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The book was published June 1981. [2] It became the best-selling book of 1981, selling 6,680,000 copies that year. [1] It was the fastest-selling title in the 36-year history of Bantam Books. [1] In November 1981 Nourse published a sequel, The Simple Solutions to Cubic Puzzles, as an aid to the numerous puzzles that were spawned by the Cube ...
Here is a brief overview of what Xcas is able to do: [9] [10] Xcas has the ability of a scientific calculator that provides show input and writes pretty print; Xcas also works as a spreadsheet; [11]
[1] The maximal number of face turns needed to solve any instance of the Rubik's Cube is 20, [2] and the maximal number of quarter turns is 26. [3] These numbers are also the diameters of the corresponding Cayley graphs of the Rubik's Cube group. In STM (slice turn metric), the minimal number of turns is unknown.
When an element of mass is offset from the axis of rotation, centrifugal force will tend to pull the mass outward. The elastic properties of the shaft will act to restore the “straightness”. If the frequency of rotation is equal to one of the resonant frequencies of the shaft, whirling will occur. In order to save the machine from failure ...
The Wankel engine has a spinning eccentric power take-off shaft, with a rotary piston riding on eccentrics on the shaft in a hula-hoop fashion, with the crown gear with one and a half times the number of teeth as on the eccentric shaft. Thus the Wankel is a 2:3 type of rotary engine, i.e., its housing's inner side resembles a two lobes oval ...
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The bodies of a California mother of three and her 19-year-old son were found dead by her daughter days before the family was set to celebrate Christmas.
The 260, also known as the 259, displaces 259.2 cu in (4.2 L; 4,247 cc) and was introduced in the middle of 1955 by Plymouth. It was a bored-out 241, having a 3 + 9 ⁄ 16 in (3.5625 in) bore and keeping the 3 + 1 ⁄ 4 in (3.25 in) stroke (90.5 mm × 82.6 mm). This engine was also used on 1955 and 1956 Dodge trucks.