Curl  

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Kunstformen der Natur (1904) by Ernst Haeckel
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Kunstformen der Natur (1904) by Ernst Haeckel
Curly Locks
  1. A piece or lock of curling hair; a ringlet.
  2. A curved stroke or shape.
    • 1995, John Curtis, Julian Reade, & Dominique Collon, Art and Empire: Treasures from Assyria in the British Museum‎, page 184:
      Template:... the backs of their necks and their forelegs are decorated with curls and their necks and bodies are covered with fine, undulating lines.
  3. A spin making the trajectory of an object curve.
    • 1909, Harold Horsfall Hilton, The Six Handicap Golfer's Companion[1], page 38:
      It is possible to use the wind which blows from the left to the right by playing well into the wind with the slightest bit of curl on the ball Template:...
  4. Template:Curling Movement of a moving rock away from a straight line.
  5. Template:Weightlifting Any exercise performed by bending the arm, wrist, or leg on the exertion against resistance, especially those that train the biceps.
    • 2007 (Jan/Feb), Jon Crosby, "Your Winter Muscle Makeover", Men's Health, page 54:
      Now do a curl and an overhead press, keeping your palms facing in.
  6. Template:Calculus The vector field denoting the rotationality of a given vector field.
    The curl of the vector field <math>\vec{F}=(xyz,xyz,xyz)</math> is the vector field <math>\vec{\nabla}\times\vec{F}=(xz-xy,xy-yz,yz-xz)</math>.
    • 1995, Erich Prisner, Graph dynamics:
      In 2D, when Q is a polygonal domain, the singularities of Type (2) disappear because ψ is the scalar curl of u and is such that its vectorial curl is zero.
  7. Template:Calculus The vector operator, denoted <math>\rm{curl}\;</math> or <math>\vec{\nabla}\times\vec{\left(\cdot\right)}</math>, that generates this field.
  8. Template:Agriculture Any of various diseases of plants causing the leaves or shoots to curl up; often specifically the potato curl.
    • 1840, "Farmers' Department", The Family Magazine, volume 1, page 227:
      These potatoes, however, planted the next year, have a fair yield, untouched by the curl.





Unless indicated otherwise, the text in this article is either based on Wikipedia article "Curl" or another language Wikipedia page thereof used under the terms of the GNU Free Documentation License; or on original research by Jahsonic and friends. See Art and Popular Culture's copyright notice.

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