Studioclassroom_20090302

Invention

communicate vi.
communicate with someone
eg: As the beginning of school, Mrs. Smith tried to communicate her goals to all of her students parents.
eg: We communicated with the locals by using our hands.
eg: With cell-phones we can communicate with people anytime, and anywhere.



telegraph n. 電報
eg: In World War I, soldiers sent messages back to their families using telegraphs.


communication n.
eg: Communication was lost between the airplane and the airpoart during the storm.
eg: Throughout the Internet has become an important tool of communication.
eg: Communication between Ted and his fater has been very difficult lately.
eg: Jack needs to improve his communication skills.

patent n. 專利
(The document gives you permission to sell something you invent/made.)
eg: This new drug is protected by a patent.
eg: receive a patent 得到專利
eg: file/apply a patent 申請專利
eg: After developing new technology, the company filed for a patent.


the 1840s
1840s are in the nineteen'th centory

AD0 to AD99

AD = Anno Domini 放在年份的前面 [ 西元(拉丁文) ]
BC = Before Christ 放在年份的後面


AD2009 西元2009年
100BC 西元前100年

the 21st century


copper n. 銅
eg: The famous chef used a large copper pot to boil the noodles.
eg: copper wire



The Telephon:
Past, Present and Future
The telephone has come a long way since its early days.


Imagine using smoke signals, carrier pigeons or riders on horseback to send an important message. Although those methods may sound strange, years ago people used them to communincate.Today, all a person has to do is pick up a telephone. The telephone was born in the 19th century. By 1840s, telegraphs were the main form of long-distance communication. But these machines were very slow. After years of work, Alexander Graham Bell received a patent for the telephone.

This happened on March 7, 1876, and three days later Bell made the world's first phone call. He sent his voice into the next room using copper wire and sound waves. His assistant heard a simple message: 'Watson, come here. I want you." Communication change forever.

A high price
Initially, telephone service was very expensive. In 1927 a three-minute call from New York to Lodon cost US$75! That would be equal to spending US$895 on the same phone call today





Alexander Graham Bell's inventive genius touched many areas of science. In addition to the telephone, Bell had patents for a metal detector, a phonograph, a device to local icebergs and another to detect minor hearing problems. Bell was also something of a prophet, foreseeing the difficulties industrial pollution would have on the environment, and so explored alternative energy sources, like solar power.