Why swim there are many draws? Not timing accuracy is not enough-the Rio Olympics, swimming, timing-IT information

IT information news August 14 message, currently in about games of indoor swimming game has all end, believes concern game of users will found a interesting of phenomenon, that is in swimming game in the will more easy appeared draw, for example in this times of in about games men 100 meters Butterfly final in the, United States of Phelps, and South Africa of lekeluosi, and Hungary of Cech rare of to 51'14 tied silver, why will such does?

We know that if the timing precise enough, three wall time cannot be exactly the same as the current timing system is accurate to one out of 10,000 seconds, why Fina timed at 1% seconds, without increasing to 1 per thousand seconds?

In fact, they have done this before. In 1972, in the men's 400-meter Medley Relay finals, Sweden's Gunnar Larsson to 0.002 seconds to beat United States Tim McKee, the results made the authorities finally decided to get rid of a number of bits of precision, why do they do it?

Originally, in the Olympic swimming pool is 50 metres in length, measured in accordance with the current men's world record time, 1 per thousand seconds about 2.39 mm and Fina swimming pool size regulation allows error of 3 cm per lane, which is of 2.39 mm more than 10 times . This conclusion is clear, if the precision timing to 1 per thousand seconds, then, cannot be guaranteed absolute fairness, lane because the winner may have to 1 per thousand seconds shorter than the loser lane swimming across distances.

为何游泳比赛有很多平局？并非计时精度不够 - 里约奥运会,游泳,计时 - IT资讯

IT资讯讯 8月14日消息，目前里约奥运会的室内游泳比赛已经全部结束，相信关注比赛的网友会发现一个有趣的现象，那就是在游泳比赛中会更容易出现平局，例如在本次的里约奥运会男子100米蝶泳决赛中，美国的菲尔普斯、南非的勒克洛斯、匈牙利的切赫罕见的以51'14并列银牌，为什么会这样呢？

我们知道，如果计时足够精确，那么三个人的触壁时间绝对不可能完全一样，目前的计时系统都已经能够精确到百万分之一秒，为什么国际泳联的计时只到百分之一秒，而不增加到千分之一秒呢？

其实，他们之前就这样做过。在1972年，在男子400米混合泳决赛中，瑞典的Gunnar Larsson以0.002秒的优势击败了美国的Tim McKee，这个结果让管理机构最终决定去掉一个精度位数，他们为什么要这么做呢？

原来，在奥运会长度为50米的游泳池中，按照目前男子世界纪录的时间来算，千分之一秒大约移动2.39毫米，而国际泳联的游泳池尺寸规章中允许每个泳道有3厘米的误差，这是2.39毫米的10倍还多。这样结论就很明显了，如果以千分之一秒的精度计时的话，无法保证绝对的公平，因为胜者的泳道可能要比败者的泳道短千分之一秒游过的距离。