Attēls:Guglielmo_Marconi_1901_wireless_signal.jpg
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Sākotnējais fails (3 000 × 1 849 pikseļi, faila izmērs: 1,06 MB, MIME tips: image/jpeg)
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Kopsavilkums
AprakstsGuglielmo Marconi 1901 wireless signal.jpg |
English: Electrical engineer/inventor Guglielmo Marconi with the spark-gap transmitter (right) and coherer receiver (left) he used in some of his first long distance radiotelegraphy transmissions during the 1890s.
Español: El ingeniero eléctrico e inventor Guglielmo Marconi operando un aparato similar al usado por él para transmitir la primera señal no cableada a través del Atlántico. |
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Autors | Published on LIFE | |||
Atļauja: (Šī faila izmantošana citur) |
Published anonymously in UK. | |||
Citas versijas | File:Airwaves.jpg |
Licence
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Public domainPublic domainfalsefalse |
This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.
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Šajā failā attēlotais
attēlo
1901
image/jpeg
Faila hronoloģija
Uzklikšķini uz datums/laiks kolonnā esošās saites, lai apskatītos, kā šis fails izskatījās tad.
Datums/Laiks | Attēls | Izmēri | Dalībnieks | Komentārs | |
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tagadējais | 2019. gada 13. aprīlis, plkst. 23.33 | 3 000 × 1 849 (1,06 MB) | Alex Microbe | Higher Resolution | |
2009. gada 24. maijs, plkst. 23.47 | 600 × 379 (33 KB) | Lobo | == Sumario == {{Information |Description={{en|1=Electrical engineer/inventor Guglielmo Marconi operating apparatus similar to that used by him to transmit first wireless signal across Atlantic.}} {{es|1=El ingeniero eléctrico e in |
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- Elettra (nave 1904)
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