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The original time ball systems incorporated two separate balls on a single mast – https://v.gd/j1s9J4 link one fixed at its highest https://v.gd/C953Pt link point, and a mobile one positioned at the bottom. Five minutes before the hour, the lower ball would be raised by rope https://zzb.bz/1x26oe link until it was touching the top ball. On the hour, the bottom ball would slowly begin to move downward and the ship captains would set their chronometers. https://toolbarqueries.google.at/url?q=https://is.gd/D1qge3 https://cse.google.ee/url?q=https://is.gd/nynZwE https://zzb.bz/NhTJ3X https://zzb.bz/IFqsl4 https://is.gd/W4VhHI https://www.metooo.es/u/68ae7e427f46cd770c74f52b
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