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1. Dictionary

   curl

   /kəːl/

   verb

   • 1. form or cause to form into a curved or spiral shape: "her fingers curled round the microphone" Similar windtwineentwinewrapcrimpwavetongpermgo curlygo frizzyfrizz outfrizzlecrinkle
   • ▪ sit or lie with the knees drawn up: "she curled up and went to sleep" Similar nestlesnugglecuddlehuddlesnug down
   • ▪ move or cause to move in a spiral or curved course: "a wisp of smoke curling across the sky" Similar spiralcoilwreathetwirlswirlfurlwindcurvebendtwisttwist and turnloopmeandersnakecorkscrewzigzag
   • ▪ (with reference to one's mouth or upper lip) raise or cause to raise slightly on one side as an expression of contempt or disapproval: "Maria saw his lip curl sardonically"
   • 2. (in weight training) lift (a weight) using only the hands, wrists, and forearms: "slowly curl the barbell to shoulder height"
   • 3. play at the game of curling: "during the severe spell in 1740, men curled on the pond"

   noun

   • 1. something in the shape of a spiral or coil, especially a lock of hair: "her blonde hair was a mass of tangled curls" Similar ringletcorkscrewcoilkinkwavekiss-curlspiralcoilwreathtwirlswirlfurltwistcorkscrewcurlicuewhorlhelixgyre
   • ▪ a curling movement: "the sneering curl of his lip"
   • ▪ (with reference to a person's hair) a state or condition of being curled: "your hair has a natural curl"
   • ▪ see leaf curl
   • 2. a weightlifting exercise involving movement of only the hands, wrists, and forearms: "a dumb-bell curl"
   • 3. a function giving a measure of the rotation of a vector field.

   Word Origin late Middle English: from obsolete crulle ‘curly’, from Middle Dutch krul.

   Scrabble Points: 6

   • C

     3

   • U

     1

   • R

     1

   • L

     1

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2. en.wikipedia.org › wiki › Moment_of_inertiaMoment of inertia - Wikipedia

   en.wikipedia.org › wiki › Moment_of_inertia

   • Cached

   23 hours ago · The moment of inertia is defined as the product of mass of section and the square of the distance between the reference axis and the centroid of the section. Spinning figure skaters can reduce their moment of inertia by pulling in their arms, allowing them to spin faster due to conservation of angular momentum.