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bn:00077272n
Noun Concept
Categories: Time balls, Horology, Navigational equipment
EN
time-ball  time ball
EN
A ball that slides down a staff to show a fixed time; especially at an observatory WordNet 3.0
Definitions
Relations
Sources
EN
A ball that slides down a staff to show a fixed time; especially at an observatory WordNet 3.0 & Open English WordNet
A time ball or timeball is a time-signalling device. Wikipedia
Time-signalling device Wikidata
A large wooden or metal ball that drops at a predetermined time to enable sailors to check their marine chronometers from their boats offshore. Wiktionary
IS A
ball
appliance
PART OF
timepiece
HAS INSTANCE
Lyttelton Timeball Station
Times Square Ball
USE
time signal
WordNet 3.0 & Open English WordNet
EN
time-ball
Wikipedia
EN
time ball
Wikidata
EN
time ball
Wiktionary
EN
time ball
Wikipedia Redirections
EN
time-ball, Time Ball, time balls, Timeball Station, Timeball station, timeball tower

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