沉船中发现世上最早航海星盘

时间：2021-04-07 08:52:37

（单词翻译:单击）

一个从一艘沉船中挖掘出的史前器物可能是目前世上发现的最早用于导航的工具。海洋考古学家说这个物体是一个“星盘”，海员在航行中用它测量太阳的高度，以确定所在位置。这个星盘是在1503年在印度洋暴风雪期间沉没的一艘葡萄牙船舰中找到的。
 
The slim bronze disc was discovered during the excavation1 of the Esmeralda shipwreck2 – a Portuguese3 vessel4 that was exploring the Indian Ocean when it sank in a storm in 1503.
 
The object is decorated with a royal coat of arms, but laser scanning also revealed faint etchings around its edges, each separated by five degrees. It confirms that this is an astrolabe - an instrument used by mariners5 to measure the height of the sun above the horizon, enabling them to navigate6 the seas.
 
Only around one hundred of these items have been found, and this one most likely dates to the late fifteenth century, making it the earliest known example by several decades.

分享到：


点击收听单词发音收听单词发音  

1 excavation RiKzY     
n.挖掘，发掘；被挖掘之地
参考例句：
  • The bad weather has hung up the work of excavation.天气不好耽误了挖掘工作。
  • The excavation exposed some ancient ruins.这次挖掘暴露出一些古遗迹。
2 shipwreck eypwo     
n.船舶失事，海难
参考例句：
  • He walked away from the shipwreck.他船难中平安地脱险了。
  • The shipwreck was a harrowing experience.那次船难是一个惨痛的经历。
3 Portuguese alRzLs     
n.葡萄牙人；葡萄牙语
参考例句：
  • They styled their house in the Portuguese manner.他们仿照葡萄牙的风格设计自己的房子。
  • Her family is Portuguese in origin.她的家族是葡萄牙血统。
4 vessel 4L1zi     
n.船舶；容器，器皿；管，导管，血管
参考例句：
  • The vessel is fully loaded with cargo for Shanghai.这艘船满载货物驶往上海。
  • You should put the water into a vessel.你应该把水装入容器中。
5 mariners 70cffa70c802d5fc4932d9a87a68c2eb     
海员，水手（mariner的复数形式）
参考例句：
  • Mariners were also able to fix their latitude by using an instrument called astrolabe. 海员们还可使用星盘这种仪器确定纬度。
  • The ancient mariners traversed the sea. 古代的海员漂洋过海。
6 navigate 4Gyxu     
v.航行，飞行；导航，领航
参考例句：
  • He was the first man to navigate the Atlantic by air.他是第一个飞越大西洋的人。
  • Such boats can navigate on the Nile.这种船可以在尼罗河上航行。

©2005-2010英文阅读网