Whole view of the Time service Room : JJY Receivers, Clock Faces for Quartz Clocks : the stators of the phonic motors can be rotated to change the phase of time, Clock faces for Quartz Crystal clocks : having gears conversing mean time into sideral time, Electronic counter : counting time interval between successive pulses with the step of 0s00001, Beat Counter.

“Whole view of the Time service Room : JJY Receivers, Clock Faces for Quartz Clocks : the stators of the phonic motors can be rotated to change the phase of time, Clock faces for Quartz Crystal clocks : having gears conversing mean time into sideral time, Electronic counter : counting time interval between successive pulses with the step of 0s00001, Beat Counter.”, 1959-1960, Bibliothèque de l'Observatoire de Paris, inv.I.1653 (60). Consulté le 19 avr. 2024, https://bibnum.explore.psl.eu/s/psl/ark:/18469/1k01n

Notice

Date
1959-1960
Type
Photographie
Format
Tirage photographique noir et blanc, légendé sur du papier calque.
Sujet
Astronomie
Instrument scientifique
Source
Bibliothèque de l'Observatoire de Paris
inv.I.1653 (60)
FR751142302-Z008761
Relation
Détenteur des droits
Bibliothèque de l'Observatoire de Paris
Numérisation Paris Sciences et Lettres
Identifiant
ark:/18469/1k01n

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