duration: 4:31
  • Updated: 17 Nov 2016
  • views: 3884048
videos
Veja Mate will have a capacity of 400MW and is located in the German section of the North Sea, 130 kilometers north of Eemshaven. Work scope included the design, procurement, manufacture, transport and installation (including scour protection) of the foundations – consisting of enormous monopiles and transition pieces – for 67 wind turbines.
https://wn.com/Veja_Mate_Offshore_Wind_Farm_Installation
Overview on Deep Water Drilling
7:52

Overview on Deep Water Drilling

  • Order:
  • Duration: 7:52
  • Updated: 30 Mar 2012
  • views: 1287273
videos
Animation of deepwater drilling
https://wn.com/Overview_On_Deep_Water_Drilling
How Undersea Internet Fiber Optic Cables Are Laid On The Ocean Floor
3:12

How Undersea Internet Fiber Optic Cables Are Laid On The Ocean Floor

  • Order:
  • Duration: 3:12
  • Updated: 13 Aug 2017
  • views: 161190
videos
Laying of cables in the oceans of our world is a fascinating business. Men and women toil long and tedious hours to make this possible. Submarine cables are laid down by using specially-modified ships that carry the submarine cable on board and slowly lay it out on the seabed as per the plans given by the cable operator. The ships can carry with them up to 2,000km-length of cable. Depending on the equipment on-board the cable-ship, the type of plow used, the sea conditions and the ocean-bed where the cable is being laid down, cable ships can do anywhere from 100-150km of cable laying per day. Newer ships and plows now do about 200km of cable laying per day. The cables are specially constructed for submarine operations as they have to endure harsh conditions as well as pressure. Fiber optic cables carry DWDM [Dense Wavelength Division Multiplexing] laser signals at a rate of terabytes per second. They use optical repeaters to strengthen the signal which attenuates over long distances. They have a decade lifespan and costs vary (depending on the length of the cable). The typical cost for a project is anywhere from $100m-$500m. We don't use satellites because they can't carry terabytes of data for less than a billion dollars per communication line. The coiling of hundreds of miles of cable in the cargo hold is a process that can take between three to four weeks to complete. Submarine cable laying process starts from the landing station, where a long cable section is attached (connected) to the landing point and then extended out to a few miles in the sea. This end is connected to the cable on the ship and then the ship starts its cable laying process. The process also involves a plow. The cable is not simply left to sit on the ocean bed, but is actually being fed into a plow, that lays the cable into a trench. Depending on where the cable is laid out, the cable coming in from the ocean to the landing station might be advertised or not. Most of the time cable consortium companies try to hide the cable as much as they can, so that only those who need to know – municipalities, port authorities and shipping companies – are informed of the exact route of the cable. When cables are damaged, either divers or specialized small submersibles with cameras and lights are sent down to the seabed to investigate where the cuts are. Then, either the divers or robotic arms on the submersible bring the two ends of the cable to the surface, where they are re-spliced and joined again. Music: Bottom of the Sea (Instrumental Version) by Dhruva Aliman https://dhruvaaliman.bandcamp.com/album/hard-to-get-along http://www.dhruvaaliman.com/
https://wn.com/How_Undersea_Internet_Fiber_Optic_Cables_Are_Laid_On_The_Ocean_Floor
Inside The Titanic (Cabins and Hallways)
7:09

Inside The Titanic (Cabins and Hallways)

  • Order:
  • Duration: 7:09
  • Updated: 28 Jul 2010
  • views: 8267650
videos
https://wn.com/Inside_The_Titanic_(Cabins_And_Hallways)
Deep Water Offshore Wind Turbine Foundation
4:07

Deep Water Offshore Wind Turbine Foundation

  • Order:
  • Duration: 4:07
  • Updated: 05 Oct 2012
  • views: 16892
videos
Xanthus Energy has developed a buoyant, deep water wind turbine foundation system designed for low cost series production using pre-fabrication assembly line methods. This video shows the installation process used for a tension legged platform for deep water WTGs. Visit www.XanthusEnergy.com for more details.
https://wn.com/Deep_Water_Offshore_Wind_Turbine_Foundation
BBC-Earth , Life Story Ep05 - Courtship - Puffer Fish (From Netflix)
3:13

BBC-Earth , Life Story Ep05 - Courtship - Puffer Fish (From Netflix)

  • Order:
  • Duration: 3:13
  • Updated: 08 Dec 2016
  • views: 1529700
videos
Quick example of the beauty we can find in those new BBC-Earth documentaries. Captured with shadowplay
https://wn.com/BBC_Earth_,_Life_Story_Ep05_Courtship_Puffer_Fish_(From_Netflix)
McDermott Lay Vessel North Ocean 105_2014
1:34

McDermott Lay Vessel North Ocean 105_2014

  • Order:
  • Duration: 1:34
  • Updated: 21 Apr 2014
  • views: 23467
videos
McDermott Lay Vessel North Ocean 105 is designed for advanced, deepwater offshore operations. Outfitted with state-of-the-art marine construction equipment, "105" can install a variety of infrastructure: rigid-reeled pipelines, subsea components and hardware, as well as flexible products. The rigid-reeled pipelay system with top-tier payload capacity enables subsea installation up to 10,000 feet.
https://wn.com/Mcdermott_Lay_Vessel_North_Ocean_105_2014
Mysterious Underwater Crop Circles Discovered by Yoji Ookata Off the Coast of Japan
1:11

Mysterious Underwater Crop Circles Discovered by Yoji Ookata Off the Coast of Japan

  • Order:
  • Duration: 1:11
  • Updated: 20 Sep 2012
  • views: 416272
videos
Watch this Fish in action here: http://www.youtube.com/watch?v=kj-K_pFoaDo Yoji Ookata who obtained his scuba license at the age of 21 and has since spent the last 50 years exploring and documenting his discoveries off the coast of Japan. Recently while on a dive near Amami Oshima at the southern tip of the country, Ookata spotted something he had never encountered before: rippling geometric sand patterns nearly six feet in diameter almost 80 feet below sea level. He soon returned with colleagues and a television crew from the nature program NHK to document the origins what he dubbed the "mystery circle." Underwater cameras showed that the artist was a small puffer fish who, using only his flapping fin, tirelessly worked day and night to carve the circular ridges. The unlikely artist -- best known in Japan as a delicacy, albeit a potentially poisonous one -- even takes small shells, cracks them, and lines the inner grooves of his sculpture as if decorating his piece. Further observation revealed that this "mysterious circle" was not just there to make the ocean floor look pretty. Attracted by the grooves and ridges, female puffer fish would find their way along the dark seabed to the male puffer fish where they would mate and lay eggs in the center of the circle. In fact, the scientists observed that the more ridges the circle contained, the more likely it was that the female would mate with the male. The little sea shells weren't just in vain either. The observers believe that they serve as vital nutrients to the eggs as they hatch, and to the newborns. What was fascinating was that the fish's sculpture played another role. Through experiments back at their lab, the scientists showed that the grooves and ridges of the sculpture helped neutralize currents, protecting the eggs from being tossed around and potentially exposing them to predators. Image credits: Yoji Ookata
https://wn.com/Mysterious_Underwater_Crop_Circles_Discovered_By_Yoji_Ookata_Off_The_Coast_Of_Japan
SEABED MINING
5:36

SEABED MINING

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  • Duration: 5:36
  • Updated: 25 Oct 2017
  • views: 264
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The impacts of seabed mining.
https://wn.com/Seabed_Mining
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