首页
登录
职称英语
The subject of this lecture is horology, the science of measuring time. The【
The subject of this lecture is horology, the science of measuring time. The【
游客
2024-08-22
49
管理
问题
The subject of this lecture is horology, the science of measuring time. The【D1】______has come a long way since ancient times. It began with such devices as the sundial, where the position of the sun’s shadow marked the hour. Daylight was divided into 12【D2】______, which were longer in the summer and shorter in the winter, simply because the amount of daylight changes with the seasons.
The earliest sundial we know comes from Egypt, which was made of stone. Sundials were used through the classical world, and with time, evolved into【D3】______that could take into account seasonal changes and【D4】______and reflect the hours accurately. This was quite an achievement in technology. Today, sundials can be seen as【D5】______in many gardens
In the 11th century, the Chinese invented the first mechanical clocks. They were large and expensive, and certainly not【D6】______. However, this is the type of clocks we are familiar with today. There have been many developments in clocks and watches since then, and they’ve been greatly improved. However, if your clock or watch makes a【D7】______sound, then it could well be based on the mechanical movements the Chinese developed a thousand years ago!
However, timekeeping has moved on from the mechanical clock. Time has become so important that there is a series of atomic clocks around the world which measure International Atomic Time. Even though many countries have their own calendars,【D8】______ has made it essential that we measure time【D9】______. This standard was set in 1958. Now these atomic clocks are【D10】______over 70 laboratories all over the world. [br] 【D7】
The subject of this lecture is horology, the science of measuring time. The measurement of time has come a long way since ancient times. It began with such devices as the sundial, where the position of the sun’s shadow marked the hour. Daylight was divided into 12 temporary hours, which were longer in the summer and shorter in the winter, simply because the amount of daylight changes with the seasons.
The earliest sundial we know comes from Egypt, which was made of stone. Sundials were used through the classical world, and with time, evolved into more elaborate devices that could take into account seasonal changes and geographical positioning and reflect the hours accurately. This was quite an achievement in technology. Today, sundials can be seen as decorative pieces in many gardens.
In the 11th century, the Chinese invented the first mechanical clocks. They were large and expensive, and certainly not intended for individuals. However, this is the type of clocks we are familiar with today. There have been many developments in clocks and watches since then, and they’ve been greatly improved. However, if your clock or watch makes a ticking sound, then it could well be based on the mechanical movements the Chinese developed a thousand years ago!
However, timekeeping has moved on from the mechanical clock. Time has become so important that there is a series of atomic clocks around the world which measure International Atomic Time. Even though many countries have their own calendars, globalization has made it essential that we measure time uniformly. This standard was set in 1958. Now these atomic clocks are situated in over 70 laboratories all over the world.
选项
答案
ticking
解析
转载请注明原文地址:http://tihaiku.com/zcyy/3731231.html
相关试题推荐
Thesubjectofthislectureishorology,thescienceofmeasuringtime.The【
Thesubjectofthislectureishorology,thescienceofmeasuringtime.The【
Thesubjectofthislectureishorology,thescienceofmeasuringtime.The【
InEnglandandWalesthesubjectstaughtinschoolare______bytheNationalCurr
—Sodoyouhaveacoursecalled"teamwork"?—It’snotatimetabledsubject,
Usingrecentdevelopmentsinscienceandtechnology,mancanmakevariousflower
Usingrecentdevelopmentsinscienceandtechnology,mancanmakevariousflower
Ayoungpeople’smagazineispreparingaspecialissueonthesubjectofhealth.
TheGlobalEconomyOfallthesciences,onlytwoare
TheGlobalEconomyOfallthesciences,onlytwoare
随机试题
ToMyDearandLovingHusbandisapoemby______whopublishedtheveryfirstcol
顶级的first-class;top
[originaltext]Somekindsofmentalskillsnaturallydecreaseaspeopleget
StatisticsfromChina(1)bemindboggling:1.2billion(2),1.73trillion
钢筋焊接接头抗拉试验说法正确的是( )。A.3个热轧钢筋接头试件抗拉强度均小于
古希腊原子认者认为,“原子”是世界的唯一本原。()
“平行教育原则”体现的德育原则是( )A.严格要求学生与尊重信任学生相结合原则
《幼儿园教育指导纲要(试行)》指出:教师的态度和()应有助于形成安全、温馨的心
宏观经济指标可分为()。A:先行性指标 B:同步性指标 C:滞后性指标 D
全口义齿初戴时,用双手交替加压检查时,发现上颌义齿左右翘动。最常见原因是A.义齿
最新回复
(
0
)