I'm thinking that I'll start a write up on the math, science, & history behind rotary engines. I'll just write a little bit for now, and update it further when I get home. You guys add as much as you can / correct anything I mess up, and hopefully it will get stickied.



https://upload.wikimedia.org/wikiped...uxTriangle.png



The Reuleaux Triangle:



The Reuleaux Triangle is the heart and soul of the roatary engine.

It's a polygon that is a curve of constant width, a curve where all the diameters are the same length.

It's named after Franz Reuleaux, a 19th century German engineer.

To quote wikipedia - " The Reuleaux triangle is the simplest nontrivial example of a curve of constant width - a curve in which the distance between two opposite parallel tangent lines to its boundary is the same, regardless of the direction of those two parallel lines. ( A Trivial example would be the circle )

heres your sign:



Learn to spell ROTARY

FELIX VAN WINKLESTEIN

I thought his name was Rip VanWinkle

Its RIP VonWankel





AKA: Your apex seals just nipped my ankles