久久亚洲国产成人影院-久久亚洲国产的中文-久久亚洲国产高清-久久亚洲国产精品-亚洲图片偷拍自拍-亚洲图色视频

您現在的位置: Language Tips> Easy English> Odd Question  
   
 





 
The history of the fax machine
The history of the fax machine
[ 2005-03-14 08:04 ]

   
  Fax Machine
   
  The history of the fax machine

The history of the fax machineMost people might think that the fax machine, found in many offices and homes, is a relatively new piece of technology. In fact, a patent for the fax machine was issued in 1843, 33 years before the telephone! A Scottish clockmaker, Alexander Bain, invented this device in the same year that the first telegraph message was being sent across America.

Although Bain worked out the method, he never actually sent a fax transmission. It was not until 1865 that the first working fax machines and transmission service were set up. An Italian Abbotnamed Giovanni Caselli developed the " pantelegraph" which was used to send pictures and writing between French cities.

The way that a fax machine works is quite straightforward. A sensorscans horizontally across the sheet one line at a time - like your eyes when you're reading a book. If the sensor sees a white patch it records a 0, and if it sees a dark patch it records a 1. In this way the whole page is "digitised" into a string of 0s and 1s. A modemturns this into a series of high or low pitched sounds that are sent down the phone line to a remote receiver. At the other end, the sounds are turned back into 0s and 1s. These are printed onto a piece of paper as light or dark dots, and so the original picture is reproduced hundreds of miles away.

For the very first fax machines, the pictures had to be printed onto tin foilwith non-conducting ink. An electrodescanned across the surface and sensed a light or dark patch depending on the current that flowed. The transmitting and receiving machines had drums that spun at the same speed, and every revolution clicked 0.5mm to the left so that eventually the whole picture was scanned. These machines took about half an hour to send a 20cm x 15cm photograph.

But faxes didn't really take off until the 20th century. In 1902 Dr Arthur Korn developed a fax machine with an optical scannerthat allowed plain paper images to be sent. This is basically the same design used today, with the received image being printed on heat-sensitive paper. Nowadays a photojournalist can send a high-resolution pictureto his newspaper headquarters in less than a minute.

 

note:

 

 

 

 

 


Abbot: 修道士
pantelegraph: (早期的)傳真電報


sensor: 傳感器



modem: 調制解調器

receiver: 接收器

 

tin foil: 錫紙
electrode: 電極

 

 

 

optical scanner: 光電掃描儀

heat-sensitive paper: 熱敏感紙
high-resolution picture: 高解析度照片

中國日報網英語點津版權說明:凡注明來源為“中國日報網英語點津:XXX(署名)”的原創作品,除與中國日報網簽署英語點津內容授權協議的網站外,其他任何網站或單位未經允許不得非法盜鏈、轉載和使用,違者必究。如需使用,請與010-84883631聯系;凡本網注明“來源:XXX(非英語點津)”的作品,均轉載自其它媒體,目的在于傳播更多信息,其他媒體如需轉載,請與稿件來源方聯系,如產生任何問題與本網無關;本網所發布的歌曲、電影片段,版權歸原作者所有,僅供學習與研究,如果侵權,請提供版權證明,以便盡快刪除。
相關文章 Related Story
 
 
 
本頻道最新推薦
 
“蝸婚”英文怎么表達
“一生一世”的表白
倫敦新型雙層巴士設計驚艷亮相
各種“支付形式”的英文表達
Alice in wonderland《愛麗絲漫游仙境》精講之六
翻吧推薦
 
論壇熱貼
 
關于工資的英語詞匯大全
關于職業裝的英語詞匯
余光中《尺素寸心》(節選)譯
中國譯協中譯英最新發布各類專業術語直譯
功夫熊貓經典臺詞雙語

 

主站蜘蛛池模板: 亚洲日韩中文字幕在线播放 | 精品特级一级毛片免费观看 | 日本一级特黄高清ab片 | 成人免费一级片 | 日韩精品一区二区三区中文字幕 | 二区久久国产乱子伦免费精品 | 日本人成在线视频免费播放 | 国产精品亚洲欧美日韩区 | 欧美另类视频一区二区三区 | 伊人成人在线 | 国产亚洲精品久久精品6 | 欧美一级二级三级视频 | 国产精品黄页网站在线播放免费 | 娇小性色xxxxx中文 | 欧美在线观看高清一二三区 | 日韩高清在线不卡 | 玖玖爱精品 | 国产三级日本三级日产三 | 欧美多人三级级视频播放 | 九九热精 | 黄毛片一级毛片 | 亚洲成a人片在线观看 欧美 | 欧洲美女与男人做爰 | 久久免费视频精品 | 国产精品分类视频分类一区 | 欧美一级片a | 亚洲国产日产韩国欧美综合 | 看全色黄大色黄大片毛片 | 国产精品亚洲高清一区二区 | 久久综合日韩亚洲精品色 | 国产亚洲人成在线影院 | 萌白酱粉嫩jk福利视频在线观看 | 2021最新国产精品一区 | 精品久久久久久久久久中文字幕 | 日本美女福利视频 | 99精品视频在线观看 | 一区二区三区中文国产亚洲 | 免费国产成人 | 国产男女爽爽爽免费视频 | 男人的天堂精品国产一区 | 午夜宅宅宅影院在线观看 |