Bob, nadir

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Ingenium, 1996.0179.001
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OBJECT TYPE
N/A
DATE
1935–1960
ARTIFACT NUMBER
1996.0179.001
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
BRASSCONSTRUCTION. STORED IN WOOD BOX, LINED WITH BLACK VELVET.

Dimensions

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

Length
15.5 cm
Width
10.3 cm
Height
10.7 cm
Thickness
N/A
Weight
N/A
Diameter
N/A
Volume
N/A

Lexicon

Group
Exploration and Survey
Category
Photogrammetry
Sub-Category
N/A

Manufacturer

AKA
Unknown
Country
Unknown
State/Province
Unknown
City
Unknown

Context

Country
Canada
State/Province
Ontario
Period
Unknown
Canada
Unknown
Function
TO ALIGN PROJECTORS ON PLOTTING TABLES.
Technical
EXAMPLE OF SIMPLE INSTRUMENT USED TO ALIGN PHOTOGRAMMETRIC PROJECTORS ON PLOTTING TABLE (AS PER RC BROOKS). PRECISE POINT AT WHICH A VERTICAL LINE THROUGH THE PERSPECTIVE CENTRE OF THE CAMERA LENS PIERCES THE PLANE OF THE PHOTOGRAPH KNOWN AS PHOTOGRAPH NADIR OR NADIR POINT. PRESUMABLY THIS BOB ENSURES VERTICAL ALIGNMENT.
Area Notes
Unknown

Details

Markings
'PSC MTS-2o' INCISED ON UPPER SURFACE OF SUPPORTING BASE. 'NADIR BOB' STENCILLED IN BLACK ON BOX TOP
Missing
UNKNOWN
Finish
PREDOMINANTLY BLACK. FACE OF PLATEN IS FLAT WHITE. BOX EXTERIOR STAINED & VARNISHED; BLACK VELVET LINING.
Decoration
N/A

CITE THIS OBJECT

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

Unknown Manufacturer, Bob, nadir, circa 1935–1960, Artifact no. 1996.0179, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1996.0179.001/

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