Bulb

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Ingenium, 1966.0716.001
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OBJECT TYPE: WEIGHTED GLASS
DATE: 1980
ARTIFACT NUMBER: 1966.0716.001

MANUFACTURER: Unknown
MODEL: Unknown
LOCATION: Unknown

More Information

General Information

Serial #: N/A
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: Glass bulb contains quantity of mercury.

Dimensions

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

Length: 8.5 cm
Width: 8.5 cm
Height: 10.0 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Physics
Category: Hydrostatics & fluid mechanics
Sub-Category: N/A

Manufacturer

AKA: Unknown
Country: Unknown
State/Province: Unknown
City: Unknown

Context

Country: North America
State/Province: Unknown
Period: This type of device used in 19th c. +. specific period of use for this example not known.
Canada: Used in school or university intro physics labs to determine or demonstrate the coefficient of expansion of a liquid or the variation of density with temperature. Reliance on Archimedes' principle is also implicitly assumed. Specific use of this device not known. Lead or other metal may be substituted for the mercury.
Function: Used to determine or demonstrate the coefficient of expansion of a liquid, or the variation of density with temperature. Designed to float but as temperature of water drops, the bulb begins to sink.
Technical: Variation on various floating bubble apparatus used to determine the properties of liquids (in this case water). "Galilean thermometer" with floating bubbles uses a similar principle, but with bubbles weighted to respond to slightly different temperatures. Technology related to hydrostatic bubbles & various hydrometers.
Area Notes: Unknown

Details

Markings: " C " etched on bulb surface.
Missing: NONE. From CA of 11/13/2001 by Matthew Bruce: No - Appears complete
Finish: Clear glass bulb
Decoration: N/A

CITE THIS OBJECT

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

Unknown Manufacturer, Bulb, before 1980, Artifact no. 1966.0716, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1966.0716.001/

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