Monday, August 30, 2010

toroid


In mathematics, a toroid is a doughnut-shaped object, such as an O-ring. Its annular shape is generated by revolving a geometrical figure around an axis external to that figure. When a rectangle is rotated around an axis parallel to one of its edges then a hollow cylinder (resembling a piece of straight pipe) is produced.

If the revolved figure is a circle, then the surface of such an object is known as a torus.

at
Labels: , ,

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)

talk nineteen to the dozen

  to speak rapidly and without stopping

  • abstemious
    Marked by, or spent in, abstinence ; as, an abstemious life.
  • Nureongi
    Nureongi (누렁이) and Hwangu (황구; 黃狗) are Korean terms meaning "Yellow Dog" used to refer to tannish mongrel or landrace of dog in...
  • acrolect - mesolect - basilect
    Three portions of the post-creole continuum : acrolect ( linguistics ) The variety of speech that is considered the standard form. m...