Time standardisation apparatus, 1913

Time standardisation apparatus, 1913

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Caption: Time standardisation apparatus. This apparatus, which operated in the Paris Observatory from 31 July 1913, was invented by the French engineer Edouard Belin (1876-1963). It emitted a regularly interrupted radio signal to enable accurate synchronisation of times around the world. This work was done by the Bureau International de l'Heure (International Time Bureau), established at the Paris Observatory following an international conference in October 1912. Photograph published in 'La Telegraphie Sans Fil' (Wireless Telegraphy, 1914), by the French geophysicist Alphonse Berget (1860-1934).

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