I found an answer from www.quora.com

Is it possible to construct a wheel in a shape other than a circle ...

Jul 4, 2016 ... But, only this is not enough for its utility in practical applications,the shape ... A Reuleaux triangle (along with all other curves of constant width) can roll ... “is it possible for a vehicle to have wheels if other shape than a circle?”.

For more information, see Is it possible to construct a wheel in a shape other than a circle ...

I found an answer from en.wikipedia.org

Wankel engine - Wikipedia

The Mazda RX-8, a sports car powered by a Wankel engine and the last production car using a Wankel engine. Norton Classic air-cooled twin-rotor motorcycle. The Wankel engine is a type of internal combustion engine using an eccentric rotary design to ... The rotor is similar in shape to a Reuleaux triangle with the sides somewhat ...

For more information, see Wankel engine - Wikipedia

I found an answer from au.answers.yahoo.com

Why are manhole covers round? | Yahoo Answers

(A Reuleaux triangle or other curve of constant width would also serve ... Circular covers do not need to be rotated to align them when covering a circular manhole. ... The width of a square would be greater than the diameter of a circle for .... What industries does Tesla operate other than the auto industry?

For more information, see Why are manhole covers round? | Yahoo Answers

I found an answer from en.wikipedia.org

Reuleaux triangle - Wikipedia

A Reuleaux triangle [ʁœlo] is a shape formed from the intersection of three circular disks, each having its center on the boundary of the other two. Its boundary is a curve of constant width, the simplest and best known such .... More generally, for every curve of constant width, the largest inscribed circle and the smallest ...

For more information, see Reuleaux triangle - Wikipedia

I found an answer from demonstrations.wolfram.com

Bicycle Wheels Using Curves of Constant Width - Wolfram ...

Jan 6, 2014 ... When rolled as wheels of a bicycle curves of constant width provide a uniform ... three and infinity, and include Reuleaux triangles and circles.

For more information, see Bicycle Wheels Using Curves of Constant Width - Wolfram ...

I found an answer from www.reddit.com

Perfectly stable bike with triangular wheels : blackmagicfuckery

Jul 7, 2017 ... Thinking of getting a rx7 or rx8 as a second car with my speed3. .... Actually Mazda rotary wheels are not true roleaux triangles, they're slightly different .... Instead, the weight of the bike is resting on the top of the wheel, which would keep ..... They aren't actually triangles, they are shapes of constant width.

For more information, see Perfectly stable bike with triangular wheels : blackmagicfuckery

I found an answer from www.reddit.com

There are curves of constant width besides circles and spheres ...

Aug 12, 2014 ... /r/ALLThere are curves of constant width besides circles and spheres (i.imgur. com) ...... circles, and using the shape in the middle as a wheel, but in 3 dimensions instead. .... at all; the Reuleaux triangle has constant width, but not constant radius. ..... When are we going to see cars with triangle wheels then?

For more information, see There are curves of constant width besides circles and spheres ...

I found an answer from www.quora.com

Why aren't manhole covers triangular? - Quora

So, any curve of constant width, can rotate between pair of parallel lines without changing their distance, and yeah they can work as wheels same as a disk, with little bit ... but Reuleaux triangle would have the smallest area and the circle, which is ... Then again, triangular manhole covers are, albeit not prevalent, popular in ...

For more information, see Why aren't manhole covers triangular? - Quora

I found an answer from math.stackexchange.com

geometry - Reuleaux Rollers - Mathematics Stack Exchange

J. M. is not a mathematician Nov 3 '10 at 14:31 ... To easily see why the solution below is insufficient, note that the curve below ... I'll provide a solution for the triangle. ... we see that a road amenable to Reuleaux wheels consists of a series of bumps. ..... As Z should keep its second coordinate constant we get the condition.

For more information, see geometry - Reuleaux Rollers - Mathematics Stack Exchange