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there are data centers at the bottom of the ocean I'm not crazy there's not very

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many of them this is still very much experimental but it's an idea that could

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revolutionize waste heat management which is something I think about a lot

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in 2015 Microsoft sunk its first

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prototype underwater data center off the coast of California and left it there

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for 2 months in 2018 they did it again

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they sunk an airtight metal storage tank with 864 servers and 27.6 pedabytes of

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storage near the Scottish orne islands 117 ft below the surface they declared

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that experiment a success after 2 years

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noting that the sealed server tank had an eighth of the failure rate of a

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conventional data center now as promising as these results are there are

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some obvious drawbacks to sinking a server in a large natural body of water

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using a data Center's waste heat to warm a local swimming pool is relatively easy

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in comparison because because we're dealing with a controlled artificial

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environment but humans aside from Jason Mamoa cannot control the ocean see the

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problem with the ocean is that it is incredibly deep and Incredibly salty

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like a goth girl with tret cards ocean water has a typical salinity of 3.5%

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compared to freshwater which has a salinity of 0.5% or less what this means

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is that saltwater is essentially an electrolyte solution which increases

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conductivity and chemically accelerates corrosion that's not an insurmountable

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barrier though because Humanity has a lot of experience protecting the

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submerged parts of metal watercraft through anti-corrosion Coatings like

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specialized paint active galvanic protection and colar enamel of course we

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could also use freshwater sources like relatively deep Lakes but the ocean

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being massive would allow us to implement sunken servers on a much

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larger scale you'd still need data centers to serve population centers

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further in land but around 40% of the global population lives within 100 miles

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of the coast which is nothing to sneeze at now another problem is that water is

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actually pretty heavy with every additional 100 ft below sea level we're

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piling on an extra three atmospheres of pressure but we're never going to put

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these data centers anywhere other than the relatively shallow continental shelf

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because we'd want them to be relatively close by fortunately a typical

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cylindrical storage container with thick metal walls can easily withstand the

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pressure of a few hundred ft of seawater these data centers also have to be

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reliably anchored in place to stop them from shifting you wouldn't be able to

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tell just by looking but there are strong currents deep underneath the

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surface not to mention that hurricanes can churn up water from hundreds of feet

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deep and sometimes wind up disturbing sunken wrecks on the seafloor the 2018

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Microsoft Data Center used a triangular base loaded with heavy ballist it also

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wound up coated in a layer of algae and colonized by C anemones after only 2

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years underwater animal interference isn't too much of an issue for a thick

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metal container but any cable leading to or from the container should ideally be

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wrapped in Kevlar and buried below the seabed to protect it from shark attacks

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oh that's not a joke for unclear reasons possibly related to sharks Electro

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receptive senses they occasionally Chomp on undersea cables but these are all

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solvable problems with current technology and the idea has enormous

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potential benefits we'll tell you more after we thank HRS for sponsoring this

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performance today the primary advantage of syncing servers is consistent Rel

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relatively cheap cooling on the surface temperature and humidity vary from hour

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to hour the bottom of the ocean however has an extremely consistent cold

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temperature that's because deep bodies of water typically stratify by density

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which means that they also stratify by temperature so even though the surface

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of the water gets heated by the Sun and stirred by the wind that water rarely

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interacts with the layers of Colder denser water deep below when the server

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is surrounded by consistent low temperature water less additional energy

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is expended on the cooling process which is a cost and efficiency win but also a

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marginal environmental win likewise large data centers in major urban areas

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can cost a fair amount in rent because they compete for space with offices

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Industries and airbnbs data centers are

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one of the few business assets that could be relocated to the bottom of the

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ocean where they wouldn't really compete with fish so much as get gradually

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colonized by them if we were then able to leave these servers in place and not

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touch them for around a decade the disruption to the benic biome would be

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minimal these underwater data servers also take advantage of an idea that has

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been used on land sealing the servers in an airtight oxygen-free environment that

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is instead filled with a dry neutral gas like nitrogen nitrogen is less corrosive

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than oxygen and nonflammable increasing server longevity and preventing fires in

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these conditions the lack of on-site maintenance has a hidden advantage human

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machine interactions always have the possibility of bumps jostling and other

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forms of human error that increase the risk of accidental damage a much much

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lower failure rate means that with sufficient redundancy the server can be

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left in place with drives replaced only during scheduled turnover speaking of

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turnover my turn to speak is now over thanks for watching like dislike or

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check out this video on the history of water cooling feel free to comment below

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with video suggestions and don't forget to subscribe and follow Techquickie

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