首页
登录
职称英语
What does a sundial measure according to the passage? [br] [originaltext] Hu
What does a sundial measure according to the passage? [br] [originaltext] Hu
游客
2024-10-19
50
管理
问题
What does a sundial measure according to the passage? [br]
Humans have used may devices to measure time. The sundial was one of the earliest and simplest. A sundial measures the movement of the sun across the sky each day.
The sundial worked well only when the sun was shining. So other ways of measuring the passing of time were invented. One device was the hourglass. It used a thin stram of falling sand to measure time.
By the 1700s, people had developed mechanical clocks and watches. And today many of our clocks and watches are electronic.
So we have devices to mark the passing of time. But what time is it now? Clocks in different parts of the world do not show the same time at the same time. As international communications and travel grew, it became clear we needed a way to establish a common time for all parts of the world.
In 1884, an international conference divided the world into 24 time areas, or zones. Each zone represents one hour. The astronomical observatory in Greenwich, England, was chosen as the starting point for the time zone.
Most people have no trouble agreeing that time moves forward. Some scientists believe there is one reason why time only moves forward. It is a will-known scientific law: the second law of thermodynamics. The law says disorder increases with time.
选项
A、In 1770.
B、In 1880.
C、In 1884.
D、In 1894.
答案
C
解析
在1884年的国际会议上划出了24个时区。
转载请注明原文地址:https://tihaiku.com/zcyy/3807384.html
相关试题推荐
Withterminsurancepolicy,thecustomerwill[br][originaltext]M:MayIbuya
Withterminsurancepolicy,thecustomerwill[originaltext]M:MayIbuyalife
Listentothefollowingpassage.Altogetherthepassagewillbereadtoyou
WhyistheweightlossplancalledtheScarsdalediet?[br][originaltext]T
Whatchangehasbeenannounced?[br][originaltext]Passengersofflight17
Whatchangehasbeenannounced?[br][originaltext]Passengersofflight17
Whatdoesasundialmeasureaccordingtothepassage?[br][originaltext]Hu
Whatdoesasundialmeasureaccordingtothepassage?[originaltext]Humansh
Whatisthenameofthegirlbeinginterviewed?[br][originaltext]M:Today,I
Whatisthenameofthegirlbeinginterviewed?[originaltext]M:Today,Iamint
随机试题
WhatlanguagedoesLindaprobablyspeak?[br][originaltext]M:WhereisLindaf
Paintinghasbeencontinuouslypracticedbyhumansforsome20,000years.T
商标局寄发的《关于提供注册商标使用证据的通知》如果无法投递被邮局退回,商标局则在
下颌下三角的内容不包括A.面静脉 B.下颌下腺 C.面动脉 D.面神经颈支
投保人就同一保险标的、同一保险利益、相同保险风险、相同保险期间分别与两个或两个以
某苯胺生产企业对技术改造问题进行技术可行性分析。目前企业投产一条生产线,年生产苯
人在每一瞬间,将心理活动选择了某些对象而忽略了另一些对象。这一特点指的是注意的(
男性,50岁。气短20年,2年来常有胸骨后疼痛,胸骨右缘第2肋间可闻及3/6级收
患者男,50岁。行6断根拔除术,术中断根突然消失,此时首先应做的是A.冲水吸根
女性,37岁。慢性腹泻2年,大便每天2~3次,常带少量的黏液,反复粪便致病菌培养
最新回复
(
0
)