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spoglio
POSSEDUTO
The adoption of standard time
Bartky, Ian R.
'In the 1870s scientific pursuits requiring simultaneous observations from scattered points became important, and those needs led to proposals for federal action in the early...
Anno: 1989
| Bartky, Ian R. |
| The adoption of standard time / Ian R. Bartky |
| In: Technology and culture Vol. 30 (1989), p. 25-56 |
spoglio
POSSEDUTO
| Bartky, Ian R. |
| Comment and response on The most reliable time / Ian R. Bartky, Carlene E. Stephens. |
| In: Technology and culture Vol. 32 (1991), p. 183-186 |
spoglio
POSSEDUTO
The first North American time ball
Bartky, Ian R.
Dick, Steven J.
The first time ball (a visual signal for rating chronometers) in North America was dropped after 1 April 1845 and before 1 September 1846
Anno: 1982
| Bartky, Ian R. |
| The first North American time ball / Ian R. Bartky, Steven J. Dick |
| In: Journal for the history of astronomy Vol. 13 (1982), p. 50-54 |
spoglio
POSSEDUTO
The first time balls
Bartky, Ian R.
Dick, Steven J.
Contents the first time ball (a visual signal for rating chronometers) was dropped at Portsmouth, England late in 1829
Anno: 1981
| Bartky, Ian R. |
| The first time balls / Ian R. Bartky, Steven J. Dick |
| In: Journal for the history of astronomy Vol. 12 (1981), p. 155-164 |