enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Alexander Overwijk - Wikipedia

    en.wikipedia.org/wiki/Alexander_Overwijk

    To further his claim, he would hand-draw a circle on the blackboard. In 2007, a video of Overwijk drawing a near-perfect circle for his class went viral on YouTube . [ 5 ] [ 6 ] Although the original story was a fabrication, he hosted a real "World Freehand Circle Drawing Championship" as a fundraiser for the Canadian Cancer Society following ...

  3. Aristotle's wheel paradox - Wikipedia

    en.wikipedia.org/wiki/Aristotle's_wheel_paradox

    Aristotle's Wheel. The distances moved by both circles' circumference reference points – depicted by the blue and red dashed lines – are the same. Aristotle's wheel paradox is a paradox or problem appearing in the pseudo-Aristotelian Greek work Mechanica. It states as follows: A wheel is depicted in two-dimensional space as two circles. Its ...

  4. Roundness - Wikipedia

    en.wikipedia.org/wiki/Roundness

    Roundness = ⁠ Perimeter 2 / 4 π × Area ⁠. This ratio will be 1 for a circle and greater than 1 for non-circular shapes. Another definition is the inverse of that: Roundness = ⁠ 4 π × Area / Perimeter 2 ⁠, which is 1 for a perfect circle and goes down as far as 0 for highly non-circular shapes.

  5. How to Draw a Perfect Circle - Wikipedia

    en.wikipedia.org/wiki/How_to_Draw_a_Perfect_Circle

    How to Draw a Perfect Circle (Portuguese: Como Desenhar um Círculo Perfeito) is a 2009 Portuguese drama film directed by Marco Martins and starring Rafael Morais, Daniel Duval, Joana de Verona, Beatriz Batarda, and Albano Jeronimo. Its plot revolves around a young man named Guilherme and his sister Sofia who grow up sharing experiences and ...

  6. Circle packing in a circle - Wikipedia

    en.wikipedia.org/wiki/Circle_packing_in_a_circle

    Of these, solutions for n = 2, 3, 4, 7, 19, and 37 achieve a packing density greater than any smaller number > 1. (Higher density records all have rattles.) [ 10 ] See also

  7. Mouse wheel - Wikipedia

    en.wikipedia.org/wiki/Mouse_wheel

    Mouse wheel may refer to: Hamster wheel; Treadmill; Treadwheel; The scroll wheel of a computer mouse This page was last edited on 5 July 2023, at 18:37 (UTC) ...

  8. Ford circle - Wikipedia

    en.wikipedia.org/wiki/Ford_circle

    In mathematics, a Ford circle is a circle in the Euclidean plane, in a family of circles that are all tangent to the -axis at rational points. For each rational number p / q {\displaystyle p/q} , expressed in lowest terms, there is a Ford circle whose center is at the point ( p / q , 1 / ( 2 q 2 ) ) {\displaystyle (p/q,1/(2q^{2}))} and whose ...

  9. Lottery wheeling - Wikipedia

    en.wikipedia.org/wiki/Lottery_wheeling

    Once 5 numbers are drawn, at least one ticket is guaranteed to contain 4 of the drawn numbers; that is to say, the wheel system is guaranteed a 4-win if 5 of the 9 numbers are drawn. Note that these tickets do not contain every combination of 4 numbers (such as 2, 3, 4, 7); the win is only guaranteed after the 5th drawn number.