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The Time Ball, Royal Observatory, Greenwich, Fig. 7,1844. Creator: Unknown.

The Time Ball, Royal Observatory, Greenwich, Fig. 7, 1844. 'The hour of one o'clock is announced by the descent of a large black ball, from the summit of a pole, which surmounts the northwestern turret of the Observatory; a position singularly favourable for its exhibition to mariners on their progress down the adjacent river Thames. The apparatus...may be said to consist of a hoist for raising the ball, a trigger and discharging gear for its liberation, and a clock, regulated by observation, for giving the required moment of time'. From "Illustrated London News", 1844, Vol V.
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Titel:
The Time Ball, Royal Observatory, Greenwich, Fig. 7,1844. Creator: Unknown.
Untertitel: Siehe automatische Übersetzung
The Time Ball, Royal Observatory, Greenwich, Fig. 7, 1844. 'The hour of one o'clock is announced by the descent of a large black ball, from the summit of a pole, which surmounts the northwestern turret of the Observatory; a position singularly favourable for its exhibition to mariners on their progress down the adjacent river Thames. The apparatus...may be said to consist of a hoist for raising the ball, a trigger and discharging gear for its liberation, and a clock, regulated by observation, for giving the required moment of time'. From "Illustrated London News", 1844, Vol V.
Technik/Material:
engraving
Bildnachweis:
Album / The Print Collector/Heritage Images
Freigaben (Releases):
Model: Nein - Eigentum: Nein
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Bildgröße:
4409 x 4960 px | 62.6 MB
Druckgröße:
37.3 x 42.0 cm | 14.7 x 16.5 in (300 dpi)
Schlüsselwörter: