Hygrograph
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1987.0583.001
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- OBJECT TYPE
- HYGROSCOPIC/HAIR
- DATE
- Unknown
- ARTIFACT NUMBER
- 1987.0583.001
- MANUFACTURER
- Negretti & Zambra
- MODEL
- Unknown
- LOCATION
- London, England
More Information
General Information
- Serial #
- R/36509
- Part Number
- 1
- Total Parts
- 1
- AKA
- N/A
- Patents
- N/A
- General Description
- CAST IRON BASE/ METAL CASING WITH GLASS WINDOW/ METAL PARTS/ HUMAN HAIR
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 27.2 cm
- Width
- 13.5 cm
- Height
- 33.6 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Meteorology
- Category
- Atmospheric humidity measurement
- Sub-Category
- N/A
Manufacturer
- AKA
- Negretti Zambra
- Country
- England
- State/Province
- Unknown
- City
- London
Context
- Country
- Canada
- State/Province
- Unknown
- Period
- Unknown
- Canada
-
A BRITISH MADE HYGROGRAPH OF A TYPE USED BY THE CANADIAN METEOROLOGICAL SERVICE. - Function
-
USED TO MEASURE AND RECORD THE RELATIVE HUMIDITY OF THE AIR BY MEASURING THE CHANGE IN THE LENGTH OF A BUNDLE OF HUMAN HAIR AS IT ABSORBS WATER VAPOUR. - Technical
-
NEGRETTI & ZAMBRA'S 1938 CATALOGUE & MIDDLETON'S 1941 BOOK ILLUSTRATE A N & Z HYGROGRAPH VERY SIMILAR TO THIS ONE, EXCEPT WITH 4 OPENINGS IN THE HAIRBUNDLE PROTECTOR TUBE RATHER THAN 2. N & Z HYGROGRAPHS WERE USED AT CANADIAN INTERNATIONAL POLAR YEAR STATIONS IN 1932-1933 & IN CANADIAN OBSERVING STATIONS IN THE 1950'S & 1960'S. - Area Notes
-
Unknown
Details
- Markings
- Interior plate reading 'HYGROGRAPH/SERIAL NO. R/36509/RANGE 10/100%/ CHART NO. H/W/1750/X/MADE IN ENGLAND'/exterior plate reading 'NEGRETTI & ZAMBRA/TRADEMARK/LONDON'.
- Missing
- N/A
- Finish
- BLACK ENAMEL PAINTED CASING/ METALLIC PARTS/ PLATED HANDLE
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Negretti & Zambra, Hygrograph, Unknown Date, Artifact no. 1987.0583, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1987.0583.001/
FEEDBACK
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