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 seco...
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. ...
一解析 1.左边文字第一行:a British inventor得出答案 2.左边文字第四行:a radio could help...可得出答案 3.左边文字第十行:first made in可得出答案 4.左边文字第十一行:in the1990s.即可得到答案 5.右边文字第四行:not only.即可得到答案 反馈 收藏 ...
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...
technology. He was a consulting engineer, physicist, and inventor, known as the father of the radio navigation system due to his contributions to aircraft, torpedo boats, and guided missiles. VietnamNet reported his role in pioneering many fields, including the development of the first powered ...
由文章此句可知答案.probably didn't know how much his great invention would have done for the world in the years to come. (3).【答案】c 【解析】 此题问Marconi来自哪儿?由文章此句可知答案.Marconi, an Italian inventor, who gave us the radio, probably didn't know how much his great ...
especially in order to trick people<What excuse did he invent this time? / Many children invent an imaginary friend.> 2 discover发现→to discover something means to be the first person to find it or to know that it exists<Scientists have discovered a new type of bacteria[细菌].> ...
so he developed a clever radio that works without batteries or electricity.The clockword or wind-up radio,first made in South Africa in 1994,changed the lives of many African people.Even in tiny villages which had no electricity,or forms of communication,people began to listen to the radio,...
Nocera's invention can turn the energy of sunlight into a chemical fuel. But making it cheap and practical remains a hurdle.