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
2023-10-21
57
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] 【D3】
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
more elaborate devices
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3116657.html
相关试题推荐
Westillcouldn’thearProfessorWangclearlyatthebusinesslecture,soweall
Icebergsareafavoritesubjectforphotographersbecauseof______producedbyth
______arosethetwogreatdivisionsofthisscienceknownasinorganicchemistry
Thesubjectofthislectureishorology,thescienceofmeasuringtime.The【
Thesubjectofthislectureishorology,thescienceofmeasuringtime.The【
Thesubjectofthislectureishorology,thescienceofmeasuringtime.The【
Thesubjectofthislectureishorology,thescienceofmeasuringtime.The【
InEnglandandWalesthesubjectstaughtinschoolare______bytheNationalCurr
InEnglandandWalesthesubjectstaughtinschoolare______bytheNationalCurr
—Sodoyouhaveacoursecalled"teamwork"?—It’snotatimetabledsubject,
随机试题
IshouldstartbysayingasclearlyasIcanthatIloveantibiotics.Recent
(2015年)下列关于杠杆收购方式的表述中,正确的是( )。A.必须保证较高比
A.寒疝腹痛 B.厥阴头痛 C.风湿痹痛 D.脘腹冷痛 E.虫积腹痛小茴
上述哪个方剂主治水逆证A.五苓散B.猪苓汤C.五皮散D.苓桂术甘汤E.防己黄芪汤
电容器允许在()5%波动范围内长期运行。电压$;$电流$;$额定电压$;$额定
某些幼儿园班中把班里每个孩子的体检结果公布在教室门口,结果不但包含身高、体重等项
小雅是幼儿园小班的学生,聪明好动,学习习惯差,经常不完成家庭作业,编一些谎话骗老
上世纪70年代末,中国实行严厉的计划生育政策,每对夫妻只能生育一个孩子。计划生育
银行承兑汇票的承兑银行,应当按照票面金额向出票人收取()的手续费。A:千分之一
下列关于抑制性突触后电位的叙述,正确的是A.是局部除极化电位 B.具有"全或无
最新回复
(
0
)