Thermometer

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Ingenium, 1991.0112.001
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OBJECT TYPE: MERCURY/MAXIMUM/FAHREN/UNMOUNTED/RADIATION/BLACK BULB
DATE: 1970
ARTIFACT NUMBER: 1991.0112.001

MANUFACTURER: Negretti & Zambra
MODEL: Unknown
LOCATION: London, England

More Information

General Information

Serial #: 170161
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: GLASS INNER & OUTER TUBES/ METAL PARTS/ MERCURY

Dimensions

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

Length: 38.0 cm
Width: 6.1 cm
Height: N/A
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: Negretti Zambra
Country: England
State/Province: Unknown
City: London

Context

Country: Canada
State/Province: Unknown
Period: Unknown
Canada: Unknown
Function: INSTRUMENT THAT MEASURES RADIANT HEAT OF SUN, USING BLACK PAINTED THERMOMETER PROTECTED FROM WIND BY GLASS JACKET.
Technical: IN 1864 NEGRETTI & ZAMBRA CLAIMED TO HAVE INVENTED A BLACK BULB SOLAR RADIATION THERMOMETER WITH AN EVACUATED GLASS JACKET. IN 1938 N & Z WERE STILL SELLING A DIFFERENT VERSION, WITH THE BULB & 1 INCH OF THE STRAIGHT STEM BLACKENED; THIS EXAMPLE IS OF THIS TYPE. PROBLEMS WITH MAINTAINING THE VACUUM & STANDARDIZATION OF THIS TYPE OF THERMOMETER LED TO ITS GRADUAL ABANDONMENT.
Area Notes: Unknown

Details

Markings: BLACK LETTERING ON GLASS OF INNER TUBE READS IN SCRIPT 'Negretti & Zambra's Patent, London 170167' & 'KO14', with scale calibrated for 10 to 200.
Missing: From CA of 12/24/1993 by Tony Missio: No - Complete
Finish: COLOURLESS, TRANSPARENT GLASS WITHWHITE BACKED INNER TUBE/ SPHERICAL BLACK BULB ON INNER TUBE/ BLACK PAINTED METAL
Decoration: N/A

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

Negretti & Zambra, Thermometer, circa 1970, Artifact no. 1991.0112, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1991.0112.001/

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