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The introduction in the early 1950s of flexible vaulting poles made from composites such as fiberglass or carbon fiber allowed vaulters to achieve greater height. [ 1 ] [ 2 ] [ 3 ] The present record of 6.26 m ( 20 ft 6 + 1 ⁄ 4 in) was set by Armand Duplantis , competing for Sweden at the Silesia Diamond League .
The tip of the vaulting pole is angled higher than eye level until three paces from takeoff, when the pole tip descends efficiently, amplifying run speed as the pole is planted into the vault box. The faster the vaulter can run and the more efficient their take-off is, the greater the kinetic energy that can be achieved and used during the vault.
The calculator also handles vectors, matrices and complex numbers better than the TI-83. One drawback, however, is that the statistics package on the TI-83 range doesn't come preloaded on the TI-86. However, it can be downloaded from the Texas Instruments program archive and installed on the calculator using the link cable. [1]
1:54.18 Sal Allah 1960-Jan-01 45 Pomona, New Jersey: 2005-Jul-02 USATF East Region Championships 50-54 1:58.65 Nolan Shaheed: 1949-Jul-18 50 Eagle Rock, California: 2000-May-13 Jim Bush USATF Southern California Championships 55-59 2:03.75 Anselm LeBourne 1959-Apr-20 56 Beijing, China 2015-Aug-29 2015 World Championships in Athletics: 60-64 2:08.56
In the 1920s, the novelist and engineer Nevil Shute Norway (he called his autobiography Slide Rule) was Chief Calculator on the design of the British R100 airship for Vickers Ltd. from 1924. The stress calculations for each transverse frame required computations by a pair of calculators (people) using Fuller's cylindrical slide rules for two or ...
The Arithmometer, invented in 1820 as a four-operation mechanical calculator, was released to production in 1851 as an adding machine and became the first commercially successful unit; forty years later, by 1890, about 2,500 arithmometers had been sold [16] plus a few hundreds more from two arithmometer clone makers (Burkhardt, Germany, 1878 ...
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