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  2. Characteristic length - Wikipedia

    en.wikipedia.org/wiki/Characteristic_length

    In physics, a characteristic length is an important dimension that defines the scale of a physical system. Often, such a length is used as an input to a formula in order to predict some characteristics of the system, and it is usually required by the construction of a dimensionless quantity, in the general framework of dimensional analysis and in particular applications such as fluid mechanics.

  3. Lill's method - Wikipedia

    en.wikipedia.org/wiki/Lill's_method

    For each root, the paper is folded until the start point (black circle) and end point (black square) are reflected onto these lines. The axis of reflection (dash-dot line) defines the angled path corresponding to the root (blue, purple, and red). The negative of the gradients of their first segments, m, yield the real roots 1/3, 1, and −2.

  4. Process duct work - Wikipedia

    en.wikipedia.org/wiki/Process_Duct_Work

    Methods to avoid this problem may include Duct insulation; specialty steels, such as COR-10 steels or A304 SS or A316L SS, Duct internal coatings. Duct internal coatings are expensive, and may cost more than the stack plate they protect. Uncoated stacks cement plant stacks, with condensation, have been noted to last less than two years.

  5. Rod calculus - Wikipedia

    en.wikipedia.org/wiki/Rod_calculus

    Now there is a square area 234567, find one side of the square. [8] The algorithm is as follows: Set up 234567 on the counting board, on the second row from top, named shi; Set up a marker 1 at 10000 position at the 4th row named xia fa; Estimate the first digit of square root to be counting rod numeral 4, put on the top row (shang) hundreds ...

  6. Dynamic rectangle - Wikipedia

    en.wikipedia.org/wiki/Dynamic_rectangle

    The root-3 rectangle is also called sixton, [6] and its short and longer sides are proportionally equivalent to the side and diameter of a hexagon. [7] Since 2 is the square root of 4, the root-4 rectangle has a proportion 1:2, which means that it is equivalent to two squares side-by-side. [7] The root-5 rectangle is related to the golden ratio ...

  7. NFL wild card playoff predictions: Who will win every matchup ...

    www.aol.com/nfl-wild-card-playoff-predictions...

    The answer to those questions will start to formalize as soon as Saturday. Here are my NFL wild-card round predictions: AFC 7. Denver Broncos (10-7) vs. 2. Buffalo Bills (13-4)

  8. Constructible number - Wikipedia

    en.wikipedia.org/wiki/Constructible_number

    The square root of 2 is equal to the length of the hypotenuse of a right triangle with legs of length 1 and is therefore a constructible number. In geometry and algebra, a real number is constructible if and only if, given a line segment of unit length, a line segment of length | | can be constructed with compass and straightedge in a finite number of steps.

  9. As wildfire smoke chokes LA, see how many-bad air days your ...

    www.aol.com/wildfire-smoke-chokes-la-see...

    The wind bends palm trees as the Eaton Fire moves through the area on Jan. 8, 2025, in Altadena, CA. Fueled by intense Santa Ana Winds, the Palisades Fire has grown to over 2,900 acres, and 30,000 ...