Strange shape-what is mathematics behind it?



Cut the pipe radially at some place so that cut is a perfect circle.
Hold one end motionless. Twist another by 180 degrees. Glue back to the
other end.

Must get a spiral shape .It You turn enough many times, You get double
helix running around in circle. But let us start with 180 degrees. k=1.

What is also of interest, what is the radius of such a shape? How do
You define it?

So where do I have to look for a formula how the radius of such a thing
is defined, and how does it depend on R ( of the initial circle), r (
of pipe) , pi, e, k - number of twists, elasticity of volume,
elasticity of surface?

What is the shape of suface waves?

.



Relevant Pages

  • Re: Strange shape-what is mathematics behind it?
    ... helix running around in circle. ... So where do I have to look for a formula how the radius of such a thing ... of pipe), pi, e, k - number of twists, elasticity of volume, ...
    (sci.physics)
  • Re: Strange shape-what is mathematics behind it?
    ... helix running around in circle. ... So where do I have to look for a formula how the radius of such a thing ... of pipe), pi, e, k - number of twists, elasticity of volume, ...
    (sci.physics)
  • Re: Strange shape-what is mathematics behind it?
    ... helix running around in circle. ... what is the radius of such a shape? ... the "pipe", and the closing of the pipe onto itself is a secondary ... of pipe), pi, e, k - number of twists, elasticity of volume, ...
    (sci.physics)
  • [SUMMARY] The Smallest Circle (#157)
    ... about the smallest enclosing circle problem... ... def initialize(*coords) ... y_big is the minimum radius of a circle ... always been the square of the radius, we finally take its square root ...
    (comp.lang.ruby)
  • Re: need help with homework
    ... So if you solve for circumference you get pi x diameter, ... Now if you know relation between diameter and radius, ... Center of circle splits diameter into two radii. ... circular disk, i.e. a disk whose perimiter is a circle. ...
    (sci.math)