与 «TELEGRAFONE»相关的葡萄牙语书籍
在以下的参考文献中发现
telegrafone的用法。与
telegrafone相关的书籍以及同一来源的简短摘要提供其在 葡萄牙语文献中的使用情境。
1
Enciclopedia Basica Da Midia Eletronica
Foi o engenheiro dinamarquês Valdemar Poulsen quem primeiro demonstrou,
em 1900, o principio da gravação magnética. Seu invento, chamado telegrafone,
gravava magneticamente a voz num condutor metálico. Nos anos seguintes, nos
...
2
On video: o significado do vídeo nos meios de comunicação
A fita de som Embora a gravação em fita tenha sido introduzida comercialmente
muito depois do gramofone, um primeiro sistema — o telegrafone — foi de fato
patenteado em 1898 por um engenheiro dinamarquês, Valdemar Poulsen, que ...
ROY ARMES, George Schlesinger, Roy Armes, 1999
Telegrafone In 1898 Valdemar Poulsen investigated the possibility of
magnetizing limited areas of a steel element which was sufficiently hard to
prevent the magnetization from spreading to its ends. For this purpose he took a
steel plate and ...
4
The Journal of the British Institution of Radio Engineers
Telegrafone In 1898 Valdemar Poulsen investigated the possibility of
magnetizing limited areas of a steel element which was sufficiently hard to
prevent the magnetization from spreading to its ends. For this purpose he took a
steel plate and ...
5
Electronic Motion Pictures: A History of the Television Camera
Likewise in 1899 the Danish physicist Valdemar Poulsen produced and patented
his Telegrafone. This was a machine that recorded sound magnetically. Poulsen
was able to give practical demonstrations of his apparatus in which he used a ...
6
Dynamics of Political Development in Afghanistan: The ...
The Soviet news agency Telegrafone Agentsvo Sovietskogo Soyuza (TASS)
provided material to Afghan news agencies. In contrast to the United States,
students who completed their advanced education in the Soviet Union tended to
return ...
7
Journal of the Society of Motion Picture and Television ...
Most people are familiar with the Telegrafone, the name which Poulsen gave to
his magnetic sound recorder and reproducer, in which a steel wire was run past a
magnetic head to which signals were fed and thereby recorded on the wire, the ...
MOST PEOPLE are familiar with the Telegrafone, the name which Poulsen gave
to his magnetic sound recorder and reproducer, in which a steel wire was run
past a magnetic head to which signals were fed and thereby recorded on the wire
, ...
Society of Motion Picture and Television Engineers, 1950
9
Journal of the American Medical Association
Actual sound records can be made on the telegrafone, a form of electric
phonograph. Fig. 6. — Oscillograph. CLINICAL APPLICATION The tremendous
clinical importance of this electro- physical advance now becomes evident.
Williams, in ...
10
JAMA: The Journal of the American Medical Association
Actual sound records can be made on the telegrafone, a form of electric
phonograph. Fig. 6.—Oseillngraph. CLINICAL APPLICATION The tremendous
clinical importance of this electrophysical advance now becomes evident.
Williams, in ...
