Slashdot Mirror


Bicycle Riding on Square Wheels

Roland Piquepaille writes "Before starting our long working week, let's relax with this story of a bicycle with square wheels. No, it's not a joke. And it even rides smoothly. But there is a trick: the road must have a specific shape. The Math Trek section of Science News Online tells us more about this strange bicycle -- actually a tricycle with two front wheels and one back wheel. Read this overview for some excerpts and a picture of the tricycle, or the original article for an additional animation."

37 of 406 comments (clear)

  1. Allrighty then by JSkills · · Score: 5, Funny

    I'll get right on that change-the-shape-of-all-of-the-roads project right away ...

    1. Re:Allrighty then by ehiris · · Score: 3, Funny

      And I'll get on the go from point A to point B without ever turning project right away. I wonder who will be done first.

  2. I guess... by Stu+Catz · · Score: 5, Funny

    they did re-invent the wheel, not a good invention though...

    1. Re:I guess... by rokzy · · Score: 2, Funny

      it's like Microsoft saw the wheel and thought "we gotta get us some of that!"

    2. Re:I guess... by aardvarkjoe · · Score: 2, Funny

      Within 4 years, the Open Source community will come up with a trike featuring round wheels but a suspension good enough for it to also interoperate with MSroads. Unlike the MS product, it will work with all versions of MSroads.

      Unfortunately, two years before Microsoft introduced flying cars, so nobody's using MSroads anymore anyway. However, OS users get to feel superior because, even though they get to their destination slower, they're not nearly as likely to blow up in midair.

      --

      How can we continue to believe in a just universe and freedom to eat crackers if we have no ale?
  3. hot dish? by garcia · · Score: 2, Funny

    See picture here

    Ya yew betcha! I wonder if that basket on the bike is to hold the hot dish? Only in Minnesota would we spend the time determining if square wheels would work... Perhaps from the potholes on 494?

    I reside in Minnesota so I am permitted to make these important scientific observations :)

  4. ingenious concept by brad3378 · · Score: 3, Funny

    Perfect for Michigan roads.

    --

    1. Re:ingenious concept by Roofus · · Score: 2, Funny

      I guess you have to be from Michigan to get that joke =) Are your roads made of half cylinders?

    2. Re:ingenious concept by Kyont · · Score: 2, Funny

      Let's not forget to cc: the Railroad Commission on the Island of Misfit Toys!

      --
      You shall see a cow on the roof of a cotton house.
  5. Could it be... by wviperw · · Score: 5, Funny

    The successor to the overly hyped Segway?

    Wheels? Who needs wheels when rhombuses work perfectly fine!

    --
    Nothing disturbs me more than blind loyalism towards some unrealistic and over-idealistic notion of one's nationality.
  6. Cities Will Be Redesigned Around This... by crazyaxemaniac · · Score: 2, Funny

    It's the next Segway!

  7. reinventing the wheel by GillBates0 · · Score: 2, Funny

    literally

    --
    An Indian-American Hindu committed to non-violent thought/speech/action alarmed by the global explosion of radical Islam
  8. What next? by Bobdoer · · Score: 5, Funny

    Will be be seeing pentagonal wheels or maybe even octogonal wheels? Or better yet n-gonal wheels where n is an incredibly large number?

  9. Read the whole article? by baudilus · · Score: 5, Funny
    From the article:

    Steering remains difficult, however. If you turn the square wheels too much, they get out of sync with the inverted catenaries.


    I wonder what shape my wheels have to be to ride smoothly over the screwed up roads that my town refuses to fix?
    1. Re:Read the whole article? by red+floyd · · Score: 3, Funny


      Duh! Infinity over 2!
      </humor>

      --
      The only reason we have the rights we have is that people just like us died to gain those rights. -- Cheerio Boy
  10. Now the road.... by ericlp · · Score: 5, Funny

    Today in the news: Inventors discover new way to make road construction ( and repair ) even more expensive....

  11. Before the square wheel... by theendlessnow · · Score: 5, Funny
    Stan Wagon invented "clippy" the Microsoft Paper Clip!! Genius! Sheer Genius!

    He's working on a water powered car I hear... just requires a really big hill.

    No word if the car will support square wheels or not.

  12. The wonder of assumptions... by MosesJones · · Score: 3, Funny


    Economics

    "The following theory assumes there are no external factors"

    External Factor = People

    Sociology

    "The following theory is based on a majority sample"

    Majority = 50 in a sample of 99.

    Slashdot

    "The following company/technology categorisation is correct given the sample data"

    Sample data = Slashdot

    And now we have

    "The following design is correct for a given definition of road"

    Reminds me of the old maths joke

    "1+2=4 for sufficiently large values of 2 and small values of 4"

    --
    An Eye for an Eye will make the whole world blind - Gandhi
  13. From the article by sczimme · · Score: 5, Funny


    A catenary is the curve describing a rope or chain hanging loosely between two supports. At first glance, it looks like a parabola. In fact, it corresponds to the graph of a function called the hyperbolic cosine.

    Yeah, I always get those confused...

    [frink]Oy, with the wheels and the squares and the riding and the graphing, ng'hey, glaven.[/frink]

    --
    I want to drag this out as long as possible. Bring me my protractor.
  14. Re:Good for elementary schoolers by Defender2000 · · Score: 5, Funny
    Being a bit of a bike nut I notice this bike would have some issues with turning and fixing flats.


    Don't you mean, fixing rounds?

    --
    ...I'll procrastinate tomorrow...
  15. *BOOM* by H3lldr0p · · Score: 5, Funny
    It was at this point that my brain attempted to explode:

    "So far, no one has found a road-and wheel combination in which the road has the same shape as the wheel."

  16. Old News! by back_pages · · Score: 4, Funny

    I've seen the South Park kids travel to French Canada. They have square wheels on their bicycles as well as their cars. I really don't see what the big excitement is all about.

  17. old joke by Al+Al+Cool+J · · Score: 3, Funny

    They should have used triangular wheels. One less bump.

  18. Re:Junior school physics by Binestar · · Score: 5, Funny

    So, how'd you make it move on it's own power? I'm intrigued.

    Cardboard fueled boiler for the steam engine I would assume.

    --
    Do you Gentoo!?
  19. Finally we get some improvements! by comedian23 · · Score: 4, Funny

    I was wondering when someone was going to get around to improving the wheel. The current version is so impractical, inefficient, and has such a limited range of applications it has been screaming for a face-lift. Someone get this guy a $250 million research grant ASAP!!!

  20. Re:WORTHLESS HORSESHIT! by Mr.+Darl+McBride · · Score: 2, Funny
    what's with you fucktarded slashdot people? what moron would make a fucking bike with fucking square wheels?
    If you've ever tried to bicycle across giant corrugated steel planes like I have, you would recognize the value of this contribution.

    Now if only the train to Chicago didn't run 1/3 as fast as the train to New York and leave 2 hours earlier.

  21. Meow/Chirp, Meow/Chirp by malia8888 · · Score: 5, Funny
    From the article: A square wheel can roll smoothly, keeping the axle moving in a straight line and at a constant velocity, if it travels over evenly spaced bumps of just the right shape. This special shape is called an inverted catenary.

    Dear Esteemed Committee: I would like a million dollar grant. As a good geneticist I am going to see if I can cross a cat with a canary. I will call it "cantenary"! (Since you refused my grant for the monkey with four asses research) Part bird and part cat--that is something useful. Regards, Dr. Mephisto...

    --
    Harpo Tunnel Syndrome--my wrist feels funny.
  22. Re:Web design with Mathematica?!? by vanza · · Score: 5, Funny

    Dude, we're talking about *square wheels*. The guy surely is not a big fan of using the right tool for the job (in any situation, it seems).

    --
    Marcelo Vanzin
  23. Re:The answer is - A circle! by Havokmon · · Score: 2, Funny
    wouldn't a common circular wheel, while going over a steep hill
    No, because the hill is really at best a half circle.

    Yeah, but the Earth is a circle ;)

    --
    "I can't give you a brain, so I'll give you a diploma" - The Great Oz (blatently stolen sig)
  24. Re:Web design with Mathematica?!? by Just+Some+Guy · · Score: 2, Funny
    I'd say you're right. When all you have is a square, everything begins to look like a fractalated surface?

    If he uses Mathematica for his "real" website, I wonder if he blogs with Octave?

    --
    Dewey, what part of this looks like authorities should be involved?
  25. Lets get wild with the sides. by acarrig · · Score: 5, Funny
    This whole 4 sided wheel thing is great. But lets keep going.

    If 4 wheels needs small hills to run on.... lets add a side so we have 5 sides. 5 sides will need smaller hills saving material in the rebiuld the road project.

    And if 5 saves materal lets keep adding sides... 6, 8, 20, 100, 1000. Imagine how small the hills will be... we don't need to redo the roads as much.

    Infact if we keep adding sides... we'll get.... a circular wheel... with no need to change the roads.

    Well. That was easy.

  26. Re:Spirograph by pair-a-noyd · · Score: 5, Funny

    Damn it! You guys /.'ed Hasbro!
    And I wanted to see the new Spirograph stuff!

  27. Re:Square Wheel? by black+mariah · · Score: 1, Funny

    I suggest human interaction, and a lot of it. FAST.

    --
    'Standards' in computing only impress those who are impressed by things like 'standards'.
  28. Re:Junior school physics by p3d0 · · Score: 2, Funny

    Ok, let's agree that the smoothness of the ride really depends on the vertical motion of the driver. :-)

    --
    Patrick Doyle
    I mod down every jackass who puts his moderation policy in his sig. Oh, wait a sec....
  29. And... by Bluesman · · Score: 2, Funny

    ...to improve his "ride," Stan Wagon will be adding a "spoiler" (shaped like a rectangle) and a cylindrical exhaust "muffler" to make the vehicle more appealing to "the bitches."

    --
    If moderation could change anything, it would be illegal.
  30. Re:Wheel / Road Same Shape? by Anonymous Coward · · Score: 1, Funny

    How about riding on the outside of a round structure large enough to exert a significant gravitational force on the rider?

    Oh, wait a ....

  31. Re:Lets get wild with the sides - fractals by SmackCrackandPot · · Score: 2, Funny

    But if we use a fractal patterned tread, we'll need an infinite amount of road surface!