Thermometer

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Ingenium, 1987.0509.003
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OBJECT TYPE: N/A
DATE: 1867
ARTIFACT NUMBER: 1987.0509.003

MANUFACTURER: Casella, L.
MODEL: Unknown
LOCATION: London, England

More Information

General Information

Serial #: N/A
Part Number: 3
Total Parts: 3
AKA: Thermometer set
Patents: N/A
General Description: Glass and mercury thermometers mounted on a wooden board with metal brackets, with synthetic scales.

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length: 61.0 cm
Width: 20.5 cm
Height: 3.5 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Meteorology
Category: Atmospheric temperature measurement
Sub-Category: N/A

Manufacturer

AKA: Casella
Country: England
State/Province: Unknown
City: London

Context

Country: Canada
State/Province: Ontario
Period: CA. 1867 TO 1930'S.
Canada: INSTRUMENT USED TO RECORD AIR TEMPERATURES AT CANADA'S FIRST METEOROLOGICAL OBSERVATORY, PROVIDING A CONTINUOUS PHOTOGRAPHIC RECORD OF TEMPERATURE CHANGES FOR RESEARCH PURPOSES RATHER THAN WEATHER PREDICTION.
Function: Thermometer used to measure temperature together with a thermograph.
Technical: LATER (C. 1867) FORM OF KEW PHOTOGRAPHIC THERMOGRAPH ORIGINALLY DEVELOPED IN 1840'S AFTER INVENTION OF PHOTOGRAPHY. IT CONSISTS OF 2 MERCURY THERMOMETERS WITH BULBS IN OUTDOOR SCREEN & REST OF TUBES INDOORS, WHERE SYSTEM OF LENSES MAGNIFIES & FOCUSES LIGHT OF FLAME WHICH ILLUMINATES THERMOMETER TUBES. THIS THERMOGRAPH WAS BUILT BETWEEN 1867 AND 1873. THE ROYAL SOCIETY IN LONDON PROPOSED THE BUILDING OF THREE TYPES OF RECORDING INSTRUMENT, INCLUDING THE PHOTOGRAPHIC THERMOGRAPH AND BAROGRAPH (1987.0510), FOR BRITISH OBSERVATORIES IN 1867 AND BY LATER THAT YEAR EXAMPLES OF THESE INSTRUMENTS WERE OPERATING AT KEW AND OTHER OBSERVATORIES (REFS. 1-2). IN 1873, THE CANADIAN THERMOGRAPH AND BAROGRAPH WERE AT THE KEW OBSERVATORY IN LONDON FOR VERIFICATION (REF. 3)
Area Notes: Unknown

Details

Markings: N/A
Missing: Unknown
Finish: Unknown
Decoration: N/A

CITE THIS OBJECT

If you choose to share our information about this collection object, please cite:

Casella, L., Thermometer, after 1867, Artifact no. 1987.0509, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1987.0509.003/

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