Clock
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Ingenium,
1974.0794.001
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- OBJECT TYPE
- SIDEREAL/ANALOGUE/WALL
- DATE
- 1960–1975
- ARTIFACT NUMBER
- 1974.0794.001
- MANUFACTURER
- HAINES
- MODEL
- Unknown
- LOCATION
- Englewood, New Jersey, United States of America
More Information
General Information
- Serial #
- N/A
- Part Number
- 1
- Total Parts
- 1
- AKA
- N/A
- Patents
- N/A
- General Description
- METAL (INCLUDING ALUMINUM & BRASS) & SYNTHETIC MATERIALS OF CONSTRUCTION.
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 18.5 cm
- Width
- 18.5 cm
- Height
- 9.5 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Horology
- Category
- Clocks
- Sub-Category
- N/A
Manufacturer
- AKA
- HAINES
- Country
- United States of America
- State/Province
- New Jersey
- City
- Englewood
Context
- Country
- Canada
- State/Province
- Ontario
- Period
- THIS CLOCK PRESUMABLY USED C. 1960S- C. 1975.
- Canada
-
USED IN DOMINION OBSERVATORY IN OTTAWA, ONT. - Function
-
MEASURES AND DISPLAYS SIDEREAL TIME, WHICH IS MEASURED IN RELATION TO THE STARS. - Technical
-
SIDEREAL CLOCKS ARE IDENTICAL TO STANDARD ANALOGUE CLOCKS EXCEPT THAT THE GEARING IS MODIFIED TO MAKE THEM RUN APPROX. 4 MINUTES FASTER PER 24-HOUR PERIOD. SIDERAL TIME IS THE TIME REQUIRED FOR THE EARTH TO ROTATE SO A STAR RETURNS TO THE SAME POINT IN THE SKY (APPROX.23 HOURS 56 MINUTES 11 SECONDS). ASTRONOMERS USE THE CLOCKS TO LOCATE OBJECTS IN THE NIGHT SKY, & TO KNOW WHERE CELESTIAL OBJECTS ARE DURING DAY. - Area Notes
-
Unknown
Details
- Markings
- "SIDERAL TIME" & "HAINES" marked in black on clock face. "DO NOT TURN SECONDS HAND" printed on decal applied to bracket.
- Missing
- UNKNOWN. SYNTHETIC COVER OVER CLOCK FACE MAY BE REPLACEMENT. BRACKET ADDED BY DO TECHNICAL STAFF TO MAKE CLOCK MORE EASILY READ. (REF. 1)
- Finish
- BRASS RIM SURROUNDS CLOCK FACE; REMAINDER OF CLOCK CASING PAINTED BLACK; WHITE DIAL FACE; BLACK ROMAN NUMERALS AND HANDS.
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
HAINES, Clock, between 1960–1975, Artifact no. 1974.0794, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1974.0794.001/
FEEDBACK
Submit a question or comment about this artifact.
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