Riding on Square Wheels

Stan Wagon, a mathematician at Macalester College in St. Paul, Minn., has a
bicycle with square wheels. It’s a weird contraption, but he can ride it
perfectly smoothly. His secret is the shape of the road over which the wheels
roll.

Stan Wagon rides his square-wheeled trike over a special
roadway.
Courtesy of Stan

Riding on Square Wheels (Science News)

For those of you who might feel this blog neglects geometry, and the inverted catenary in particular.

Quibble: that looks like a tricycle to me — there’s a basket in between two back wheels.

Post was last modified on 1 Feb 2023 10:29 pm

View Comments

  • HA HA! That reminds me of an ad for a pizza place (Ledo's) that says they serve rectangular pizzas because they don't cut corners like their competitors do.

  • Karissa, you're right -- I didn't look closely at the content of the caption when I cut-and-pasted (which is why the caption cuts off Stan's last name). Oh, well.
     
     Rosemary, I don't know, but if all its corners falls off, the trike still gets around.
     
     ("Haha hah ha ha ha !")
     
     

  • Actually, I saw a guy on Leno demonstrating this same thing several months ago...

  • That's awesome to see it illustrated! In my high school calculus class, we did a little project with Lego blocks to create vehicles, and one group surely did create a little car with square wheels. The catch was that we had to make them travel for at least 20 feet on their own power, but that we could create the surface on which the vehicle would be tested. :^)
     
     btw, Dr. Jerz, it says in the little caption that it is a tricycle.

Share
Published by
Dennis G. Jerz

Recent Posts

Creating textures for background buildings in a medieval theater simulation project. I can always improve this later. #blender3d

Creating textures for background buildings in a medieval theater simulation project. I can always improve…

4 hours ago

Yesterday my stack of unmarked assignments was about 120, so this is not bad.

Nothing in this stack is pressing, but they do include rough drafts of final papers,…

17 hours ago

ai, ai, ai: critical thinking and literacy won’t save you

Here’s the underlying problem. We have an operating image of thought, an understanding of what…

18 hours ago

Representing the Humanities at Accepted Students Day.

Representing the Humanities at Accepted Students Day.

4 days ago

The daughter opens another show. This weekend only.

The daughter opens another show. This weekend only.

5 days ago

How to Disagree Academically: Using Graham’s “Disagreement Hierarchy” to organize a college term paper.

How to Disagree Academically: Using Graham's "Disagreement Hierarchy" to organize a college term paper.

5 days ago