three athletic events that use the si system of measurement
Stopwatch Digital electronic stopwatches are available which, due to their crystal oscillator timing element, are much more accurate than mechanical timepieces. Because they contain a microchip, they often include date and time-of-day functions as well. Some may have a connector for external sensors, allowing the stopwatch to be triggered by external events, thus measuring elapsed time far more accurately than is possible by pressing the buttons with one's finger. Stopwatches that count by 1/100 of a second are commonly mistaken as counting milliseconds, rather than centiseconds. The first digital timer used in organized sports was the Digitimer, developed by Cox Electronic Systems, Inc. of Salt Lake City Utah (1971)[1]. It utilized a Nixie-tube readout and provided a resolution of 1/1000 second. Its first use was in ski racing but was later used by the World University Games in Moscow, Russia, the U.S. NCAA, and in the Olympic trials.
Shooting sports French pistol champion and founder of the modern Olympics, Pierre de Coubertin, participated in many of these early competitions. This fact certainly contributed to the inclusion of five shooting events in the 1896 Olympics. Over the years, the events have been changed a number of times in order to keep up with technology and social standards. the targets that formerly resembled humans or animals in their shape and size have are now a circular shape in order to avoid associating the sport with any form of violence. At the same time, some events have been dropped and new ones have been added. The 2004 Olympics featured three shooting disciplines (rifle, pistol, and shotgun) where athletes competed for 51 medals in 10 men's and 7 women's eventsâ€”slightly fewer than the previous Olympic schedule.[9]