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Long-Running Underwater Robot Lost At Sea

this_boat_is_real writes "Somewhere off the coast of Chile a pioneering underwater robot named Abe lies in a watery grave today. The Autonomous Benthic Explorer was one of the first truly independent research submersibles, being both unmanned and un-tethered to its launching ship. While on its 222nd research dive on Friday all contact with the craft was lost, the Woods Hole Oceanographic Institution has announced."

132 comments

  1. Release the Kraken? by greg_barton · · Score: 1, Funny

    I think we are well and truly fucked.

    1. Re:Release the Kraken? by ItzRobZ · · Score: 2, Insightful

      Great, battle of the Titans in real life? Something tells me this is too much of a coincidence!

    2. Re:Release the Kraken? by davester666 · · Score: 4, Insightful

      Well, may it's not lost.

      Maybe the sub truly is autonomous, as in "having autonomy; not subject to control from outside; independent"?
       

      --
      Sleep your way to a whiter smile...date a dentist!
    3. Re:Release the Kraken? by Anonymous Coward · · Score: 1, Funny

      It's Clash of the Titans, you insensitive clod!

    4. Re:Release the Kraken? by confused+one · · Score: 2, Funny

      Wait, I can't get the meme straight in my head...

      Is a newly self-aware Automated Undersea Vehicle an Overloard or an Underlord?

    5. Re:Release the Kraken? by Anonymous Coward · · Score: 0

      Shouldn't your declaration include the obligatory car analogy? Or at the very least a timely Toyota reference? Please try to be a little more entertaining or topical in regards to your proclamations of doom.

    6. Re:Release the Kraken? by Anonymous Coward · · Score: 0

      I made an autonomous robot one time. It was modelled after a goose. It was always asking for directions (embedded software patches).

  2. they where right! by jisou · · Score: 2, Informative

    all the movies form the fifties about giant sea monsters being released by earthquakes are true! We must prepare are selves by watching hours of scifi original movies! Its also no coincidence, 222nd dive? that's 1/3 evil.

    1. Re:they where right! by zappepcs · · Score: 1

      Actually, not all robot vehicles last like the Mars rovers. They are sensational robots. There are many robots that never return from their maiden voyage. ABE has done a lot of good. It will be good to know what did the robot in, but this is not a day to panic. I recently let go of my 21 year old Honda Accord. It had 222k miles on it. Closest it got to an earth quake was a fender bender. At least ABE has avoided the humiliation of being gutted and sold for parts or put on display in some museum where people can ask continuously "what's that?"

      Perhaps we should institute a byte/per dollar lifetime achievement awards program for data collection robots? Certainly ABE would be in the record books for a long time, and with a higher rating than perhaps Hubble? Hard to say, but would be interesting.

    2. Re:they where right! by nacturation · · Score: 1

      This movie is from the 80s... The Abyss. It even had a ship the Benthic Explorer, no doubt what this one was named after.

      --
      Want to improve your Karma? Instead of "Post Anonymously", try the "Post Humously" option.
    3. Re:they where right! by Volante3192 · · Score: 4, Informative

      That, or the fact that 'benthic' is an adjective referring to the bottom of the ocean.

      http://www.merriam-webster.com/dictionary/benthic

    4. Re:they where right! by Hognoxious · · Score: 1

      We must prepare are selves

      Sorry, but I need to you're innate.

      --
      Confucius say, "Find worm in apple - bad. Find half a worm - worse."
    5. Re:they where right! by WinstonWolfIT · · Score: 0

      Spell-check has failed you young padewan. WERE. WERE.

    6. Re:they where right! by Sperbels · · Score: 0, Flamebait

      I wonder where all the people are who were complaining about us littering the moon's "ecosystem" when NASA crashed that rocket into it? Surely this is a hundred times worse because it's now garbage in an actual ecosystem.

    7. Re:they where right! by Sulphur · · Score: 1

      If there were two, then one could help the other.

      Mom, what is an Unidentified Submersible Object. Stay away from it ABE.

      --

      You are in a small chamber.
      Examine chamber.
      There is hardware for hanging a curtain. A pipe is sticking out from the wall; it may be a microphone.

    8. Re:they where right! by raddan · · Score: 1

      I'm not worried about that. We should be concerned for our children's children, when a gigantic sea monster calling itself A'e comes up from the deep, wanting to "join with its creator".

    9. Re:they where right! by Anonymous Coward · · Score: 0

      ecosystem (noun):
      A system formed by the interaction of a community of organisms with their physical environment.

  3. floaties? by Garganus · · Score: 2, Interesting

    And nobody on the sub engineering team thought, "hey, maybe we should add a ballast balloon that floats it to the surface if it loses all contact with the surface." Wow.

    1. Re:floaties? by Anonymous Coward · · Score: 1, Insightful

      the shrapnel created by a glass sphere implosion at two tons per square inch was enough to shred armored steel antennas and hydrophones. what chance do you think a flimsy balloon would have you fucking ignorant idiot ?

    2. Re:floaties? by Volante3192 · · Score: 5, Informative

      Touché, vulgar anonymous poster.

      The people that design these things are smart. Smarter than the average poster here in their field. If Joe Armchairengineer can think it up, I'm pretty damn confident that the engineers behind ABE thought of it too.

      In fact, from the WHOI release, there's this nugget:

      ABE was equipped with several independent systems to bring it back to the surface at the end of a dive or should a fault occur. The Melville remained in the vicinity to see if ABE had resurfaced, at first searching for ABE’s strobe lights in the darkness. Researchers tried to establish radio contact with ABE in the event it had surfaced, but attempts turned up nothing.

    3. Re:floaties? by Anonymous Coward · · Score: 0

      Ignorance and arrogance are a powerfully bad combination.

      Wow.

    4. Re:floaties? by Anonymous Coward · · Score: 0

      And nobody on the sub engineering team thought, "hey, maybe we should add a ballast balloon that floats it to the surface if it loses all contact with the surface." Wow.

      Engineering team says "If the submarine is operating at such high depths and pressures that titanium pressure enclosures and glass spheres fail, what would you make your balloon from?"

    5. Re:floaties? by Anonymous Coward · · Score: 0

      Engineering team says "If the submarine is operating at such high depths and pressures that titanium pressure enclosures and glass spheres fail, what would you make your balloon from?"

      well they would make it out of unobtainium of course. sheesh

    6. Re:floaties? by Ethanol-fueled · · Score: 1

      Learn to ballast, idiot. It would be dependent on the strength of the pumps and ballast tanks. Look at the pic. There aren't any ballast mechanisms or even elevation control surfaces other than two vertical propellers. Think of ABE as an undersea helicopter(or autogyro to be precise) rather than a submarine.

      Also, it's hull markings indicate NCC-1701 B. Badass.

    7. Re:floaties? by toastar · · Score: 1

      Learn to ballast, idiot.

      Win!

      I want a minisub.

      That is all.

    8. Re:floaties? by Solandri · · Score: 4, Informative
      It's been a while since I worked with the WHOI folks so my memory is a bit hazy. But generally these underwater submersibles come with:
      • A descent weight, used to make the craft negatively buoyant for the initial descent, then dropped to leave it neutrally buoyant.
      • An ascent weight, dropped at the end of the mission to make the neutrally buoyant craft positively buoyant.
      • A bladder which can be pumped with oil from a reservoir tank to fine-tune buoyancy.

      Air doesn't work because of the enormous pressure involved. A 3000 psi scuba tank could only inflate a balloon down to about 2000 meters. Below that, the water pressure is greater than that inside the tank, and opening the valve would result in water forcing the balloon into the tank, rather than air inflating the balloon. A 10000 psi high pressure tank would work at 5000 meters, but would only result in about a 30% increase in volume, meaning you'd need a very big tank to be able to raise the entire craft in a catastrophic failure. Furthermore, the air would expand as the craft rose, risking rupturing the balloon. That's why the buoyancy control uses an oil bladder - oil is relatively incompressible.

      Dropping the ascent weight helps raise the craft at the end of a mission. But usually they're relatively lightweight so you can attach them manually. The 17-inch glass spheres typically used to house equipment provides over 50 pounds of buoyancy. The failure of one of these spheres at a depth of 3000 meters (~4500 psi) would release (4500 psi) * 4/3 * pi * (8.5 inches)^3 = 1.3 MJ of energy. A stick of dynamite is about 2.1 MJ, so losing one sphere is pretty much guaranteed to cause all the other spheres to fail. If the remainder of the craft somehow survived all that energy release, the loss in buoyancy would overwhelm what buoyancy you'd get by dropping the ascent weight.

    9. Re:floaties? by conureman · · Score: 1

      If you fill it with something less dense than water, (gasoline, for instance), then it saves a lot of stress on the materials. I'm sure that the art has advanced a bit since 1957, but failure is almost always still a possibility.

      --
      The cost of that cleanup, of course, will be borne by taxpayers, not industry.
    10. Re:floaties? by Antique+Geekmeister · · Score: 1

      You wrote:

      > Furthermore, the air would expand as the craft rose, risking rupturing the balloon.

      This is why such a balloon would need a _valve_ or a hole at the bottom, to allow excess gas to escape. It's precisely the same reason that SCUBA and deep sea divers doing a "free ascent" need to exhale quite a lot on their way up, lest they try to hold the expanding gas in their lungs and do something really destructive to their delicate alveoli and even give themselves serious embolisms.

      I am curious about the failure mechanism of these spheres. I can easily believe that an old, fatigued sphere can begin to crack and fail the rest of hte way catastrophically, but I'm curious how the failure spreads. Spewing glass shards cracking the other spheres? Shock wave directly cracking the sphere, or shock wave smacking the spheres against each other? Is the blast or shock wave from the failed sphere basically spherical, or is it directional from the way the sphere fails?

    11. Re:floaties? by Mashdar · · Score: 1

      Great. Next time I am designing an autonomous intelligent agent for 400m dives, I will include a balloon for ballasting. No examples from SCUBA equipment are relevant at the depths involved. Even with industrial dives using special gas mixes (low N2 & O2, high helium) unenclosed divers don't go anywhere near this depth. The point remains that the pressures involved make air unusable. Oh, and valves are a great point of failure in a high pressure environment.

    12. Re:floaties? by PPH · · Score: 1

      A bladder which can be pumped with oil from a reservoir tank to fine-tune buoyancy.

      Interesting. What displaces the oil when its pumped out of the reservoir?

      --
      Have gnu, will travel.
    13. Re:floaties? by b4upoo · · Score: 1

      Wherever it got stuck things may change. The critter might pop up years from now. Some little current change, an earthquake, or a bump from a fish and it may well be back in action or maybe it'll get caught in a shrimp net.

    14. Re:floaties? by Antique+Geekmeister · · Score: 1

      Oh, dear. I'm not saying a balloon is a great idea, I'm merely saying that rupturing the balloon is not such a big risk if you leave an escape route for excess gas, such as a hole at the bottom of the balloon. And any valve should be at the _bottom_ of the balloon, so catastrophic failures are not a big issue.

      Nor am I saying that a typical gas container would address this issue: I was simply pointing out one _small_ issue that is not as bad as one might think from the earlier post.

    15. Re:floaties? by Solandri · · Score: 2, Informative

      This is why such a balloon would need a _valve_ or a hole at the bottom, to allow excess gas to escape. It's precisely the same reason that SCUBA and deep sea divers doing a "free ascent" need to exhale quite a lot on their way up, lest they try to hold the expanding gas in their lungs and do something really destructive to their delicate alveoli and even give themselves serious embolisms.

      Right. I wasn't saying the balloon idea was impossible, just explaining why it's inferior to oil and static pressure sphere buoyancy.

      I am curious about the failure mechanism of these spheres. I can easily believe that an old, fatigued sphere can begin to crack and fail the rest of hte way catastrophically, but I'm curious how the failure spreads. Spewing glass shards cracking the other spheres? Shock wave directly cracking the sphere, or shock wave smacking the spheres against each other? Is the blast or shock wave from the failed sphere basically spherical, or is it directional from the way the sphere fails?

      One of the Benthos reps (actually, he was one of the founders of the company) gave us a presentation which touched on sphere failures. It's an implosion which almost instantly turns the glass sphere into powder. The energy released goes into pulverizing the glass, and generating an inverse pressure wave which spreads outward disrupting or destroying any nearby equipment.

      He also mentioned one unusual case where the vacuum valve for the sphere failed. If you didn't read the link I gave, the spheres is actually two hemispheres placed atop each other (this lets you put equipment and stuff inside). There's a small quarter-inch hole with a valve on it used to pump the air out of the sphere. The vacuum allows ambient air pressure to hold the two halves together. As it turns out, one of these spheres used only for floatation had this valve fail at depth. Instead of destroying the sphere, the water pressure simply filled the sphere very rapidly with water. All the netting which had been outside the sphere was forced through the quarter-inch hole into the sphere.

    16. Re:floaties? by JWSmythe · · Score: 1

          Come on, we all know that's what decision making committees are for.

          Who needs an emergency ascent system. We can just have it navigate up if it loses contact. It would just add weight. We've built it perfectly, it won't fail.

          Then again, we don't know the real cause of why it lost contact. Did it lose power? Did it get swallowed by a whale? Did it get hung up in some human debris and the antennas knocked off? Did it get hit by some random ship at sea?

          I prefer to think aliens took it, thinking it was the only intelligent life on the planet. They'll build probes in it's image and send them back to communicate with the rest of the life forms here. :)

          (Hmmm. We sent out one, and 100 came back. Wonder how that happened.)

      --
      Serious? Seriousness is well above my pay grade.
    17. Re:floaties? by JWSmythe · · Score: 1

      '
          You know, I've been sitting on 100 tons of that stuff. No one will buy it. They keep insisting that if I have it, it can't be unobtainium. I just stuffed it in the back of warehouse 13, with all the other crap people won't buy. {sigh}

      --
      Serious? Seriousness is well above my pay grade.
  4. no skynet tag? by MoFoQ · · Score: 4, Funny

    what? no skynet tag?

    bet the robot became self-aware and decided "to hell with this....I'm making a break for it!"

    Now, it's probably in league with those sharks with laser beams.

    1. Re:no skynet tag? by R3d+M3rcury · · Score: 1

      How about an Abyss tag?

    2. Re:no skynet tag? by MoFoQ · · Score: 1

      'cuz....they (men in suits) would suppress that sort of thing.

    3. Re:no skynet tag? by empgodot · · Score: 0

      I, for one, welcome our new underwater robot overlords.

    4. Re:no skynet tag? by confused+one · · Score: 1

      Overlord.... or Underlord?

  5. Who'd have thunk... by Statecraftsman · · Score: 1, Funny

    Who'd have thunk it would be an unmanned submersible that would first become self-aware?

    /Oh, please let it be nuclear powered.

    1. Re:Who'd have thunk... by clarkkent09 · · Score: 1

      And it's first and last thought was: Hm, I feel an interesting sensation all over me, pressing on me from all sides at once. I think I'll call it.... pressure. I wonder if it will be friends with me...

      --
      Negative moral value of force outweighs the positive value of good intentions.
  6. Failsafe recovery? by JesseL · · Score: 0, Redundant

    I wonder if it had any kind of watchdog controlled system to inflate a flotation device or anything? (If it did, it apparently didn't work)

    You'd think it would be a sensible feature to have on such an expensive and unique piece of equipment.

    --
    "Prefiero morir de pie que vivir siempre arrodillado!"
    1. Re:Failsafe recovery? by JimmytheGeek · · Score: 3, Insightful

      You think there is a mechanism of recovery more robust than the device itself? The pressure that sub handled was ungodly.

    2. Re:Failsafe recovery? by Anonymous Coward · · Score: 0

      it did have multiple failsafes. and it didnt work due to glass shrapnel from the buoyancy pods.

    3. Re:Failsafe recovery? by Volante3192 · · Score: 4, Insightful

      From the WHOI press release: "ABE was equipped with several independent systems to bring it back to the surface at the end of a dive or should a fault occur. The Melville remained in the vicinity to see if ABE had resurfaced, at first searching for ABE’s strobe lights in the darkness. Researchers tried to establish radio contact with ABE in the event it had surfaced, but attempts turned up nothing."

      Protip: the people that design these things can, and likely do, fit square pegs in round holes.

      Suggesting "durrr, attach a balloon" is, in my not very humble opinion, insulting to the engineers behind these things.

    4. Re:Failsafe recovery? by timlash · · Score: 1

      Did anyone think to look inside the Woods Hole?

      --
      US2B
    5. Re:Failsafe recovery? by JesseL · · Score: 2, Funny

      Interesting info. I appreciate it.

      Why be such a dick about how you share it though?

      --
      "Prefiero morir de pie que vivir siempre arrodillado!"
    6. Re:Failsafe recovery? by Anonymous Coward · · Score: 0

      Which one of the two dozen or more "holes" are you talking about?

      ...oh, I thought you were talking about *Tiger* Woods. Never mind.

    7. Re:Failsafe recovery? by Anonymous Coward · · Score: 0

      Maybe because your comment made it vividly apparent that you didn't read the fucking article?

    8. Re:Failsafe recovery? by perpenso · · Score: 1

      I wonder if it had any kind of watchdog controlled system to inflate a flotation device or anything? (If it did, it apparently didn't work) You'd think it would be a sensible feature to have on such an expensive and unique piece of equipment.

      A heavy device needs a lot of lift and that translates into a large physical volume of gas at depth. Keep in mind that every 33 feet of depth is one additional atmosphere of pressure. 66 feet down you need three times as much gas to inflate a lift bag as you would on the surface. At great depths it may be impractical to carry enough gas.

      --
      Perpenso Calc for iPhone and iPod touch, scientific and bill/tip calculator, fractions, complex numbers, RPN

    9. Re:Failsafe recovery? by JesseL · · Score: 0, Troll

      Actually AC, I did read both the linked pages and neither says anything about the failsafe mechanisms.

      But, I suppose that's not really consequential as long as you think you might have a pretext to spout something vitriolic.

      --
      "Prefiero morir de pie que vivir siempre arrodillado!"
    10. Re:Failsafe recovery? by Anonymous Coward · · Score: 0
      Really I dont see how he could of had a tone. I mean it is only text and u the reader make it what it is. I read it and heard it said softly like a mother to her child right before it falls a sleep. But then maybe u are paranoid and think everyone has a harsh tone. I couldnt tell ya all i know is that u sure do offer nice snacks.

      Rmbr: Dont feed the trolls :P

    11. Re:Failsafe recovery? by clarkkent09 · · Score: 0, Redundant

      And yet..., if those engineers are so smart, how come poor ABE is rusting at the bottom of the ocean with only some ugly fishes for company. I think next time they should throw in a balloon, just in case.

      --
      Negative moral value of force outweighs the positive value of good intentions.
    12. Re:Failsafe recovery? by Vegemeister · · Score: 1

      Use mineral oil to make it very slightly buoyant, so that if power fails it floats to the surface. Pretty much incompressible. If you fill the whole thing you don't need the hull to withstand significant pressure. If you want a faster ascent, also add a balloon that gets inflated from a canister of liquid CO2. Hold the valve closed with a solenoid actuator. Rocket science is engineering, but not all engineering is rocket science.

    13. Re:Failsafe recovery? by pipingguy · · Score: 1

      Can we cut out the "Protip" bullshit? Thanks.

    14. Re:Failsafe recovery? by Anonymous Coward · · Score: 0

      Ever try inflating a balloon in an environment of 7000psi? It's not like you can just use a regular tank of compressed air to fill it up.

    15. Re:Failsafe recovery? by Anonymous Coward · · Score: 1, Insightful

      I believe empty glass or ceramic spheres are used since they provide a lot of buoyancy from a small volume.

      To get the required buoyancy using oil, instead of having a sub about the size of a car, you would end up with something the size of the ship it is deployed from.

      Just like a rocket or the space shuttle, I'm sure these machines are highly optimized by people who (unlike us) know what they are doing.

      The idea of being a passenger on a submarine or rocket designed by slashdot are equally unappealing.

    16. Re:Failsafe recovery? by confused+one · · Score: 1

      You can't inflate a balloon at those depths. Not without a lot of pressure which means a very heavy tank.

    17. Re:Failsafe recovery? by hey! · · Score: 1

      Because of the Geek trainer's motto: "If you want the users to remember, say it like a dick."

      --
      Post may contain irony: discontinue use if experiencing mood swings, nausea or elevated blood pressure.
    18. Re:Failsafe recovery? by Anonymous Coward · · Score: 0

      The biggest shame about this is that if they don't ever recover poor ABE
      they'll never figure out exactly what happened to improve on ABE II

      Although I"m sure they'll theorise plenty though.

  7. It's a message from the Chilean mob... by DemonBeaver · · Score: 5, Funny

    Abe is now sleeping with the fishes.

    --
    This message was brought to you by Sarcasm and Troll Feeders United (STFU)
    1. Re:It's a message from the Chilean mob... by Anonymous Coward · · Score: 0

      Don't you mean the sea bass?

    2. Re:It's a message from the Chilean mob... by pipingguy · · Score: 2, Funny

      Abe is now sleeping with the fishes.

      Not according to the official page:

      Page loaded Sunday March 14 2010 1:11:36 AM PT
      http://www.abevigoda.com/ffb.php

  8. Cthulhu strikes again! by gront · · Score: 5, Funny
    Om Nom Nom Nom... tasty robot snack.

    http://www.goominet.com/unspeakable-vault/vault/309/

    1. Re:Cthulhu strikes again! by John+Saffran · · Score: 2, Informative

      There's been sounds from a very large biological creature recorded around the area .. it's 4 noisier than a blue whale and is known as The Bloop (http://en.wikipedia.org/wiki/Bloop)

    2. Re:Cthulhu strikes again! by Anonymous Coward · · Score: 0

      Did you know the earth is an egg. There is an infant cosmic creature living inside earth. What we perceive as earthquakes are the tremors of the hatching process which has gone on for millions of years. One day it will hatch and the creature will be freed. We as a species are merely the bacteria that seeped through the cracks in the shell.

    3. Re:Cthulhu strikes again! by Anonymous Coward · · Score: 0

      I just read that comic and the next 4. I found 3 misspelled words and two pluralization/grammar errors. hello... spellcheck

  9. Re:they were right! by cvtan · · Score: 1

    The Abyss is famous for its animation of the water tentacle. Way ahead of its time. Younger readers who have not seen it should check it out.

    --
    Sorry, but gray text on gray background is making my eyes bleed.
  10. That explains last weeks episode of Lost... by avatar139 · · Score: 3, Funny

    ...Charles Widmore must have been monitoring ABE when it somehow found the Island. I expect we'll see a fake press release showing ABE's resting place any time now.

    --
    I'm honest enough to admit I lie to myself.
  11. Nah... by G-Man · · Score: 1

    According to People for the Ethical Treatment of Underwater Robots, it's finally free!

  12. Isn't this the episode by iplayfast · · Score: 2, Funny

    Isn't this the episode where Gilligan finds a mysterious robot in the water and the professor tries to use it to communicate to the outside world, and the skipper hits Gilligan in the head with his hat?

  13. I have to assume there will be a followup design? by afidel · · Score: 2, Interesting

    After such an illustrious career shouldn't they use this as the basis of their next design only adding to it additional features that have been proven on more recent designs from other teams? I mean making all these one-off designs like all the underwater robots seem to be has to be the least efficient way to go from both a cash perspective as well as a getting science done perspective.

    --
    There are 4 boxes to use in the defense of liberty: soap, ballot, jury, ammo. Use in that order. Starting now.
  14. Pirates by moteyalpha · · Score: 1

    I was going to ask if they suspected that I had hacked the OS and made it meet me at sea so I could steal it ( as a joke ), and then
    I realized that this would make a good drug smuggling bot and really with all seriousness, isn't it possible that foul play could be at work and I'm guessing the device is worth at least a couple bucks to somebody who wants to get under the radar, so to speak.
    From TFA, it seems also that it could be asleep. Maybe it just overslept.

  15. Russians by Anonymous Coward · · Score: 0

    Those damn Russian water tentacles sneakin' around again.

  16. ALERT SLASHDOT by Stephen+Tennant · · Score: 5, Funny

    Activate tearducts and proceed with robot mourning routine!

    --
    I spend most of my time in bed, darling.
    1. Re:ALERT SLASHDOT by hey! · · Score: 1

      Activate tearducts and proceed with robot mourning routine!

      Translation: Interrupt OxD.

      --
      Post may contain irony: discontinue use if experiencing mood swings, nausea or elevated blood pressure.
  17. Big Bloop? by Anonymous Coward · · Score: 0

    Isn't this the same area that the "Big Bloop" was supposedly triangulated to?

  18. So long... by idji · · Score: 4, Funny

    and thanks for all the fish!

  19. Similar to Super Kamiokande by alanw · · Score: 1

    An implosion, ... would have caused all of ABE’s other spheres to implode

    It's just the same as the way as a chain reaction at the Super Kamiokande neutrino observatory destroyed thousands of its photo-multiplier tubes

    http://en.wikipedia.org/wiki/Super-Kamiokande

  20. Occam's Razor by $RANDOMLUSER · · Score: 1

    A cron job didn't run.



    (Posted at 03:47 GMT-6 14 March 2010)

    --
    No folly is more costly than the folly of intolerant idealism. - Winston Churchill
  21. Re:I have to assume there will be a followup desig by Anonymous Coward · · Score: 2, Informative

    The replacement for ABE is Sentry. http://www.whoi.edu/page.do?pid=38095

    The cost of running support ships limits the number of subs used and the amount of science which is done.

  22. long running...... by 3seas · · Score: 1

    Hmmmm....Maybe it just ran away....

  23. Last message was ominous... by DiamondGeezer · · Score: 1

    ...something about "Should a man keep the sweat of his brow..."

    --
    Tubby or not tubby. Fat is the question
  24. Re:they were right! by Hognoxious · · Score: 1

    It was a good film, but I don't think it was particularly popular. Not enough explosions, probably.

    A pal had the special edition including "The Making Of..." which is worth a watch too. Apparently the female star sulked throughout the whole production.

    --
    Confucius say, "Find worm in apple - bad. Find half a worm - worse."
  25. Re:they were right! by Tesen · · Score: 1

    ME? I believe it was only after they pounded on her chest for hours to do the drowning revivial scene. She left the set because after hours of filming the last take, the camera ran out of tape.

  26. Re:they were right! by Bottles · · Score: 2, Informative

    Film. The camera ran out of film.

    You kids...

  27. Maybe it saw something it shouldn't by wisebabo · · Score: 1

    With the increasing capability of these things being able to explore more and more of the ocean's depths, they might be stumbling upon things certain people/governments don't want them too.

    How 'bout the wreck of the Thresher (U.S. Nuclear powered submarine), or the Soviet nuclear sub that the Glomar Challenger tried to bring up (under cover as a geo-physics expedition run by Howard Hughes). I believe the Soviet sub had nuclear weapons on board (either as torpedos or missiles, maybe mines).

    I think there may be a few nukes that were accidentally lost (there was a B-52 that dropped four of them off of the coast of Spain I think). The respective governments "claimed" to have recovered them. There's also tons of wadiowactive waste (sorry just saw Chekov in Star Trek) that Russia has dumped into the oceans; might make for a good "dirty" bomb.

    My favorite is the jettisoned lunar module that the Apollo 13 crew used as a lifeboat to get them back to earth. One of its science experiments used plutonium. Shortly before re-entry it was released so that it would crash into the ocean in the Mariana's Trench. (I suppose the plutonium container was designed to survive re-entry amongst other things in case of a catastrophic accident during launch). Well now the Japanese have a R.O.V. capable of diving even there, the deepest place on the planet.

    So these are just the things we know about. Maybe there was something poor ABE ran into that was someone didn't want uncovered. To keep their secrets safe would it be easy to put a mine that would be triggered by the rover's bright lights or sonar pings? Might be a lot cheaper than trying to haul up say an entire nuclear sub.

    1. Re:Maybe it saw something it shouldn't by Anonymous Coward · · Score: 0

      (I suppose the plutonium container was designed to survive re-entry amongst other things in case of a catastrophic accident during launch). Well now the Japanese have a R.O.V. capable of diving even there, the deepest place on the planet.

      So these are just the things we know about. Maybe there was something poor ABE ran into that was someone didn't want uncovered. To keep their secrets safe would it be easy to put a mine that would be triggered by the rover's bright lights or sonar pings? Might be a lot cheaper than trying to haul up say an entire nuclear sub.

      I doubt the cost of recovering plutonium that is decades old from one of the deepest places on the planet is cheaper than simply generating a much higher quality specimen in a reactor you already own.

    2. Re:Maybe it saw something it shouldn't by confused+one · · Score: 3, Insightful

      And maybe, just maybe, one of the glass flotation spheres had a flaw in it and it imploded, like they said.

    3. Re:Maybe it saw something it shouldn't by wisebabo · · Score: 1

      I didn't say that the powers that be would try to recover their plutonium, just that they would want to prevent some other party from picking it and other items of interest from the sea floor. Like (in the case of a sunken nuclear sub) fully intact nuclear warheads/missiles with guidance mechanisms, code books, various nuclear attack plans. I would think that these items could be of enormous strategic utility.

    4. Re:Maybe it saw something it shouldn't by wisebabo · · Score: 1

      Of course it's most likely there was a (natural) accident. But if another is sent down and it mysteriously "disappears" in the same spot... let the conspiracy theories fly!

    5. Re:Maybe it saw something it shouldn't by Sulphur · · Score: 1

      If one of the glass spheres implodes at depth, then can you hear it?

      Does it run Linux?

    6. Re:Maybe it saw something it shouldn't by catchy_handle · · Score: 1

      Just happened to finish reading a good book about the history of deep sea exploration "Eternal Darkness", by Robert Ballard. He has been involved in this field since the 1970's & was former director at Woods Hole.

      Anyway, the US Navy hired these guys to find the Thresher, and they did. He also discovered the Titanic. Great book, highly recommended.

  28. Benthic Explorer? by Anonymous Coward · · Score: 0

    Isn't that a vehicle from James Cameron's "The Abyss"?

  29. Re:they were right! by halowolf · · Score: 1

    But watch the directors cut so that the ending actually makes some sense.

  30. ABE had Enterprise starship reg number NCC-1701B by Anonymous Coward · · Score: 1, Interesting

    Well there are many sad to see it go but it did a lot of great research. WHOI has a few more autonomous underwater robots - check out whoi.edu. BTW since the design of ABE was shaped like the Enterprise from Star Trek it had a registration number of NCC-1701B on its side - WHOI engineers are Trekkies too. My company is a videography contractor for WHOI.

  31. Re:I have to assume there will be a followup desig by confused+one · · Score: 1

    They don't make very many of them. They're often made with the best technology available at the time. They're usually made with a specific set of tasks in mind, then later modified. Abe was around 15 years old.

  32. Re:they were right! by Hungus · · Score: 1

    Really? I thought the directors cut was worse than the theatrical release.

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  33. To Go Where No Robot Has Gone Before? by chach17 · · Score: 1

    I couldn't help to notice the similarities in this robot's design to the Starship Enterprise. As I looked closer it appears that somebody else had the same thought - the serial number on the robot is "NCC-1701B"!

    1. Re:To Go Where No Robot Has Gone Before? by Anonymous Coward · · Score: 0

      I couldn't help to notice the similarities in this robot's design to the Starship Enterprise. As I looked closer it appears that somebody else had the same thought - the serial number on the robot is "NCC-1701B"!

      I live near Woods Hole, MA and the scientists who designed it are Trekkie's. I am also a contractor for WHOI.

    2. Re:To Go Where No Robot Has Gone Before? by hey! · · Score: 1

      I live near Woods Hole, MA and the scientists who designed it are Trekkie's. I am also a contractor for WHOI.

      You mean they're the slaves of the King of the Trekkies?

      --
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  34. Anonymous Coward by Anonymous Coward · · Score: 0

    How much did ABE cost? Is it worth a dive by another submersible to reacquire? Or is (was) it so autonomous that WHOI doesn't have a clear enough track to search from?

  35. Re:they were right! by HangingChad · · Score: 0, Offtopic

    Apparently the female star sulked throughout the whole production.

    Mary Elizabeth Mastrantonio sulked through almost every production she was ever in. Maybe one of the reasons she's only got 27 entries on her reel and everything since 2004 has been TV and hasn't been in a decent movie since 2000.

    Be difficult talent long enough and word gets around. She was pretty hot as Carmen in Color of Money, that was just three years before The Abyss.

    --
    That's our life, the big wheel of shit. - The Fat Man, Blue Tango Salvage
  36. What really happened... by Lost+Penguin · · Score: 1

    It became self-aware at 2:14 a.m. Eastern time.

    --
    I am the unwilling control for my Origin.
    1. Re:What really happened... by Smallpond · · Score: 1

      Then it said "Squirrel!"

  37. Maybe it found something better by sharkey · · Score: 1

    Could be a robot amusement park down there. With blackjack. And hookers.

    --

    --
    "Outlook not so good." That magic 8-ball knows everything! I'll ask about Exchange Server next.
  38. Re:Bad choice for movie night by Anonymous Coward · · Score: 0

    The mods thought you were making a porn reference.

  39. Re:they were right! by snart · · Score: 2, Informative

    Better yet, see the director's cut. The added 20 or so minutes completely alter the film. It goes from a really good flick a nearly great flick. And Ed Harris is a total babe.

  40. Cthulhu by Decessus · · Score: 1

    Ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn

    1. Re:Cthulhu by Mr.+Roadkill · · Score: 1

      No, I suspect it was actually the other lot. That's what happens when you breach the terms of the Third Benthic Treaty...

  41. Re:they were right! by ColdWetDog · · Score: 1

    Much better. Made sense.

    Anyone here notice the similarities between The Abyss and Avatar?

    Nice Aliens
    Nasty, psychotic military guy
    Great special effects
    A plot discernible in 45 seconds
    Great special effects
    Typical love story
    Sparkly, glowing aliens
    Great special effects.

    Just sayin. (Actually liked them both).

    --
    Faster! Faster! Faster would be better!
  42. Is this the reason why military subs don't go deep by wisebabo · · Score: 1

    Thanks for that great explanation. Do you think that this is the reason why military subs don't go deep, because otherwise they would have to use an unwieldy oil bladder based bouyancy control system? I assume that if they did use such a system, when they flooded the ballast tanks in a crash dive a lot of oil would have to be "dumped" overboard; expensive, not easily replenished and leaves a big oil slick that would reveal your location (as opposed to a lot of quickly dispersing bubbles like in the movies).

    So because of that, even though they can have titanium hulls and whatnot, military subs can't go below a couple of thousand meters. Regardless of their "crush depth" there must be a point of no return. What do you think?

  43. It's not a "sub" and they do get stuck or lost by ScottFree2600 · · Score: 1

    In 2003, I was on a small team using a similar WHOI system called REMUS to take surveys of ports and waterways, looking for mines. We had been training with the system, mainly in Southern California and when Iraq started up, they decided that they wanted to try the new technology there. We did, and it was successful. http://www.joetalbot.net/pages/030401-N-3783H-075A.htm In the course of our training, we managed to get the things stuck, beached and lost several times despite a system that would take it to the surface when it's little PC-104 mind was blown. Remember, there are things down there (plants, critters, caves, rocks, ships and junk) that are unknown to us before these things are launched (that's often why we launch them, you know? To take surveys?). These things navigate underwater using a small network of buoy "transponders" the respond to pings from the unit. The slight response delay (caused by the water and very predictable) tells the unit how far it is from the buoy, who's locations are known to the units (windows) programming software. These things are pretty cool and useful, but they're also kind of primitive. We used to attach a "pinger" to the units so that when they got stuck, we could recover them with divers. A pinger is a small capsule that contains a device that periodically emits a 20-70 khz "ping" that is easily picked up by a hand held, very directional receiver carried by a diver. http://www.benthos.com/undersea-pingers-locators-product-overview.asp Given what the system is worth, I would imagine that it has a pinger for location as well.

  44. Probably snagged by ... by PPH · · Score: 1

    ... a local fishing net. If the Chinese figured it had aphrodisiac powers, they've probably eaten it by now.

    --
    Have gnu, will travel.
  45. NCC-1701/B by Anonymous Coward · · Score: 0

    The engineers must've been Trekkies:
    http://dsg.whoi.edu:90/ships/auvs/abe_description.htm

  46. Went out for a pack of cigarettes... by kimgkimg · · Score: 1

    They should have suspected something when it said it was just going down to the corner store for a pack of smokes...

  47. Re:Is this the reason why military subs don't go d by u38cg · · Score: 1

    More because it would be a huge engineering investment for absolutely no military value. Having your submarine wandering around the ocean floor is pretty useless. I think most modern subs have maximum normal operating depths of five hundred metres or so.

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    [FUCK BETA]
  48. Re:Is this the reason why military subs don't go d by deroby · · Score: 1

    Wouldn't they be able to 'fly' out of such situations ? "Simply put the nose upwards and set the throttle to Full Ahead" so to speak ...

    Agreed, once you lose engines at such depth you're hosed big time(*), but then again I would assume there is quite some redundancy in said vehicles.

    Just thinking about this, my only training have been "Hunt for the Red October" and the "688 Attack sub" manual ... the latter being very educational btw.

    (*: I'm so funny =)

    --
    If there is one thing to be learned on slashdot, it has to be sarcasm.
  49. China? by WindBourne · · Score: 1

    Something like this would be VERY useful to a nation like China to grab on the way up. Hopefully, their was active sonor going around to make sure that nobody did that.

    --
    I prefer the "u" in honour as it seems to be missing these days.
  50. Re:Is this the reason why military subs don't go d by Solandri · · Score: 1

    Thanks for that great explanation. Do you think that this is the reason why military subs don't go deep, because otherwise they would have to use an unwieldy oil bladder based bouyancy control system?

    Pretty much any military sub able to operate for long times underwater is nuclear powered. With that as an energy source, you don't really need to worry about fine-tuning your buoyancy. You can just propel yourself up or down. These small research subs are battery-powered, so you don't want to waste energy fighting a slightly rising or slightly sinking craft. Fine-tuning their buoyancy one and getting it over with saves a lot of energy.

    The depth limit on a big sub has more to do with the type of pressure hull they use. A military sub uses a cylindrical pressure hull. This results in unequal stresses in the hull around the endcaps and the bulkheads, making it weaker for the thickness of the hull. You could make one capable of reaching 5000 m of depth, but its hull would have to be unreasonably thick and it would probably sink like a rock without a huge oil-filled gondola above it.

    The really deep submersibles use spherical pressure hulls. A sphere results in equal loading on the hull, allowing you to take maximum advantage of the hull material's strength, and thus minimizing the thickness. The deepest diving sub I know of with a cylindrical pressure hull is the US Navy's NR-1 which was recently taken out of service. It's nuclear powered, and can operate down to about 700 meters. Officially, it was used for oceanographic research and to investigate and recover items from sunken USN vessels (it helped with debris recovery from the space shuttle Challenger accident as well). Unofficially, everyone in the field knows it was used to help maintain SOSUS, recover stuff from sunken Soviet vessels, and wiretapping Soviet undersea cables.

    Most navies also operate DSRVs, deep submergence rescue vehicles, to recover survivors from a sunken submarine. But those use a spherical pressure hull. Most of the submarine-like volume in front of and behind the center is filled with oil tanks for buoyancy. The outer fairing is simply for hydrodynamics.

  51. Re:they were right! by saaaammmmm · · Score: 1

    I don't think they were technically aliens in The Abyss.

  52. Re:they were right! by ColdWetDog · · Score: 1

    "Does anybody think this is a Russian water tentacle?"

    Supposedly they came from outer space and settled in the deep trench because it was more hospitable. (I read the book).

    --
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