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Scuba-Doo Underwater Scooter

hawado writes "Just when you thought it was safe to go in the water, 'Fans of the Segway scooter now have a way to look just as silly traveling underwater as they do on land thanks to the efforts of an inventive Australian company.' 'The Scuba-Doo comes with everything you would want in a submerged Segway.' I just don't know what to say, but I am sure all you /.rs will have some really great comments. The company's web site can be found here."

62 of 313 comments (clear)

  1. Not for Everybody, or is it? by pholower · · Score: 4, Interesting
    At nearly $14,000, I don't see this catching on to the independent consumer. Mostly just recreation dive companies, and resorts. I like the idea, however, the battery lasts 1.5 hours, and the air only lasts 1 hour. I think I would like the air to last longer than the battery, you know, just in case something catastrophic happens.

    Also, I worry about the company's legitimacy, have you been to their website. That is the worst photoshop work I have ever seen. Plus, they repeat what is on the front page on all of the their pages. Which, if you were counting, for individuals like myself, is only 3 pages total. I WANT MORE INFORMATION

    --
    -- johntracy.com, because everybody else is wrong.
    1. Re:Not for Everybody, or is it? by ObviousGuy · · Score: 2, Informative

      Yes, it is designed (the ones I've seen) for dive companies. The lack of air is not a big deal, the usual length of these underwater rides is only twenty to thirty minutes. Also, the depths to which the operators permit the skooters to go is never more than 30 feet, so even if an accident were to occur, the tour operator is able to dive down and rescue the rider.

      But I'm still not sure what is so new about this.

      --
      I have been pwned because my /. password was too easy to guess.
    2. Re:Not for Everybody, or is it? by plsander · · Score: 2, Informative

      But remember when swimming up, exhale. Very Very important.

      One of the counter-intuitive ways to die while diving.

    3. Re:Not for Everybody, or is it? by vivian · · Score: 4, Informative

      The real problem is that at 10 meters you dont want to be staying under water for anything more than about 60 minutes, due to nitrogen build up. You are still breathing pressurised air, as you do in scuba - it is not a pressure vessel like a submarine where you are breathing atmospheric pressure. Therefore you will be subject to the same dangers and limitations that a scuba diver faces. A dive computer can track the nitrogen better and gove you longer (and more exact) dive times, but the safety margin is then reduced. A 15 meter dive would rarely be longer than 45 min. 30 meter dive: 20 min or so, depending on your exact dive profile.

      Here are the dangers facing both a scuba diver and a scuba-doo pilot:

      1) Nitrogen buildup, which limits the duration and depth of a dive. Even with unlimited air, you have this problem as your tissues become saturated with nitrogen. The deeper you go, the faster you absorb nitrogen ( because the partial pressure of nitrogen is greaer). if you get too much, it is no longer posible to come up to the surface in case of an emergency, or you will get the bends. If you get too much nitrogen in your system, you effectively have a "ceiling" over your head that you cant go through, and you might as well be diving in a cave or something. Recreational diving tables are designed so that this never happens. (ie. you never have to do a decompression stop)
      although usually you do a 3 minute "safety stop" at 5 meters to reduce this danger still more.

      2) below about 18 meters, you will start to get the effects of Nitrogen Narcosis. This effectively is like having a couple of beers or a spliff or something, and affects both your judgement and motor skills. When I did my rescue diver course, I had this demonstrated to me with an excercise:
      Do some simple calcs on a slate just under the surface, and again at 18 and 30 meters. It took twice as long to do calculations at 18 meters compared to just under the surface. The deeper you go the worse the problem gets, and if you are not experienced with it it's easy to go dancing with the mermaids or go chasing those pretty alien lights down the abyss.

      3) It is still possible to get air embolisms if you hold your breath as you are surfacing. If you are holding 1 litre of air in your lungs at 20 meters will become 2 litres of air at 10 meters and 4 litres at the surface.

      That's why divers spend time in a classroom - not to learn how to put on their fins or something, but how to survive when in a totally alien environment. This training shouldnt be skipped, as all the same risks still exist.

      The dangers, especially the air embolism ones are still there even between 0 to 10 meters. infact, the airembolism ones are greater in this depth range, because the pressure(and hence volume) changes so rapidly over the short distance. At greater depths, say for going from 40 to 30 meters, the volume change is only about 20% (ie. 5 atm -> 4 atm) instead of 100% (ie. 2 atm -> 1 atm).

      Oh, and by the way, the Scuba-doo factory is just up the road from my house. The things look a bit like those BMW scooters that have an enclosed canopy.

    4. Re:Not for Everybody, or is it? by XorNand · · Score: 4, Insightful

      At the depth these things are designed to be used nitrogen narcosis isn't going to be an issue.

      Having said that, anyone who does go to a depth where safety is a concern should already be dive certified and gotten their advice from someplace other than /. That's the whole point of certification.

      --
      Entrepreneur : (noun), French for "unemployed"
    5. Re:Not for Everybody, or is it? by Windsurfer · · Score: 2, Informative

      > But remember when swimming up, exhale. Very Very important.

      At the depth these things are designed to be used nitrogen narcosis isn't going to be an issue.

      I think you've misunderstood the parent poster's point - he's not talking about nitrogen narcosis, but the fact that at a depth of 30 feet, the air in your lungs will be at a pressure of about 2 atmospheres. If you swam up to the surface and held your breath, that air will expand as you rise, until at the surface you would have twice the volume of air in your lungs, which would be unpleasant to say the least!

    6. Re:Not for Everybody, or is it? by Guido+del+Confuso · · Score: 2, Informative

      Nitrogen narcosis isn't the problem. Having your lungs explode because of the decrease in pressure is the problem. Even at 30 feet (~1 atm), air has only have the volume it does at the surface. So, when you go up but don't exhale, you've got twice as much air (by volume) in your lungs. And then you die.

    7. Re:Not for Everybody, or is it? by niew · · Score: 2, Insightful
      Nitrogen tissue loading, too rapid ascent and decompression sickness after being submerged for up to an hour is an issue.

      Getting bent isn't even the issue here... These things are meant for toddling along a reef at 30 ft and up. At that depth USN gives you about 4 or 5hrs (I don't have my tables in front of me...). Even DCIEM gives you over 2hrs (150mins if my memory serves).

      The issue here is air embolism, where your lungs burst due to trapped expanding air as you go from 2atm (30ft) to 1atm(surface) and the volume of that air doubles... (*splat*) :(

    8. Re:Not for Everybody, or is it? by niew · · Score: 2, Insightful
      True with a proper ascent it isn't an issue but what happens when joe user gets freaked out by that eel snapping at his heel and points straight up

      Indeed. This does nothing to stop someone from panicing and bolting to the surface (likely holding their last "SCUBADOO" breath all the way).

      The thing that bothers me about these gagets that you see from the dive industry periodically is that they often offer them as an alternative to proper training.

      SCUBA is a safe sport, _but_, it is very unforgiving to mistakes and that's why proper training is so important.

      You sound like a diver yourself!

    9. Re:Not for Everybody, or is it? by vivian · · Score: 3, Insightful

      Ok, I'll bite..

      This applies only to PADI recreational dive tables. Divers who've been trained properly (eg by BSAC) often use decompression tables.


      Which is great so long as you have pleny of reserve air and backup and no accidents - but totally screws you if you *have* to come up due to equipment failure or injury or something. I am not particularly religious about PADI vs NAUI vs BSAC etc, but you have to admit, unless you diving to save lives or you are getting paid serious coin to do it as part of a prefessional career (eg. on an oil rig), it's pointless taking the risks of deco diving just for a bit of fun when you can see the same stuff without the extra risk. If you think diving tables designed to avoid deco stops are for whimps, then please make sure you don't go diving with insurance - because I dont want my insurance premiums pushed up when you have to be airlifted to a hyperbaric chamber.

      All that aside, I just wish I had more time to go diving - and I think it's great that this thing will help others enjoy the wonders of the under water world. I just hope the users get appropriate training on the risks, instead of brushing all diver education off as unneccesary.

    10. Re:Not for Everybody, or is it? by ksheff · · Score: 2, Insightful

      It's probably not meant for people who really want to do scuba diving. Cruise ships and resorts will be the biggest customers so retired people can take underwater tours that will take them to maybe 3-4 feet under.

      --
      the good ground has been paved over by suicidal maniacs
    11. Re:Not for Everybody, or is it? by ArsenneLupin · · Score: 5, Informative
      I have dived without scuba gear (mask, snorkel and a jumbo flippers only) to 12m (36 ft). Do not remember anything like that.

      If you dive without scuba gear, the problem cannot happen. You cannot have any more air in your lungs than you started with at the surface. Think about it. Your lungs will feel slightly crushed when going down, and expand back to normal size when going up. No problem.

      Incidentally, you cannot have any more nitrogen in your tissue than you started with at the surface either. That's why the guys in Le Grand Bleu were able to go down to a depth of 100 meters, and up again whithin a couple of minutes, without feeling the bends.

      The danger of scuba is that you add air (and nitrogen) to your body while at depth, and this air will expand in your lungs if you go up.

    12. Re:Not for Everybody, or is it? by MikeHunt69 · · Score: 2, Informative
      You will have problems if you have been scuba diving before free diving. You will still have nitrogen bubbles in your system and when you freedive, they will get worse. You can get bent this way and people have died from doing this.

      I've also heard the story of the freediver who took a lungful of air from a scuba diver at depth. The freediver didn't know about scuba, so he didn't exhale as he ascended. Ended up with a burst lung.

    13. Re:Not for Everybody, or is it? by Tri · · Score: 2, Insightful
      Spending longer underwater won't increase the level of nitrogen narcosis you get. It only seems to depend on the partial pressure of nitrogen you're breathing in.


      I believe there's annecdoctal evidence that the speed at which you increase this pressure has an effect, but I have never seen/heard of any studies on this. It certainly seems to match my experience though. Descending slower seems to not cause as much nitrogen narcosis as descending like a lead weight

  2. Design Flaw? by fake_name · · Score: 5, Funny

    I don't like the way you start to drown as soon as you fall off. :-)

    1. Re:Design Flaw? by OverlordQ · · Score: 2, Funny

      Atleast when the batteries run out you wont land on your face.

      --
      Your hair look like poop, Bob! - Wanker.
  3. hrm... by CmdrMooCow · · Score: 3, Interesting

    Sounds like a lot of fun....

    Just wait till someone swaps the engine in it....
    I wonder how fast that can go and still be "safe".

    Underwater bike races! whee.

  4. Are these new? by ObviousGuy · · Score: 5, Interesting

    I've ridden on very similar underwater skooters like this years ago. They've got these in just about any snorkel/scuba sites that are primarily tourist areas. Hawaii, Micronesia, Polynesia, the Caribbean, etc. all have tourist excursion packages that include riding these things.

    Next week will we be hearing about snuba?

    --
    I have been pwned because my /. password was too easy to guess.
  5. Right after the site gets slashdotted.... by LGagnon · · Score: 5, Funny

    ... you're all free to say "Scuba-Doo, where are you?"

  6. Difference between this and the Segway by macshune · · Score: 3, Funny

    Well, this costs as much as some new cheaper cars. It also, arguably, looks cooler than the Segway and travels underwater without the usual scuba gear / complicated breathing apparatuses. if i was rich, bored and wanted to have underwater paintball fights / play submarine bumper-tag, i'd buy one!

    [sean connery] Sho Q, what do you have for me thish time? [/connery]

    1. Re:Difference between this and the Segway by gregmac · · Score: 2, Insightful

      ride one of these and get to go down 20 or 30 feet without any discomfort and weight of scuba gear on my body.

      And instead be comfortable straddeling this huge scooter thing underwater, with a limited field of view and awkward mobility? Please..

      With a good instructor, you'd probably be able to go underwater on scuba with about 30 minutes of training (obviously they're not going to teach you everything, but enough fundamentals to be able to do it fairly safely). You don't really notice the gear at all, its definately not uncomfortable.

      As far as weight .. that's an important thing to have to be able to go under. Without that feeling of 'weight' on your body, you'll be stuck floating at the surface. In reality, you just become neutrally bouyant underwater, so don't notice it. It's only once you get out of the water that the gear is heavy. :)

      Although I've never used one, I've heard DPV's are great fun. Just by looking at one, I would bet that it's a hell of a lot cooler than this ScubaDoo contraption.

      If you're going to do scuba though, do it right. I just started this year (PADI), and I love it.

      --
      Speak before you think
    2. Re:Difference between this and the Segway by cgenman · · Score: 2, Funny

      Similarities between this and the seaway.

      * Extremely dorky
      * Overpriced
      * Saves people the arduous task of using their legs
      * Gets lots of awkward stares

      Differences

      * Likely to get you killed
      * Makes money

      Hence, I would like to suggest the Segway XTREME! The Segway XTREME is powered by Nitrous Oxide, with a 0-60 time of 3.9 seconds. Spring-loaded spikes burst forth from the handlebar at the first sign of a crash. Plus there is a 20 foot metal rod attachment for those of you living in storm country or near power lines.

      Live dangerously. Give us money. Segway XTREME!

  7. Just wait until... by mcnut · · Score: 4, Funny

    a) someone runs their battery dead and drowns. b) someone runs into something, breaks the seal on the helmet and drowns. c) someone takes it to a depth at which the glass bursts under the pressure and drowns. d) someone gets run into by a frigate,yacht or even a jetski because they are too close to the surface, runs out of battery power whilst they are unconcious and drowns... I just don't see the fun in drowning...

    --
    ok.. so heads you lose tails I win. right?
  8. I think it is legit by Relyt · · Score: 2, Informative

    I have seen pictures of this elsewhere, I believe in a magazine. So I get the feeling that they do indeed exist, and the company is legitimate.

    However, that does not make them any less stupid...

  9. Picture by gooru · · Score: 4, Funny

    After seeing that picture, I sure want to go buy the product. She just looks so happy, as if she'll suffocate with joy riding this thing.

  10. This fills an important niche. by JayBees · · Score: 2, Funny

    Until now, Snorks had to swim or ride seahorses to get from point A to point B. The underwater Segway will fill the niche in-between, and ultimately result in Snork cities being completely built around this wonderous new technology.

  11. Mystery Machine by Prometheus+Bob · · Score: 3, Funny

    Oh yeah, I remember this. This was in the episode with the underwater ghost dude, right?

  12. yeah by User+956 · · Score: 4, Funny

    Australia, eh? Swim in the wrong place with this "Scuba-Doo" and a shark'll turn you into a nice "Scuba-Snack".

    --
    The theory of relativity doesn't work right in Arkansas.
  13. Trademark infringement? by tepples · · Score: 2, Interesting

    You're right. What would Hanna-Barbera, the owner of the SCOOBY-DOO trademark, have to say about this? Under the Trademark Dilution Act and foreign counterparts, the rule about separation of fields of use don't apply to trademarks as famous as SCOOBY-DOO(R).

    1. Re:Trademark infringement? by Trejkaz · · Score: 4, Funny

      Ruh-roh!

      --
      Karma: It's all a bunch of tree-huggin' hippy crap!
  14. Yawn. by Anonymous Coward · · Score: 2, Insightful
    As somebody who's just starting out on a scuba course, I'm not particularly interested. I'd rather be in my own mask, wetsuit, fins, etc., and exert myself a bit more, in exchange for a better all round view of what's in the area.

    With this thing, you're limited in your visibility; I'd be surprised if you could turn it to look straight down. Also a bit difficult to turn around in a hurry to look at a school of fish (or a shark, or a mantray, or similar) that's just swum behind you.

    Thanks, but no thanks. If it works for you, great. It doesn't for me.

  15. Great idea... Except it sucks. by mikemacd · · Score: 5, Insightful

    As a trained diver I can evaluate the personal risks involved in my sport and decide wether or not to engage in it. I think that this device will encourage untrained people to do things which can end up with them being DEAD or crippled.

    It is too easy to get your eardrums blown in or your lungs burst, or drown unless you've had the appropriate training.

    There are already DPV's (Piver Propulsion Vehicles) on the market for those who dont want to fin their way around the bottom. I think that this product will cause plenty of problems.

    1. Re:Great idea... Except it sucks. by dwillden · · Score: 2, Insightful
      Amen, I looked through the ScubaDoo site and the scariest thing there was the comment "No lengthy courses, get underwater sooner and enjoy the wonderful experience." YIKES!!!! The purpose of those "lengthy courses" is to teach you how to stay alive and unbent. Numerous /.'ers have made comments about the risk of drowning, the much greater danger is the risk of Decompression Sickness AKA the Bends. The company site gives no info on max depth or limiters on rate of ascent/decent. The first time some vacationer spends the hour the site predicts at 30 ft and then decides to shoot right to the surface, they are going to be spending time in a decompression chamber, if they are lucky.

      My second main concern is the weight issue, It weighs 94 pounds. Thats nice but more importantly how buoyant is it? What happens when the very dense (non-buoyant) rider has a motor failure at depth, Can they perform a safe ascent, or is their only shot at life to blow the tanks and play polaris missile(Extremely dangerous), or is it to abandon ship and swim rapidly to the surface, which is also extremely dangerous as their instinct will be to hold their breath which will result in popping their lungs. Scuba training includes training to NEVER hold your breath.

      Those are just a couple concerns and issues I see with this device. It looks very dangerous to me, and drowning is the least of my concerns.

      I've only been diving for a couple years, any other, more experienced divers care to add their $0.02?

      --
      I'm too lazy to compose a creative sig.
    2. Re:Great idea... Except it sucks. by trewornan · · Score: 2, Insightful
      I think this product is awesome. Elitist "I'm so highly trained" wankers like you will have to share the oceans... no doubt that's your real problem with this.

      I could just say to you - "I don't care go out and kill yourself" but I'm actually trying to warn you for your own benefit.

      Diving is inherently dangerous, people are not designed for spending any length of time underwater and you need a complex life support system which requires training to use safely.

      Most divers are not particularly "highly trained", they basically just get taught the minimum required to get them back to the surface alive.

      If you want to go underwater, go in a tourist submarine or get trained for scuba (it's not terribly difficult).

      Divers aren't trying to be elitist when they tell people not to dive without training - it comes from genuine concern for their lives.

  16. Voice activated... by LostCluster · · Score: 2, Funny

    If you ever lose it... you just have to yell out the following command to make it come to surface:

    "Scuba-scuba-doo, where are you?"

  17. I know what this is. This is a big joke. by Stopmotioncleaverman · · Score: 3, Funny

    Look. All someone's done is taken the front of a Stormtrooper mask, cut some chunks out of the sides, painted it yellow, and stuck in an incredibly photoshopped woman.

    I mean, her arms appear to be coming from her breasts, if her head's attached to her body like that then she's got incredibly bad scoliosis, and the bottom half of her bikini appears to have been drawn onto her body by an epileptic kid using a pre-alpha version of MS Paint whilst in the middle of a tonic seizure.

    Her face also appears to be, for reasons unknown, forced against the front of the plexiglass screen with some incredible force.

    Clearly some huge conspiracy :)

  18. Also known as BOB by Isao · · Score: 4, Informative
    As seen and rented here, here, here, etc.

    I've done it - snuba is more fun, but this can be less intimidating for inexperienced people.

  19. Fishing by Maskirovka · · Score: 3, Funny
    It's only a matter of time until someone gets caught on a fishing line.

    "Woa johnny! Look at the size of that thing- you must got yourself a big yellow whaleshark! Hang on there while I give the ole engine some juice to tire the bugger out."

  20. all techy, no tech by DiveX · · Score: 4, Informative

    these things have been around for a while, and I think they are a bad idea. I am a current SCUBA instructor as well as a pretty experienced cave and technical diver. There are so many limitations to this thing that makes it completely impractical. Transport is one issue in terms of getting it into and out of the water.

    for one thing, inexperienced pilot will have this hard bodied device with which to crash into delicate coral. this will have to be used in a body of water with typically little current, else it become quite easy to lose the group.

    It cannot go deep for long since it is still open to ambient pressure, so decompression comes into play as well as gas supply. For every 33 feet (10m) one descends, the pressure increases by one atmosphere. If that tank were to last the diver 60 minutes on the surface, then at 33 feet it would last only 30 minutes, at 60 feet it would be 20 minutes, and so forth.

    It might be ok for a few shallow water, shore-based resorts that can charge the units at the dock. Even a fairly cheap diver scooter will be just around 800-1200, and those can only go to about 100-150 feet if you're lucky. In order to go more deep, you have to get more specialized units (www.gavinscooters.com) that can handle the pressure (I've taken mine to 350) and has the battery burn time. Even those units only cost ~$3500. These units are simply torpedo looking devices that tow the diver. The biggest advantage is that it reduces the workload for the diver, thus dropping air consumption and helping one cover more ground.

    This device has no similarities other than someone trying to compare two unlike things with a vague attempt at seeming technologically advanced.

    --
    Cave, wreck, and deep diver.
  21. Well, it was a good idea... by batmanuel · · Score: 5, Funny

    and I'd have made a million from it if not for you meddling kids..I mean /.'ers finding all these flaws.

  22. A Diver's Perspective by kravlor · · Score: 2, Informative

    If the bad Photoshop work and the poor website wasn't enough to set your fraud alarms off, some basic physics can be used to show that this vehicle is completely unsafe if it were to really exist. Being a certified diver myself, perhaps a bit of information can make my point.

    Have you ever sank yourself down to the bottom of the deep end of the pool? Odds are you felt some discomfort in your sinuses. This is because of the increased pressure exerted on your body at depth. Remember the ideal gas law? PV = nRT? Rearrange that to show V is proportional to 1/P. Thus, for a fixed number of molecules of gas, increasing the pressure (due to the water column above you) will reduce the volume that gas occupies. That is, the air in your sinuses is occupying less volume, causing what divers refer to as a 'squeeze.'

    Note that the squeeze problem is precisely why you can't use regular swimming goggles when scuba diving; the volume contraction sucks on your eyes.

    The way divers fix the 'squeeze' problem is by equalization -- adding more gas molecules into the space that the squeeze is happening in. This is accomplished by either pinching the nose and blowing into it. However, the image of the scooter shows that the hands are sealed away from the head! Any passenger will quickly become uncomfortable when unable to equalize -- certainly before the 10m depth floor.

    I also have doubts about buoyancy control of the device.

    At least the nitrogen accumulation would not be sufficient at 10m to warrant decompression stops. It's too bad that this device isn't real... ;)

    1. Re:A Diver's Perspective by Anonymous Coward · · Score: 3, Informative

      Well I was just gonna mod you down but I decided to reply instead... Having personally used a similar device on a recent trip to the Florida Keys I can tell you that the device is real and I suffered none of the "squeeze" you are blathering about.

  23. top-10 list of bad ideas by jdkane · · Score: 4, Insightful
    Their motto should be "Throwing unknowledgable persons into a machine to scoot around a delicate underwater environment." Yes, real smart.

    I once took a diving course, as have others who are reading this. There are a number of things to learn regarding safety. This Scuba-Doo machine obviously tries to handle all that worry for you. However I don't believe an unknowledgable person should be sent underwater just for recreational purpose, even if a machine *may* handle the main safety features automatically. The person will be better off if they learn about their underwater environment (the fundamentals) before attempting to enter it in any way, and how to react properly in certain situations. Save the $14,000 and instead spend a few hundred bucks on a diving course which will provide you with much more enjoyment and hands down give you a safer experience (by way of knowledge).

    This machine is impractical (does not remotely resemble classic diving) because you can only use it in a very basic environment ... and even then it looks like a good reef-destroyer.

  24. Suba facts by goombah99 · · Score: 5, Informative
    First this is for real, have seen them advertised many places.

    Second when you dive to a depth of 30 to 60 feet or so you can only stay down safely a bit less than an hour or you risk getting the bends (nitrogen saturation of your blood coming out in gass form in your joints and nerves). So the time limit is just fine.

    Third you dont have to be certified to use this. fourth, its failsafe in many ways that scuba is not. The number one danger in scuba is forgetting to exhale when ascending (descending is not dangerous). If you forget to exhale on ascent from 60 feet then when you get to the surface you have a few atmospheres of air in your lungs and they literally explode inside of your body. Since ther is a bubble of air around your head there is no time when you would feel like holding your breath. This machine automatically passively equalizes the air pressure for you as you ascend (your nose is also exposed too).

    Likewise there is no way to suddenly find the tank is empty. when the tank goes empty you still have a head bubbles worth of air left

    One of the little known facts about scuba diving is that if you run out of air then if stay calm you always have enough air in your lungs to swim to the surface from any depth. The reason is that as you go deeper you also have more air in your lungs. You only have to remember to exhale on the way up to let off the excess air pressure.

    this thing is attached to a bouy so you cant sink it or goo to deep go into a cave. And you have a lifeline to the surface if you are disoriented. When you get to the surface you have floatation.

    A final danger in scuba is too rapid of an ascent. when you try to go up your boyancy device will run away from you: as it expands you rise faster leading to further expansion and pretty soon you are apolaris missile broaching the surface as your lungs go "pop". On the scooter it controls this for you.

    On the other hand the joy of scuba diving is the freedom of 3-D orientation. Drift in a current head down. try to use as little effort as possible (e.g dont swim up but instead just control your breathing to control your veritical position). look behind you look all around. This sort of sucks the life out of the sport.

    --
    Some drink at the fountain of knowledge. Others just gargle.
    1. Re:Suba facts by Pig+Hogger · · Score: 2, Insightful
      Third you dont have to be certified to use this. fourth, its failsafe in many ways that scuba is not. The number one danger in scuba is forgetting to exhale when ascending (descending is not dangerous). If you forget to exhale on ascent from 60 feet then when you get to the surface you have a few atmospheres of air in your lungs and they literally explode inside of your body. Since ther is a bubble of air around your head there is no time when you would feel like holding your breath. This machine automatically passively equalizes the air pressure for you as you ascend (your nose is also exposed too).
      What scares me the most in that thing is, if the rider rides something, the jolt may eject him into the blue, and without a mask, he'll be totally disoriented and try to make it to the surface, holding his breath, of course.

      With normal SCUBA, an instructor can always be near the student, but with that thing, it's easy to put oneself out of reach (and easy rescue).

      Definitely something I don't see any sane insurance company eager to underwrite, if used by untrained "divers"...

    2. Re:Suba facts by niew · · Score: 2, Insightful
      First this is for real, have seen them advertised many places

      Didn't they used to be advertised as SCUBA "BOB"? (Shakes head at silly name...)

      I don't meant to be picky (and not to pick on your post) but I see the following a lot in the dive industry:

      Third you dont have to be certified to use this. fourth, its failsafe in many ways that scuba is not. The number one danger in scuba is forgetting to exhale when ascending

      I think that the number one danger is diving beyond your training... We creatures weren't meant to go underwater for more than a couple minutes at a time, we need to bring life support equipment with us to acheive this and we need training to use that equipment, even for the SCUBADOO! (But I'll conceed that you don't need a full SCUBA course, but you should be comfortable and confident underwater.)

      On the other hand the joy of scuba diving is the freedom of 3-D orientation. Drift in a current head down. try to use as little effort as possible

      ABSOLUTELY! This is as close to weightlessness as most of us will achieve! Like flying without the few tonnes of airplane fuselage wrapped around you (and wetter, I guess...)

  25. Oh and one more thing by goombah99 · · Score: 4, Interesting
    I forgot the best safety feature of all. You can puke in it. This is not a joke. With suba if you need to puke then you have to stay calm and puke into your regulator. This takes unbelievable self control to pull off. The alternative, removing it from your mouth as you puke, leads to near certain death since the involuntary inhale after a gag reflex sucks pure seawater into your lungs leading to more gagging and no good way to expel it.

    And believe me in surging seas and murky conditions puking is something you find neccessary. Its not a fun thought.

    but with the bubble, no problemo. Nasty yes. but no though process required and no instant death if you screw up.

    --
    Some drink at the fountain of knowledge. Others just gargle.
    1. Re:Oh and one more thing by vivian · · Score: 2, Interesting

      Nice - you'd be up to your neck in puke, and you'd be able to smell it all. At least when in scuba gear you can change to your octy while the fish clean up the chunky bits.

      Actually, it would be a lot more hygenic for the rental market. That's why I ended up buying al lmy own gear - I found a piece of diced carrot in one rental regulator when doing the breathe test.
      Mmm!

    2. Re:Oh and one more thing by trewornan · · Score: 5, Informative
      With suba if you need to puke then you have to stay calm and puke into your regulator. This takes unbelievable self control to pull off.

      You're joking right ? Puking through a regulator is no harder than puking any other way, and I know from personal experience.

      As an added benefit you would be amazed at how all the beautiful fish swarm round you afterwards.

    3. Re:Oh and one more thing by Tri · · Score: 3, Informative

      Alternatively, put the top of the mouth piece against your upper lip, make sure the mouth piece is pointing down, press the purge button, and puke to your heart's contents. You won't get puke into your reg, and you won't have problems when you have that sudden need to inhale after you puke. As a bonus, you still get to see to fish, and your reg stays clean. Or just use your alternate... ;-)

  26. Um, not like the movies by SuperBanana · · Score: 3, Informative
    I think I would like the air to last longer than the battery, you know, just in case something catastrophic happens.

    It's not a problem because, like pilots, you never plan on using all your air/fuel. You always have a reserve- most divers, for example, start surfacing(depending upon how deep they are) when they hit anywhere from 1500 to 500 psi(used to be 500 psi, everyone's encouraging a much larger margin). The divemaster would take this into account when timing a dive, for example.

    It's also not a problem, because as you use up the air, the tank becomes lighter and the whole thing(including you) becomes more buoyant, not less. The weight difference between a tank at 3000+ PSI and 500 PSI is quite significant in terms of buoyancy control, and is why you need to be slightly negative when you first get in the water if you're diving. If you're not, you're going to run a rather serious risk of uncontrolled ascent towards the end of your dive. It's one of the many situations that can lead to decompression sickness.

    It would not surprise me in the slightest if the unit was designed to be slightly positively buoyant at all times, so that if it stops moving forward, it slowly floats to the surface. That could be used in conjunction with a low-pressure switch to shut off the unit if the air pressure gets too low.

    Oh, and even if the thing did start sinking, guess what? You get out, blow bubbles and kick to the surface; it's not like you're in a sub that's gonna implode. By the way, blowing bubbles or exhaling is very important- if you don't, you're going to have a punctured lung. At the depths this thing is designed for, decompression sickness most likely won't be a problem.

    The only real problems I see are a)serious potential for reef damage(it's bad enough with divers whacking things with their flippers, this thing crashing into a reef would be devastating) and b)improper training(SCUBA is very safe, but only when you know what you're doing. When you don't know what you're doing, it becomes very dangerous, which is why you can't rent equipment(or even buy it, from some shops, unless they know you're a student) without proof of certification or enrollment in a class.

  27. These vehicles will ultimately HURT the reefs by poopie · · Score: 4, Informative
    Coral reefs and most underwater ecosystems where this contraption could be used are *very* fragile and endangered.

    Have you even seen the damage done by a cruise ship dragging anchor across the ocean floor?

    Have you even seen a 3000+ year old reef destroyed by some offcourse barge?

    Do you know that most of the reefs at popular dive destinations are DYING?

    The last thing we need are a bunch of inexperienced divers crashing these underwater vehicles into table corals, soft corals, and otherwise speeding up the demise of our fragile coral reefs.

    Think I'm exaggeratting?

    Freighter damager 1200ftX200ft swath of Florida reef

    60% of great barrier reef hit by bleaching

    Great barrier reef 50 years from death

    Sewage killing Tobaggo's reef

    Bottom trawling fishing destroys large portions of deep water coral reefs never explored

  28. What a monster by bigberk · · Score: 2, Insightful

    Anyone else get the feeling, all the snorkelers and scuba folk will be swimming along, enjoying the reefs when a fleet of these bloody "SUVs of the sea" show up and start pummeling the reefs and freestyle divers?

  29. not new- tiki bob by Jafa · · Score: 2, Informative

    These look exactly like Tiki BOBs. I'm guessing it's the same company and everything, they're just hopping on the segway bandwagon. Didn't look around a lot, but here's a link or two:
    http://www.cdnn.info/industry/i031220/i031220.html
    http://www.aquatica-dive.com/actibob_us.htm

    It sounds like this scubadoo is limited, like the tiki bob, to only a few meters of depth.

    J

  30. Scuba-Doo / BOB by nspitze · · Score: 3, Informative

    I worked (as a certified scuba instructor) for an operation that ran these same underwater scooters for hire. The scooters that we ran were tethered to a maximum depth of 8 feet.
    A lot of people right off the cruise ship that had never seen the ocean had a great time doing it. As a scuba diver, I got in and wanted to get out.
    It's great if you've never been salt water wet, otherwise, snorkeling or scuba beats it anytime.

  31. I knew I would think of something to say... by hawado · · Score: 2, Funny

    Unfortunately it took my girlfriend giving me this in order for me to fulfil my thought...
    "a comparative test drive between an under-water propeller driven, blue and yellow one-person SubBug, and a giant manta ray." - Douglas Adams, Salmon of Doubt, "Riding The Rays." Douglas gets a free trip to Australia to write about it. Conclusion - "Your manta ray is going to be a lot faster and more manoevrable, and you don't need to change its tank every twenty minutes. But the big points that the Sub Bug wins are for the fact that you can actually get on it."

    --
    Feed my eyes...
  32. Who else read "Scooby Do Underwear"? by Pvt_Waldo · · Score: 2, Funny

    When I first saw the headline I thought, "WTF Scooby Do Underwear? Segway?" I had this vision of people riding around wearing it on their Segways...

  33. Picture of the thing in action. by Pig+Hogger · · Score: 2, Informative

    http://www.gizmo.com.au/pics/1967_03.jpg

  34. Well, that's a trademark lawsuit waiting to happen by Phat_Tony · · Score: 2, Interesting


    They may claim they had Scooby-Doo in mind when naming this, but unless they are actually a division of Bombardier (which it doesn't appear they are), they might expect a lawsuit from them, do to the similarity to products like these and these

    --
    Can anyone tell me how to set my sig on Slashdot?
  35. Why not a REAL underwater scooter? by kooma · · Score: 2, Interesting
    When moving into the underwater realm, do it with style! "Real" underwater scooters have more power than necessary for beginner divers, and they're loads of fun. Originally used by cave divers and technical divers on deep wrecks, they are creeping into the use of recreational divers. Check out the pictures of SS and Gavin.

    There's nothing like strapping yourself to an electrical torpedo from the crotch...

  36. Mod parent down! by mrklin · · Score: 2, Informative
    Geez, are you the Steve Jobs of diving?

    As a certified (PADI Advanced) diver, I will say your post is filled with distorted facts, if not downright factual errors. I pray for your safety when you dive and hope you are not my dive buddy!

    For example:

    ---when you dive to a depth of 30 to 60 feet or so you can only stay down safely a bit less than an hour or you risk getting the bend

    Incorrect.

    Bends, more correctly known as decompression sickness, is caused by rapid decompression i.e. ascending too quickly. It is not caused by how long you were underwater as you had claimed.

    Bends can be induced even if you are under water, say 60 ft, for one single minute and then shot up too quickly. This is why the recommend ascent rate is less than 1 ft per minute followed by one or more safety stops at 15 ft.

    ---its failsafe in many ways that scuba is not.

    I would disagree with you again. Scuba is actually one of the safest sports out there because 1) it requires its users to be trained and certified and 2) and because of the redundancy built-in.

    Every diver has a primary regulator (the thing you suck air from) and a secondary regulator just in case if the primary fails. Even if both fails, many diver carries a pony bottle that gives one just enough air to reach surface. In the case if that fails or if you do not have a pony bottle, you can always use your dive buddy's secondary regulator. What if your buddy's secondary reg also fails? You can either share the primary regulator with your buddy or, as you mentioned, ascent without air while breathing out the remaining air in your lung.

    So, is a scuba diver, who is by definition certified, safer than ScubaDoo user? I think so.

    ---Likewise there is no way to suddenly find the tank is empty. when the tank goes empty you still have a head bubbles worth of air left

    Not true either. Even if you are tank is empty and you had to ascend rapidly (forgetting for a second that you should be diving with a buddy), it is recommended to keep your regulator in your mouth because the remaining little air in your tank will expand as well and give you one last breath. In a sense, this is not too different from the Scubadoo's head of air bubble.

    Lastly, while a pulmonary barotrauma (burst lung) is possible, it is extremely rare.

    Stop scaring the Slashdot non-divers!

    1. Re:Mod parent down! by Tri · · Score: 2, Informative
      Bends, more correctly known as decompression sickness, is caused by rapid decompression i.e. ascending too quickly. It is not caused by how long you were underwater as you had claimed.


      Decompression sickness is caused when the pressure difference between nitrogen disolved in your body, and the ambient pressure of nitrogen is too high, causing bubbles to form. Hence both how long you stay underwater, and how fast you go up have an effect. Depth will of course also have a huge effect.


      Bends can be induced even if you are under water, say 60 ft, for one single minute and then shot up too quickly. This is why the recommend ascent rate is less than 1 ft per minute followed by one or more safety stops at 15 ft.


      If you shoot up, you're probably more at risk of an air embolism, but yes decompression sickness is still at risk. On the other hand, going up too slowly can also be a problem, as some of your tissue groups will still be absorbing nitrogen while you are going up. This will be a problem with your "slow" tissue groups, ie those that absorb nitrogen slowly, and haven't yet reached saturation when you start ascending.


      Even if you are tank is empty and you had to ascend rapidly (forgetting for a second that you should be diving with a buddy), it is recommended to keep your regulator in your mouth because the remaining little air in your tank will expand as well and give you one last breath. In a sense, this is not too different from the Scubadoo's head of air bubble.


      Aaargh! Why do people say that? The air in your tank won't expand. The only reason you'll get a few more breaths of air, is because the ambient pressure will drop below that of the tank allowing you to actually breathe it. This will only work if you've actually used up all your air, as chances are that if you've had a catastrophic failure of your SCUBA, the air that's left will have completly escaped. The only bits of air that will expand will be those that are at ambient pressure, ie, the stuff that's inside you.


      Lastly, while a pulmonary barotrauma (burst lung) is possible, it is extremely rare.


      That's correct! What's more likely to happen is that your lungs will sort of hold (well at least they won't burst), but air will be pushed out of them into your blood vessels. This is a good way to get a bubble of air into your brain which is a good way to kill yourself.


      After all that, I still agree with your statement that scuba is much safer than a ScubaDoo user... ;-)