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MacGyver Physics

counterfriction writes "This month's issue of Symmetry, a magazine jointly published by SLAC and Fermilab, is featuring an article that points out the sometimes extemporaneous and unconventional solutions physicists have come up with in (and out of) the laboratory. From the article: 'Leon Lederman ... used a pocket knife, tape, and items on anyone's grocery list to confirm that interactions involving the weak force do now show perfect mirror symmetry, or parity, as scientists had long assumed.'"

35 of 165 comments (clear)

  1. Changes over time? by AJWM · · Score: 4, Funny

    to confirm that interactions involving the weak force do now show perfect mirror symmetry, or parity,

    As compared to last week, when they didn't.

    --
    -- Alastair
    1. Re:Changes over time? by martin-boundary · · Score: 4, Insightful
      Actually, even though you're joking, this is the essence of the scientific method. Hard science works because anybody can (and should, periodically) check that the assumptions are true now. There's no room for faith in the truth of past experiments.

      An experiment which isn't repeated again and again by as many people as possible is a meaningless experiment. That's one of the reasons why undergraduate physics students are given classic experiments to (re)confirm themselves in labwork.

    2. Re:Changes over time? by Ironix · · Score: 5, Informative

      And last week they most certainly didn't! The actual article stated the following:

      "He used a pocket knife, tape, and items on anyone's grocery list to confirm that interactions involving the weak force do not show perfect mirror symmetry, or parity, as scientists had long assumed."

      Couldn't the author of the slashdot post have at leased used the cut and paste features of his computer?

      --
      Still #1 -- Lonely Gay Geek
    3. Re:Changes over time? by kevinadi · · Score: 4, Interesting
      From the TFA:

      Intrigued by the experiments of Madame Chien-Shiung Wu, Lederman called his friend, Richard Garwin, to propose an experiment that would detect parity violation in the decay of the pi meson particle. That evening in January 1957, Lederman and Garwin raced to Columbia's Nevis laboratory and immediately began rearranging a graduate student's experiment into one they could use. "It was 6 p.m. on a Friday, and without explanation, we took the student's experiment apart," Lederman later recalled in an interview. "He started crying, as he should have."

      Great mind, horrible human being.
    4. Re:Changes over time? by bladesjester · · Score: 5, Insightful

      Actually it's a matter of ethics. If you can't expect someone to do something properly on the small scale, how can you trust them to do the right thing on a large scale?

      Them destroying the ongoing work of another person just to save themselves a little bit of work shows a supreme lack of not only ethics but of decency.

      Science is more than just a result on a data sheet. It's also the path you take to get there (if you decide it is proper to go there at all).

      --
      Everything I need to know I learned by killing smart people and eating their brains.
    5. Re:Changes over time? by Bodrius · · Score: 5, Insightful

      Risking someone else's sleepless nights is not a matter of genius and guts, or avoiding bureaucracy.

      It is a matter of being an asshole, genius or not.

      I agree with you about the 9-5, and the need to grasp inspiration on the spot to keep creativity alive.
      But that is no excuse to trample over other people's work without asking for their permission / collaboration.

      You may be very convinced of your own genius and inventiveness. Good for you.
      But you might as well be destroying more important, time-consuming, work by other geniuses in the room.

      If you don't have the guts to work the extra sleepless night setting up your own experiment, or (gasp) actually asking for the help if needed, then you really didn't deserve to find the answer.

      --
      Freedom is the freedom to say 2+2=4, everything else follows...
    6. Re:Changes over time? by Anonymous Coward · · Score: 4, Funny

      Couldn't the author of the slashdot post have at leased used the cut and paste features of his computer?
      Perhaps if the author had bought his cut-and-paste feature new rather than leasing a used one, it would've worked properly. I'm guessing the previous owner broke it.
    7. Re:Changes over time? by Antique+Geekmeister · · Score: 4, Insightful

      You don't have to repeat it as many times as possible! That's just wasting time and money. Doing experiments with variations, to confirm what the limits of the theory are and testing related hypotheses is much more effective.

      The real reason undergraduates get those classic experiments is to teach them how to do experiments, the limits of their instruments, how to record all relevant data, the difference between accuracy and precision, etc. The big experiment being done is actually on the students themselves, to see if they've learned to do reliable experiments. You absolutely do not want to do sensitive experiments with students whose reliability and even whose honesty have not yet been tested in lab work with known expected results.

    8. Re:Changes over time? by dasunt · · Score: 4, Interesting

      There is a beautiful essay by Feynman about the classical rats-in-a-maze experiment, and how the scientist discovered that he had to change many conditions of the maze before the rats would learn how to run the maze themselves, instead of relying on other navigational information.

      Feynman also comments that this scientist's work with rats was more or less completely ignored, and the rest of the field continued to run their rats-in-a-maze experiments the traditional old-fashioned way.

  2. But what happened to the... by bluemonq · · Score: 4, Funny

    ...chewing gum wrapper?! Everybody knows that MacGuyver would use a chewing gum wrapper!

    1. Re:But what happened to the... by MillionthMonkey · · Score: 4, Funny

      A chewing gum wrapper rotates the polarization of light that passes through it.

      You can prove this with two polarizers at right angles if you crumple up a piece of chewing gum wrapper and stick it between them. When held up to a light source, only the light that goes through through the chewing gum wrapper makes it through the second polarizer- the rest is all dark. And since the rotation is frequency dependent, the chewing gum wrapper is glowing in multiple colors. Especially if you do a good job when you crumple it up. It would look great on TV.

  3. Doctor Who by thoughtlover · · Score: 5, Insightful

    So, I'm watching Doctor Who and someone asks, "Who is this guy?" and the reply's always the same, "He's the Doctor."

    So I think to myself, "How does this guy always get out of these crazy situations?

    "He's like some time-traveling MacGyver," I think to myself as I switch over to trusty, old Slashdot, only to see that same name right off.

    --
    No sig for you! Come back one year!
    1. Re:Doctor Who by The13thDr · · Score: 4, Informative

      You know there is a reason for that similarity, right? Terry Nation (creator of Dr. Who's Daleks) was a producer and writer during MacGyver's first two seasons.

    2. Re:Doctor Who by ColaMan · · Score: 4, Insightful

      "He's like some time-traveling MacGyver," I think to myself

      Blasphemer!

      Dr. Who is not like some time-travelling MacGyver, MacGyver is like some temporally-impaired Dr. Who.

      There's a hell of a difference.

      --

      You are in a twisty maze of processor lines, all alike.
      There is a lot of hype here.
  4. The original hardware store experiment by edwardpickman · · Score: 5, Funny

    Isn't about time some one confirmed the cat, box and pistol experiment? Schrödinger Cat has been living on borrowed time long enough.

    1. Re:The original hardware store experiment by SpottedKuh · · Score: 5, Funny

      Schrödinger Cat has been living on borrowed time long enough.

      Or has it?
    2. Re:The original hardware store experiment by arpy · · Score: 5, Funny

      We appear to have Schrödingered their web server: We all went to look and now it's dead.

    3. Re:The original hardware store experiment by ookabooka · · Score: 4, Interesting

      Or has it?

      Ever wonder why the cat doesn't count as an observer? What does it feel like to be alive and dead at the same time? Do you have to have a soul to observe life or death?

      --
      If you are about to mod me down, keep in mind that this post was most likely sarcastic.
    4. Re:The original hardware store experiment by SocialWorm · · Score: 4, Interesting

      ...or at least I tried to, and the link even appeared in the preview, but somehow it got eaten: http://en.wikipedia.org/wiki/Quantum_suicide

      --
      My Blog: http://nic.dreamhost.com/
    5. Re:The original hardware store experiment by someone1234 · · Score: 4, Informative

      I guess, even a light particle would count as observer. If I understood the concept, the whole setup is just symbolic and wouldn't work at all.

      --
      Patents Drive Free Software as Hurricanes Drive Construction Industry
    6. Re:The original hardware store experiment by nih · · Score: 4, Funny

      Do you have to have a soul to observe life or death? considering that the 'soul' doesn't exist, then no
      --
      I'm a rabbit startled by the headlights of life :(
  5. big deal by Anonymous Coward · · Score: 5, Funny

    I once used spaghetti, vaseline, plastic wrap, and an ovaltine jar to make a synthetic pussy. But you don't see me bragging about it.

    1. Re:big deal by StarfishOne · · Score: 4, Funny

      ".. any interesting results?"

      All possible girlfriend wave functions collapsed instantly! :P

  6. MacGyver Physics According To Engineers... by __aaclcg7560 · · Score: 4, Funny

    The real trick is to do it with duct tape and baling wire.

  7. The Article (server /.'d) by Ironix · · Score: 4, Informative

    volume 03 issue 08/09 oct/nov 06
    Masters of Improv
    Photo: Reidar Hahn, Fermilab

    World-class detective Angus MacGyver of the hit 1980s television show MacGyver could jury-rig almost anything with duct tape and a pocket knife. High-energy physics labs demand as much and more from technicians and engineers, relying on their creativity and intelligence to navigate technical quagmires. And when a problem demands it, they deliver--engineering tiny cameras mounted on bocce balls that snake through 10,000 feet of steel piping; rigging a 13-ton cement block to bash deformed brass into shape; or aiming a high-powered laser around corners to unblock water lines. Unlike MacGyver's fixes--such as the fuse he repaired with a chewing-gum wrapper--some of these devices last.

    An improvised grinder
    An improvised grinder sanded welds along the long, straight sections of 10,000 feet of pipe at Fermilab. The sander within the rotating silver cylinder cleaned each weld.

    Photo: Fred Ullrich, Fermilab

    Leon Lederman, the Nobel Prize-winning former director of Fermilab, is a legendary lab MacGyver. He used a pocket knife, tape, and items on anyone's grocery list to confirm that interactions involving the weak force do not show perfect mirror symmetry, or parity, as scientists had long assumed. Just as a watch hand always sweeps clockwise, nuclei of atoms eject electrons in a preferred direction as they decay, rather than spraying them randomly. The technical term for this is "parity violation."

    Intrigued by the experiments of Madame Chien-Shiung Wu, Lederman called his friend, Richard Garwin, to propose an experiment that would detect parity violation in the decay of the pi meson particle. That evening in January 1957, Lederman and Garwin raced to Columbia's Nevis laboratory and immediately began rearranging a graduate student's experiment into one they could use. "It was 6 p.m. on a Friday, and without explanation, we took the student's experiment apart," Lederman later recalled in an interview. "He started crying, as he should have."

    The men knew they were onto something big. "We had an idea and we wanted to make it work as quickly as we could--we didn't look at niceties," Lederman said. And, indeed, niceties were overlooked. A coffee can supported a wooden cutting board, on which rested a Lucite cylinder cut from an orange juice bottle. A can of Coca-Cola propped up a device for counting electron emissions, and Scotch tape held it all together.

    "Without the Swiss Army Knife, we would've been hopeless," Lederman said. "That was our primary tool."

    Their first attempt, at 2 a.m., showed parity violation the instant before the Lucite cylinder--wrapped with wires to generate the magnetic field--melted.

    "We had the effect, but it went away when the instrument broke," Lederman said. "We spent hours and hours fixing and rearranging the experiment. In due course, we got the thing going, we got the effect back, and it was an enormous effect. By six o'clock in the morning, we were able to call people and tell them that the laws of parity violate mirror symmetry," confirming the results of experiments led by Wu at Columbia University the month before.

    Another giant figure in physics, founding Fermilab director Robert Wilson, is the hero of a widely circulated tale.

    MacGyver-mania
    MacGyver aired in more than 40 countries between 1985 and 1992, in some cases leaving a lasting imprint on the local language. In South Korea, for instance, call a knife a "Maekgaibeo kal" and people know you mean the Swiss Army-type knife the TV character carried. Malaysians call their pocket knives "Pisau MacGyvers" or just plain "MacGyver knives." In Norway and parts of Finland, duct tape is sometimes called "MacGyver tape."

    Ernie Malamud, a physicist at Fermilab, remembers working with Wilson during his graduate studies at Cornell. The pair wanted to use helium gas, often used to fill balloons, to locate a leak in the glass vacuum chamber; but they discovered the hose from the

    --
    Still #1 -- Lonely Gay Geek
  8. List of problems solved. by Anonymous Coward · · Score: 5, Interesting
  9. Oblig Simpsons Quote by Hoi+Polloi · · Score: 4, Funny

    Patty & Selma: "Love me, love MacGyver."

    --
    It is by the juice of the coffee bean that thoughts acquire speed, the teeth acquire stains. The stains become a warning
  10. Dear MacGyver- by Vituperator · · Score: 5, Funny

    Dear MacGyver-

    Enclosed is a rubber band, a paper clip, and a drinking straw. Please save my dog.

    1. Re:Dear MacGyver- by revolu7ion · · Score: 5, Funny

      Dear Vituperator,
      Please find your dog attached. Don't thank me - thank the moon's gravitational pull.

      Sincerely
      MacGyver

      --
      Jesus Saves
  11. My schtick by stox · · Score: 4, Interesting

    When repairing some of the main computing systems, at Fermilab, I would joke that I needed a rubber chicken to repair the problem quickly, otherwise it would take a few hours. The one Christmas, one of the Ops staff bought me a pair of them. From then on, the joke was, when called at 3AM in the morning, did I have my chickens handy?

    --
    "To those who are overly cautious, everything is impossible. "
  12. Of course. by FlyingSquidStudios · · Score: 4, Funny

    I always knew it was MacGyver physics that made the Stargate work!

  13. You know you're reading /. by Opportunist · · Score: 4, Funny

    ...when something like this is modded "informative"...

    Tells you something about the audience.

    --
    We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
  14. The "mysterious" grad student's name. by Anonymous Coward · · Score: 5, Informative

    The name of Lederman's graduate assistant was Marcel Weinrich, which Lederman does credit as working with him on the project. Lederman, Garwin and Weinrich are all on the paper confirming the results on parity violation.

  15. Person by Mark_MF-WN · · Score: 4, Funny

    They didn't destroy the work of a person, they destroyed the work of a graduate student. There's a difference.

  16. Of course there's always Dick Feynman... by jpellino · · Score: 4, Interesting

    ... at the Rogers Commission hearings.
    C-clamp: $1.79
    Styrofoam cup of ice water: $.50
    Watching the expressions on the faces of NASA scientists who had inconclusive data from millions of dollars of testing? Priceless.

    Also he allegedly was the only person to see the Trinity blast - as he figured the auto windshield glass would protect him from the UV, just as long as he ducked before the blast wave hit the glass.

    Plus the one about Enrico Fermi at Trinity: he put some pieces of paper on the ground, scraped their start and finish positions in the sand with his toe, and based on the distance moved, the paper mass, and the distance to the blast, estimated the yield pretty darn close for that method.

    --
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