您現(xiàn)在的位置: > Language Tips > Olympics  
 





 
New technologies for sport equipment
[ 2006-12-21 14:52 ]

撐桿最初是用緊密木材——可能是山胡桃樹做成的,1896年雅典奧運(yùn)會上,有人用竹子撐桿創(chuàng)造了10英尺6英寸的記錄。1942到1957年間,嘗試了鋁質(zhì)、鋼質(zhì)以及玻璃纖維的撐桿,最后以玻璃纖維的勝出而告終。

Pole Vault: Poles were originally made out of solid wood, probably hickory. At the 1896 Olympics in Athens, a bamboo pole was used to set the vaulting record of 10 feet 6 inches. Between 1942 and 1957, aluminum, steel, and fiberglass poles were tried. Fiberglass won out, increasing the indoor record height to 20 feet 2 inches in 1993.

1948年倫敦奧運(yùn)會上木質(zhì)的起跑架代替了腳趾槽。在古希臘,跑步選手以立姿起跑,如果起跑過早會遭鞭打。而現(xiàn)代金屬起跑架內(nèi)置了微型控制器,防止運(yùn)動員起跑過早。

Sprint: Wooden starting blocks replaced toe grooves at the 1948 London games. In ancient Greece, runners took off from a standing position and were flogged if they started too soon. Modern metal starting blocks contain micro-controllers to prevent false starts.

1972年奧運(yùn)會馬拉松賽的美國預(yù)選賽中運(yùn)動員穿的楔形后跟的跑鞋開創(chuàng)了現(xiàn)代跑鞋的新紀(jì)元。
Marathon: wedge-heeled Nike sneakers at 1972 US Olympic trials began the modern running-shoe ear.

公元前500年使用的細(xì)長的木質(zhì)標(biāo)槍中間纏有一層繩索,在投擲標(biāo)槍時,運(yùn)動員須抓住繩索的一端讓標(biāo)槍在空中自由旋轉(zhuǎn),這種旋轉(zhuǎn)可以使標(biāo)槍更穩(wěn)。1908年奧運(yùn)會上投擲最遠(yuǎn)的有50米,1976年增加到95米,1984年尤韋·洪在一次比賽中投出了104.80米的驚人成績。國際業(yè)余田徑聯(lián)合會很快決定重新設(shè)計標(biāo)槍,來限制其投擲距離。修改之后的標(biāo)槍重心往前移動了4厘米,此時標(biāo)槍能投擲的距離比修改前縮短了15米。

Javelin: The javelin was an event first enjoyed by the Mycenaeans at least 3000 year ago. The Greeks of 500 BC used thin wooden javelins with a cord wrapped around the centre of mass. When the javelin was thrown, the athlete would hold onto the end of the cord to make the javelin rotate freely through the air in much the same way that a toy gyroscope is made to rotate by pulling a string. The rotation stabilized the javelin by averaging any asymmetries in its construction about a central axis. At the London games in 1908 the winning throw was just over 50m. By 1976 this distance had increased to almost 95m and in non-Olympic event. The IAAF decided fairly quickly that the javelin had to be redesigned to underperform. According to Mont Hubbard of the University of California at Davis, the furthest distance a javelin could be thrown depended on how it was designed. When the rules were changed so that the centre of mass was moved 4cm forward, the total distance a javelin can travel is reduced 15m than they were before the rule change.


(Foreign and Domestic Olympic Stories)

 
 

 

 

 
 

48小時內(nèi)最熱門

     

本頻道最新推薦

     
  New technologies for sport equipment
  First athlete from Hawai'i to win an Olympic gold medal.
  A great American track and field athlete--Edwin Corley Moses
  Over 150,000 apply to be volunteers for 2008 Olympics
  Liu Qi meets with Grand Duke of Luxembourg






主站蜘蛛池模板: 国产精品视频一区二区三区经| 极品美女一级毛片免费| 日产国产欧美韩国在线| 四虎成人精品无码| jizz中国jizz欧洲/日韩在线 | 插插插综合视频| 免费的a级毛片| 97精品在线观看| 极品精品国产超清自在线观看| 午夜小视频免费| 97精品国产高清自在线看超| 日本vs黑人hd| 亚洲国产理论片在线播放| 麻豆亚洲av熟女国产一区二| 成人综合伊人五月婷久久| 亚洲三级在线播放| 男人扒开女人的腿做爽爽视频| 国产精品白丝av嫩草影院| 三上悠亚精品一区二区久久| 欧美野外疯狂做受xxxx高潮| 国产小视频在线观看www| 一级黄色免费毛片| 旧番拯救精灵森林第四集| 四虎1515hm免费国产| 91精品国产91久久久久久青草| 日韩欧美一区二区三区久久| 办公室震动揉弄求求你| 2022国产精品视频| 日韩欧美三级在线观看| 亚洲狼人综合网| 精品国产福利久久久| 国产精品久久久久久久久久久不卡| 久9re热这里精品首页| 激情图片在线视频| 四虎永久在线精品免费观看地址| 欧美激情videossex护士| 少妇无码av无码专区线| 亚洲中文字幕久久精品无码2021| 狠狠久久精品中文字幕无码| 国产叼嘿久久精品久久| www日本xxx|