Slashdot Mirror


Salad Spinner Made Into Life-Saving Centrifuge

lucidkoan writes "Two Rice University students have transformed a simple salad spinner into an electricity-free centrifuge that can be used to diagnose diseases on the cheap. Created by Lauren Theis and Lila Kerr, the ingenious DIY centrifuge is cobbled together using a salad spinner, some plastic lids, combs, yogurt containers, and a hot glue gun. The simple and easily-replicated design could be an invaluable tool for clinics in the developing world, enabling them to separate blood to detect diseases like anemia without electricity."

87 comments

  1. Iran circumvents IAEA.. Walmart stock up 5% by Orga · · Score: 2, Funny

    Irans elite military units placed orders for large quantities of salad spinners from walmart.com early Tuesday. UN officials release statement citing possible miscalculation of sanction effectiveness.

    1. Re:Iran circumvents IAEA.. Walmart stock up 5% by toastar · · Score: 1

      Irans elite military units placed orders for large quantities of salad spinners from walmart.com early Tuesday. UN officials release statement citing possible miscalculation of sanction effectiveness.

      aren't those centrifuges a bit more powerful?

    2. Re:Iran circumvents IAEA.. Walmart stock up 5% by The+Archon+V2.0 · · Score: 4, Funny

      aren't those centrifuges a bit more powerful?

      That's the Iranians' dark secret: They are developing new salad technology. They don't want to nuke the Jews, they just really love Caesar salad and don't want the other Muslim extremists to laugh at them.

    3. Re:Iran circumvents IAEA.. Walmart stock up 5% by Megahard · · Score: 1

      Just don't let them get the Salad Shooter!

      --
      I eat only the real part of complex carbohydrates.
    4. Re:Iran circumvents IAEA.. Walmart stock up 5% by StikyPad · · Score: 1

      That's the Iranians' dark secret: They are developing new salad technology.

      Salad shooters?

    5. Re:Iran circumvents IAEA.. Walmart stock up 5% by natehoy · · Score: 1

      Veggie Tales.

      --
      "This post contains words, known to the State of California to cause thought. Wash brain thoroughly after reading."
    6. Re:Iran circumvents IAEA.. Walmart stock up 5% by PDX · · Score: 1

      Don't mention the Potato guns!

    7. Re:Iran circumvents IAEA.. Walmart stock up 5% by Moryath · · Score: 1

      It'll go so well with the Ayatollah's thing for lipstick, pink underwear, Elton John music, and young boys. ...what, you didn't think the Catholics had a monopoly on guys like that in their higher religious authorities, did you?

    8. Re:Iran circumvents IAEA.. Walmart stock up 5% by Gilmoure · · Score: 1

      As long as just the US has pumpkin chucking technology, we're safe.

      --
      I drank what? -- Socrates
    9. Re:Iran circumvents IAEA.. Walmart stock up 5% by Taco+Cowboy · · Score: 1

      That's the Iranians' dark secret: They are developing new salad technology. They don't want to nuke the Jews, they just really love Caesar salad

      If that's the case, they are waaaaaaay cuter than the Pakis, who tried to car-bomb Time Square.

      --
      Muchas Gracias, Señor Edward Snowden !
    10. Re:Iran circumvents IAEA.. Walmart stock up 5% by Meski · · Score: 1

      Anchovies are Halal?

  2. Why is this in idle? by bbqsrc · · Score: 1

    This seems like something actually interesting to read! Can we swap kdawson for samzenpus please.

    --
    Disagree != mod troll.
    1. Re:Why is this in idle? by drinkypoo · · Score: 3, Funny

      Can we swap kdawson for samzenpus please.

      Seems like somebody forgot to unmount the scratch monkey.

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    2. Re:Why is this in idle? by Hurricane78 · · Score: 1

      LOL, This was even funnier with my little Firefox extension doing a s/kdawson/kmonkey/ ;)

      --
      Any sufficiently advanced intelligence is indistinguishable from stupidity.
  3. Nice work, but... by Angst+Badger · · Score: 4, Insightful

    This is clever thinking on the part of the students, but hand-cranked centrifuges have been around for a long time. They're not terribly expensive, they're sturdy as hell, and they're durable and easy to sterilize -- which almost certainly cannot be said of something made of disposable plastics and hot glue.

    Besides, if you're in a part of the developing world where you have surplus salad shooters and the electricity to power your hot glue gun -- which is, come to think of it, a good description of the eighth grade science classroom where I first encountered a manual centrifuge -- you can probably afford the manual centrifuge.

    --
    Proud member of the Weirdo-American community.
    1. Re:Nice work, but... by ciaohound · · Score: 4, Funny

      not terribly expensive, they're sturdy as hell, and they're durable and easy to sterilize

      Say, that would make a great salad spinner!

      --
      Oh, yeah, it's not easy to pad these out to 120 characters.
    2. Re:Nice work, but... by dkuntz · · Score: 2, Insightful

      Chances are, imo, at least, is that they'd be manufactured somewhere where there was electricity, as well as surplus salad shooters. And while manual centrifuges may be inexpensive, can you really get more inexpensive that bulk buying plastic salad shooters and refills for hot glue guns? This, to me, sounds like something that could be sold in developing nations for $5-10 per unit, if not less. And being all manually powered, I dont see why soaking it in bleach, or boiling water wouldnt help sterilize it (not perfectly...and an autoclave would need electricity..and probably damage/melt it...). And with the production costs and sales costs so low, the cost of replacing it if it's too worn down, or contaminated, would not be that expensive. Especially the units were donated by some large charity or some overly right person who will never spend their billions of dollars before their great great great grandchildren are dead...

      --
      OMG... I have a sig?
    3. Re:Nice work, but... by Coder4Life · · Score: 1

      You're missing the point

      After screening for deadly pathogens in someone's blood, you can make them a salad. Who doesn't love a good salad?

      --
      Once upon a time in a mythical land called Soviet Russia, a hot bowl of grits had Natalie Portman.
    4. Re:Nice work, but... by netsavior · · Score: 1

      Thanks!

      $48.50 and you are right, that thing looks sturdy as hell... Awesome, now I am going to stop watching the university surplus website for a centrifuge, we homeschool my kids and I have really been wanting one!
      and yeah a salad spinner version would break instantly.

    5. Re:Nice work, but... by raddan · · Score: 2, Informative

      No kidding. What's next? Ox-powered cars? Have we forgotten that centrifuges predate electric motors?

    6. Re:Nice work, but... by maxume · · Score: 1

      Make sure you have a librarian teach them how to search for information.

      --
      Nerd rage is the funniest rage.
    7. Re:Nice work, but... by Reziac · · Score: 4, Interesting

      And there's an even simpler non-electrical centrifuge: a human spinning a bucket.

      My veterinarian in Montana, being a livestock vet who had little use for expensive or breakable gadgets, simply packed the blood tube in towels in a bucket, tied a rope to the bucket handle, and sent whoever was handy out to the parking lot to whirl it around their head a few dozen times. Worked fine.

      --
      ~REZ~ #43301. Who'd fake being me anyway?
    8. Re:Nice work, but... by Firethorn · · Score: 1

      Manual Centrifuge, retail pricing: $73. Four tubes, clamps to a table.

      Salad Spinner: $32
      Combs, Glue, miscellaneous: $5
      Labor: $20/hour
      Call it $50.

      Personally, I think that the metal centrifuge will likely last decades while the spinner would be lucky to last 2 years. I'm not sure of the spinner's ability to stand up to sanitizing bleach solutions, and you can't autoclave it. Add in the ability to spin 4 tubes over 1, the centrifuge provides more capacity, longer life, higher spin speeds (950 vs 3k RPM), a proper handle, and easier sanitization over the improvised device.

      It's a neat project for the students, not something that's going to revolutionalize the developing world.

      --
      I don't read AC A human right
    9. Re:Nice work, but... by patman600 · · Score: 2, Informative

      Not to nitpick, but I just can't help myself. This device can actually spin 30 tubes, not 1. So, 7.5x more than a manual centrifuge. I'll give you the other points, but I am genuinely curious as to how important sanitation is in this context. The stated use case is checking for anemia in undeveloped countries, how necessary is sanitizing the centrifuge for that?

    10. Re:Nice work, but... by the_hellspawn · · Score: 0

      Manual centrifuge hold 4 and costs $73.31. I was curious :) http://www.bestlabdeals.com/HAND_CENTRIFUGE_p/usmp137.htm

      --
      "The laws of science be a harsh mistress." --Bender
    11. Re:Nice work, but... by Firethorn · · Score: 1

      Huh, you're right. I missed that line in the article. That does change it's utility quite a bit, depending.

      It takes twice as long as the 10k RPM battery model, but does 7 times as much. The metal manual centrifuges I found do 4 as well, but with a 3k RPM it's probably right in between for how long it takes.

      Still, I imagine that a professionally produced version could be not that much more expensive and far more durable.

      Maybe get a sightly faster spin while you're at it.

      --
      I don't read AC A human right
    12. Re:Nice work, but... by Khyber · · Score: 2, Interesting

      "They're not terribly expensive, they're sturdy as hell, and they're durable and easy to sterilize -- which almost certainly cannot be said of something made of disposable plastics and hot glue."

      I see someone has never DIY a full hydroponics system before using almost those exact materials - disposable plastics (cat litter buckets) and hot glue (to hold the net pots to the modified lid.)

      It's fucking TRIVIAL to clean and sterilize.

      --
      Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
    13. Re:Nice work, but... by blair1q · · Score: 1

      String $1

      Tie a bunch of test-tubes onto a piece of string and whirl it around.

      Same effect, same energy input, and for 1/75th the cost you get enough to last you several years.

    14. Re:Nice work, but... by blair1q · · Score: 1

      >a professionally produced version could be not that much more expensive and far more durable

      Looked at the prices of newly-developed medical equipment lately?

      The key to healthcare reform was to cap profits for suppliers to the healthcare industry. None of the dance around insurers was necessary, and none of it did anything to stop the real cost driver.

    15. Re:Nice work, but... by Anonymous Coward · · Score: 0

      String $1

      Tie a bunch of test-tubes onto a piece of string and whirl it around.

      Same effect, same energy input, and for 1/75th the cost you get enough to last you several years.

      Spinning tubes on a string might seem like a good idea, right up until someone gets a vial of aids blood in the face when your string breaks/knot gets untied/they walk too close. Good times, good times.

    16. Re:Nice work, but... by Firethorn · · Score: 1

      Looked at the prices of newly-developed medical equipment lately?

      To get technical, this is lab equipment, not medical. You're spinning blood, not installing a shunt.

      Looking at the various devices in question, you could probably convert the 4 tube centrifuge to a larger one simply by putting a different 'top' on the unit. Perhaps increase the size of the crank/shaft a bit. Heck, it might start slower, but with a uniform disc and good bearings, the larger unit wouldn't be significantly harder to turn either. Might even be easier, what with having lower air resistance at ~3k RPM. No real need to get fancy with magnetic bearings or clutches

      They already have them, it's just that the 30+ tube centrifuges are all electric from my quick search - I'm sure China would be quite happy to produce a number of manual ones if somebody was willing to order a thousand or so.

      The key to healthcare reform was to cap profits for suppliers to the healthcare industry. None of the dance around insurers was necessary, and none of it did anything to stop the real cost driver.

      'Cap profits' is about the worst thing you can do, by my thinking. The problem isn't just excessive profits*, it's inefficiency. What they really need to do is encourage more competition. Remove, or at least streamline/lessen obstacles to entering the market. Capped profits merely means MORE companies leaving the field, reducing competetion, reducing incentive to economize. Besides, profits can be hidden, transfered, and tweaked by a good accountant team.

      *A healthy profit is a *GOOD* thing.

      --
      I don't read AC A human right
    17. Re:Nice work, but... by Firethorn · · Score: 1

      Puts too much strain on the tubes; you want some more positive control. the metal arms help keep the tube aligned and supported.

      Though that would make for an interesting test - about a meter or two of cord, and a dude spinning it around his head. Lower RPM is compensated for by larger radius.

      --
      I don't read AC A human right
    18. Re:Nice work, but... by Anonymous Coward · · Score: 0

      >Manual Centrifuge, retail pricing: $73. Four tubes, clamps to a table.
      >
      >Salad Spinner: $32
      >Combs, Glue, miscellaneous: $5
      >Labor: $20/hour
      >Call it $50.

      Helping Poor People: Priceless

    19. Re:Nice work, but... by RockDoctor · · Score: 1

      Besides, if you're in a part of the developing world where you have surplus salad shooters

      Begs the question of WTF is a salad spinner (or as some people are describing it, a salad "shooter")?

      --
      Birds are not dinosaur descendants;birds are dinosaurs, for all useful meanings of "birds", "are" and "dinosaurs"
  4. Why only third world? by PolyDwarf · · Score: 3, Interesting

    Something I never understood about the "This could be great for the third world" items..

    Why wouldn't it be great for the first and second worlds too?

    I would assume scale and speed aren't up to par with more focused medical devices... But, for the price of one of those, you can buy a bunch of 35 dollar ones.

    1. Re:Why only third world? by scorp1us · · Score: 2, Insightful

      Because of lawsuits, QA, FDA auditing and controls. We are a litigious society who will sue when we get test results messed up. Also, key to predictable results is uniformity.

      It is a sad but true thing that 3rd-world lives are not held in as high regard as 1st world lives. Look at Predator drone strikes: over 300 innocents killed. Do this in a 1st or 2nd world country and there would be more far more outage.

      --
      Slashdot's rate-of-post filter: Preventing you from posting too many great ideas at once.
    2. Re:Why only third world? by Anonymous Coward · · Score: 0

      Why wouldn't it be great for the first and second worlds too?

      Well, that's implied, obviously. Nearly everything designed and marketed is designed and marketed for first-worlders.

      What I find confusing is why people think that third-worlders, stereotyped in media as living in squalor with no hope for prosperity, need finished products and not the tools needed to make their own.

    3. Re:Why only third world? by snooo53 · · Score: 1

      Agreed! Like the cheap drinking water straw thing... good for backpacking. The pixelqi screens for the OLPC... why are we still waiting on first world versions of these? I mean maybe in this case it's not worth it to have someone sitting there spinning samples all day, but I definitely see the potential market for these types of items

      --
      The sending of this message pretty much inconveniences everyone involved.
    4. Re:Why only third world? by c6gunner · · Score: 1

      It is a sad but true thing that 3rd-world lives are not held in as high regard as 1st world lives. Look at Predator drone strikes: over 300 innocents killed. Do this in a 1st or 2nd world country and there would be more far more outage.

      Garbage. Hundreds of thousands of innocents were killed in bombings of first-world nations during the second world war, with far less outrage. You have no idea what you're talking about.

    5. Re:Why only third world? by thepike · · Score: 1

      It would be even better to link the two. Like you buy a first world salad spinner centrifuge and it pays for a third world person to get one too. Like they did when OLPC first came out

    6. Re:Why only third world? by doconnor · · Score: 1

      In the first and second worlds, electricity is cheap and reliable and labour required to spin a manual centrifuge is expensive. In the third world, the opposite is true.

    7. Re:Why only third world? by Bing+Tsher+E · · Score: 1

      What nonsense. We just have more lawyers here in the First World. It isn't a good thing, either.

      The FDA acts as a protective agent. The barrier to entry for new medical device startups is staggering, and the existing large Medical Device Manufacturers have a warm cordial relationship with the FDA for that reason. They're quite satisfied to charge the FDA mandated markups.

    8. Re:Why only third world? by Bing+Tsher+E · · Score: 1

      The laugh, though, is that the 'reliable' electricity for this thing is apparently only needed for the hot glue gun. So, uh... I guess do the one-time glue part of assembly on a good day?

    9. Re:Why only third world? by The+Angry+Mick · · Score: 1

      Why wouldn't it be great for the first and second worlds too?... But, for the price of one of those, you can buy a bunch of 35 dollar ones.

      Which is the reason why you haven't seen this in the first world. No acceptable profit margin.

      I'm surprised the article didn't come with a statement from big Pharma warning that use of such devices in the first world may constitute an unnecessary risk to the "health and well being" of the nation. And we all know that manufacturing cheap, or even affordable medical stuff is a blatant attempt at socialism.

      --

      I'm not tense. I'm just terribly, terribly, alert.

    10. Re:Why only third world? by Anonymous Coward · · Score: 0

      Why? Because of the first world's kneejerk paternalism, that's why.

      I've been to rural India, and I've seen...wait for it...centrifuges made from salad spinners. Years ago.

      You want to know how to create a zero-electricity easily portable centrifuge? Ask someone from the third world. They're actually very clever and have probably already come up with it. Because, you know, necessity and the mother of invention and all that.

    11. Re:Why only third world? by scorp1us · · Score: 1

      Well, lawyers and courts are key. But they are still effectively valued less. And effectiveness is all that matters, in these matters.

      But hey, don't blame the messenger. I find it atrocious too.

      --
      Slashdot's rate-of-post filter: Preventing you from posting too many great ideas at once.
    12. Re:Why only third world? by Anonymous Coward · · Score: 0

      exactly the reasoning I use when buying power tools. I buy *THE* cheapest one I can. More than likely this will be the only project I use it on. If I use it again. I still have the cheap one. If it is broke (or breaks) I am not out much.

    13. Re:Why only third world? by Anonymous Coward · · Score: 0

      For the same reason companies use a computer and excel instead of a calculator and paper: cost of automation vs cost of time. That and the RSI workers comp claims you'd get if you hired people to pump a salad spinner all day...
      Also vendors give away picofuges (miniature centrifuges that hold 6 samples and get up to 2000xg) as freebies...
      The big crossover from "this could be great for the third world" technologies are lab on a chip/piece of paper/CD-ROM type diagnostics: things that save money when labor (and other aspects of time) are expensive.

    14. Re:Why only third world? by Eivind · · Score: 1

      It could be, offcourse. But cost of equipment is strongly related to wages.

      If a man with a shovel, is $5/day, equipping him with a excavator that costs $100/day in maintenance and deprecation isn't worth it, even if it lets him get ten times the amount of work done.

      If a man with a shovel cost $100/day, equipping him with an excavator that doubles his cost, but makes him ten times as efficient, becomes a nobrainer.

      This is why the $50 shovel that is 20% better is going to be a good alternative where wages are low, whereas where the people are -already- using excavators, it'll be less interesting.

  5. You know Vegetarians will have their Day. by davonshire · · Score: 1

    This is really a great idea, bravo to the students. Though they use
    to make hand crank centrifuges I'm pretty certain. This wouldn't
    require being clamped to the lab bench or screwed down.

    On the other hoof, were it not for salads and Vegetarians we
    wouldn't have such a cool something to hack.

    (subnote: could be other reasons a salad spinner was created.)

    Davonshire.

    1. Re:You know Vegetarians will have their Day. by iamhassi · · Score: 1

      This isn't a really good idea. Like others have said this has been done already and real manual centrifuges already exist for a few dollars more. Only person this would interest is McGyver because he could clobber one together in 17.6 seconds, but if they're thinking of making these and shipping them then just send them the real centrifuges in the first place.

      --
      my karma will be here long after I'm gone
  6. Err... by brian0918 · · Score: 1

    It looks like this has already been done, and better.

  7. The Salad-Spinner IS a centrifuge by Actually,+I+do+RTFA · · Score: 1

    There are interesting parts of this story, essentially the rest of the apparatus is hot melt glue, yogurt lids, etc. And it's interesting to make a medical device out of what most people would consider trash. But a Salad Spinner is a centrifuge, so I don't see why we'd focus on that.

    --
    Your ad here. Ask me how!
  8. ummm... by Anonymous Coward · · Score: 0

    couldn't you tie a test-tube to a string and swing it around? SUPPER CHEAP!

  9. Re:Nice work, but...No but, smart thinking. by irreverant · · Score: 4, Insightful

    What I took from the article was not that they re-invented the wheel, but where able to use analytical thinking and problem solving skills TO re-invent the wheel. They were able to think outside the box and develop a centrifuge (that works) from parts that you can find around a house. I think these students are creative - partner that with their education and it's amazing to think what they will be possible of doing or making in the future. Our future lie's in the hands of our youth - i feel good about our future with students like this.

    --
    Of all the things I've lost; I miss my mind the most. - Mark Twain
  10. This has been done cheaper, clearner and easyer by Qbertino · · Score: 3, Interesting
    --
    We suffer more in our imagination than in reality. - Seneca
  11. Next iron man plot?... by Brad1138 · · Score: 1

    Tony Stark is trapped in his kitchen, and has a terrible disease, he needs a centrifuge but only has basic kitchen utensils, Will he survive?

    --
    If you could reason with religious people, there would be no religious people
    1. Re:Next iron man plot?... by cyp43r · · Score: 1

      Yes, he replaces his blood with a glowing liquid that also generates power and gives him a second superfluous jetpack.

  12. Umm...no... by denzacar · · Score: 1

    You know how when you use your hot-glue gun you leave the stick inside as well as the melted glue and next time you turn it on it melts?

    Same would happen if you would try to autoclave/soak in boiling water something glued with hot glue.

    The best part is that it probably would not fall right off - the bond would get weaker and weaker until on third or fourth use ampules of blood start flying across the room.

    --
    Mit der Dummheit kämpfen Götter selbst vergebens
    1. Re:Umm...no... by ArsonSmith · · Score: 1

      Sooooo, you're saying it could also double as a special effects generating item allowing Hollywood to outsource these things to the third world as well.

      --
      Paying taxes to buy civilization is like paying a hooker to buy love.
  13. Re:Nice work, but...No but, smart thinking. by D+Ninja · · Score: 1

    They were able to think outside the box

    I think you mean, "They were able to think outside the salad spinner."

  14. Let me get this straight by Anonymous Coward · · Score: 0

    You extract a bunch of blood from a stranger in the 3rd world and swish it around in this salad thingy for 15 minutes ... so you can see if they might be HIV positive?
    Where do I sign up?

  15. They are missing a few things! by www.sorehands.com · · Score: 1, Interesting

    What about duct tape and paper clips?

    MacGyver would not approve without those items included.

    It is a shame, a entire generation that would not recognize MacGyver if they met Richard Dean Anderson.

    1. Re:They are missing a few things! by Bardez · · Score: 1

      I'm not sure that's a bad thing. I loved the show as a kid, but watching the DVDs I bought of it... it really was a terrible show.

      --
      Perception is the thin dividing line between reality and fiction.
    2. Re:They are missing a few things! by maxume · · Score: 1

      MACGRUBER!

      --
      Nerd rage is the funniest rage.
  16. Also... by denzacar · · Score: 1

    Salad spinner being somewhat a "technology" that only "1st or 2nd worlder" will use I find it rather hard to comment on the fact that two girls have come up with a way to use a salad shooter as a centrifuge without coming off all chauvinistic.
    You know... women... diet... salad...

    Cause, there is a MUCH MORE readily available manually powered centrifuge that doesn't even need the hot glue gun to make it work.
    Just some duct tape, as they are using very light and rather small capillary tubes. With proper use of pliers - not even duct tape.

    A bicycle.

    --
    Mit der Dummheit kämpfen Götter selbst vergebens
    1. Re:Also... by Mindcontrolled · · Score: 1

      A bicycle would be perfect - you get gears, bearings, metal tubes. All you need to build a sturdy, autoclavable hand centrifuge with probably a lot more power than the salad thingmajig. Screw and tape it together if you can't weld, and off you go.

      --
      Ubi solitudinem faciunt, pacem appellant.
  17. correct usage, for once by ChipMonk · · Score: 1

    It's a sales term. While it's in the box, it's a salad spinner, but once the box is opened and the product removed, who knows what the end user will do with it? That's "thinking outside the box."

    1. Re:correct usage, for once by g0bshiTe · · Score: 1

      Would you consider using this salad spinner as a manual centrifuge to be fair use though?

      --
      I am Bennett Haselton! I am Bennett Haselton!
  18. Third world by Vahokif · · Score: 1

    Can you seriously imagine someone in the third world having a salad spinner?

    1. Re:Third world by Anonymous Coward · · Score: 0

      Yes, if you or I give them one.

  19. Cool by Masterofpsi · · Score: 1

    I went to high school with Lauren and I go to Rice too, but I never knew this was going on. I guess keeping to the CS and English depts would do that. Still, cool stuff.

  20. Obvious. Why is this news? by gweihir · · Score: 2, Insightful

    A centrifuge used as a centrifuge. What is newswothy here? The developing world does not need this incredible level of arrogance implied here either. Of course they know how to centrifuge things without electricity. They may not have technology, but intelligence is evenly distributed (or maybe even better there, given this drastic example that at least in some places of the western world, it is rather low.)

    --
    Most ACs are not even worth the keystrokes to insult them. Be generically insulted by this and ignored otherwise.
    1. Re:Obvious. Why is this news? by Whatsisname · · Score: 1

      Intelligence may be evenly distributed, but education is not. Education is more important because it allows one to learn from people before them.

    2. Re:Obvious. Why is this news? by gweihir · · Score: 1

      If you know that you want to centrifuge something, the step to find out how to do it is easy. This device is meaningless.

      You are right, of course, that without the knowledge about centrifuging, you cannto use it. But that is indeed an education problem, not a problem for a "device".

      --
      Most ACs are not even worth the keystrokes to insult them. Be generically insulted by this and ignored otherwise.
  21. Day of the Tentacle by davrob60 · · Score: 1

    Is it powered by the "super battery" designed by Fred Edison?

  22. Re:I'd rather just by Anonymous Coward · · Score: 0

    If Rice University in China or Japan?

  23. Not quite... by denzacar · · Score: 1

    An egg-beater would be much more suitable for such a purpose.

    Which is incidentally another kitchen utensil that could also be used as a manual centrifuge.
    Though, some steps would have to be taken first so the samples for blood analysis don't end up in the same location as the coloring used for special effects.
    Namely, all around the room.

    --
    Mit der Dummheit kämpfen Götter selbst vergebens
  24. Obviously... by Putr · · Score: 1

    This mite be usefull in the developing world... The problem I see is... where would you find a salad spinner in the developing world, on second thought why would anyone in the developing world even need a salad spinner, wait, why would ANYONE need a salad spinner? Since there are probably a lot of people like me that have no idea what a salad spinner is, here's a link i found http://www.wisegeek.com/what-is-a-salad-spinner.htm

  25. Re:Iran circumvents IKEA.. Walmart stock up 5% by countertrolling · · Score: 1

    Don't know what to say...

    --
    For justice, we must go to Don Corleone
  26. Re:I'd rather just by Meski · · Score: 1

    What was the name of the second student? The one that wasn't McGyver?

  27. I see potential... by ekran · · Score: 1

    can it also be used to centrifuge Uranium?

    1. Re:I see potential... by f3rret · · Score: 1

      I'm sure it could. Whether or not it'd actually do anything but whirl the uranium around really, really fast is the real question.

      --
      Admit nothing. Deny Everything. Make Counter-accusations.
  28. And the salad spinner scores a point by hallux.sinister · · Score: 1

    Trouble with using a bike for this is that the tubes are filled with BLOOD, which could be infected, (which may be why, after all, you're spinning it, to diagnose,) and if you put it in a bike, and spin it, and get careless, BAM! BLOOD SPRAYING EVERYWHERE if one of the tubes breaks. Much less likely to break inside a salad spinner, and even if it does, it's at least mostly contained. Kind of embarrassed it took a couple Rice students to think this up, and not someone from UH... I'll have to fix that someday.

    1. Re:And the salad spinner scores a point by denzacar · · Score: 1

      1 - You do close the tubes first. Only risk is if they start flying.
      2 - Risk of flying tubes is reduced by the fact that the force pushes the tubes into the rim - into those holes you made by removing spokes. Not out of them.
      The faster you spin, the stronger they hold in place.
      Salad-spinner-solution uses plastic combs that loosely hold the tubes in place, so they'll actually have a very real problem of flying tubes after a while.
      3 - If you are still paranoid - saran wrap.
      Although, that takes us back to "supermarket country" every time we do an analysis. A simple plastic tarp would probably work as well.

      --
      Mit der Dummheit kämpfen Götter selbst vergebens