1.-Who is C inventor of the radio?-Guglielmo Marconi. A.a B.an C. the2. Mr. Brown has Ceight-year-old daughter. She is really beautiful. A.a B. the C.an3. Have you been to C Great Wall before? It is the largest man-made object in the world. A.a B.an C. the D./4...
The crystal detectorCrystal radio receiverPopov A.S. is the inventor of the first-ever crystal detector and a crystal radio receiver.Victor M. PESTRIKOVInternational Conference Devoted to the Anniversary of Alexander PopovPestrikov, V. M., "A. S. Popov -- The inventor of a first crystal ...
Marconi, an Italian inventor,who gave us the radio,probably didn’t know how much his great invention would have done for the world in the years to come.Radio has perhaps done as much as any other communication tool.Things of the world can be reported to people everywhere a few seconds ...
D Marconi, an Italian inventor, who gave us the radio, probably didn't know how much his great invention would have done for the world in the years to come. Radio has perhaps done as much as any other communication tool. Things of the world can be reported to people everywhere a few ...
10. Hill, codebreaker Alan Turing and Christopher Cockerell, inventor of the hovercraft. 希尔,译码专家阿兰。德宁,气垫船发明者克里斯多夫。科克雷尔。 11. inventor的近义词 11. One man who is impressed with the idea is Travor Baylis, inventor of the clockwork radio. ...
Electricity and batteries are expensive and hard to 【5】 in some parts of Africa, so he developed a clever radio that works 【6】 batteries or electricity. The clockwork or windup radio, first made in South Africa in the 1990s, 【7】 the 【8】 of many African people. 【9】 in ...
which was what prompted Armstrong to investigate the problem in the first place. He conducted his experiments in the basement of Columbia University's Philosophy Hall. In 1933, Armstrong received U.S. patent 1,342,885 for a "Method of Receiving High-Frequency Oscillations Radio" for his FM te...
to produce (something, such as a useful device or process) for the first time through the use of the imagination or of ingenious thinking and experiment to devise by thinking : fabricate archaic find, discover inventor同义词 n. [专利]发明家;发明人;创造者 ...
Marconi, an Italian inventor, who gave us the radio, probably didn't know how much his great invention would have done for the world in the years to come.Radio has perhaps done as much as any other communication tool Things of the world can be reported to people everywhere a few seconds...
Radio stations in Switzerland were his first customers.The bigger breakthrough came seven years later, when Mr. Kudelski introduced a high-quality tape recorder that could synchronize sound with the frames on a reel of film. Mr. Kudelski’s 1958 recorder, [the Nagra III](O网页链接 weighed ...