27. 4. 1791
Charlstown |
Samuel Finley Breeze
Morse |
2. 4. 1872
|
22. 1. 1801
Osnabrück |
Clemens Friedrich
Gerke |
21. 5. 1888
Hamburg |
13. 6. 1831
Edinburgh |
James Clark Maxwell
|
5. 11. 1879
Cambrigde |
23. 10. 1844
Amiens |
Edouard Branly |
25. 3. 1940 |
6. 6. 1850
Fulda |
Karl Ferdinand Braun |
20. 4. 1918
Brooklyn USA |
18. 4. 1849
Berlin |
Adolf Karl Heinrich
Slaby |
6. 4. 19138
Berlin |
22. 2. 1857
Hamburg |
Heinrich Rudolf
Hertz |
1. 1. 1894
Bonn |
4. 3. 1859
Bogoslowsk |
Alexander
Popow |
31. 12. 1905
St. Petersburg |
|
27. 7. 1866 |
First transatlantic telegram between America and Europe by wire. |
|
2. 4. 1872
|
The father of telegraphy Samuel Finley Breeze Morse dies |
|
25. 4. 1874
Bologna |
Guglielmo Marcese
Marconi |
20. 7. 1937
Rom |
|
Befor 1884 |
Which person who handeld with electromagnetic waves and proofed
its existence for sure and for the first time is not known. By the
theories of the english physician Maxwell there was an
evidence of the existence of unvisible waves some years before.
|
|
Autum
1887 |
Hertz discovers the electromagnetic waves (Story)
|
(Source: Heinrich Hertz,
1957, H.Hertz Schule)
|
|
21. 5. 1888 |
The telegraph inspector of the optical and the electric telegraph Hamburg and
reformer of the Morse Code Friedrich Clemens Gerke dies at Hamburg |
|
1895
Italy |
The young Italian Guglielmo Marconi reanimated the radio waves.
His private teacher Prof. Riggi showed him the Hertz experiment and inspired Marconi to
his lifelong passion for wireless. Together with his brother they conducted experiments
on the vineyard of this wealthy father und cover distances of several hundrets of meters.
|
Marconis transmitter:
|
1898
Germany |
At about the same time the Colgne chocolate manufacturer Ludwig Stollwerck
become engaged in the wireless scene. He was presented some kind of radio circuits
and he was a man to invest in 'modern technology'. But before he would invest money
he asked for advice from the most experienced expert in physics, Prof. Ferdiand Braun
at Strassburg.
The papers handed to Stollwerck showed circuits very similar to the ones, Marconi used.
|
Prof. Braun
Source Dr. K. Stadtler
|
|
1899 |
Prof. Braun commences maritime experiments at Cuxhaven
(Story)
|
|
1899 Summer
24. 9.1900
|
From summer 1899 until autum 1900 Jonathan Zenneck took over the
responsibilty for the experiments at Cuxhaven.
On 24th September 1900 there was the first durable and constant wireless connection
betwen Heligoland and the Kugelbake at Cuxhaven over a distance of 64 Kilometers.
|
Jonathan Zenneck
Source(3) |
|
12. 12. 1901
|
First transatlantic transmission Poldhu - St. Johns, NF
Marconi, Kemp and Padget received Signal 'S' at Signal Hill.
|
|
|
10. 12. 1909
|
Physics Nobel Prize for F. Braun and G. Marconi
|
|
