Light Refactor(?)

Title

Light Refactor(?)

Subject

Physics Demonstration

Description

Physical Description:
Object has a black cast iron base that is a cylinder with a hollow center. The inside of the cylinder is lined with felt. A metal lid covers the hollow center and a circular glass lens sits in the center of the lid. The lid has numbers painted onto it with a black and gold placard with the inscription of the maker of the object along with the city and country of origin. On one side of the base there is a hole that a metal cradle sits in. A frosted glass lens sits in the cradle. A metal arm is attached at the base directly opposite the cradle. The arm is attached at a 30 degree angle. The arm has two metal rings connected to it with each ring at a different unique height. Both rings are made of cast iron and have fittings that allow them to slide on the arm. The fittings also have metal thumb screws that secure the rings at a given position on the arm. The two rings themselves are not the same. The ring on the bottom has a glass lens spanning the center with two metal poles sticking up on the ring. The poles are symmetrical in terms of position on the ring edge. The ring on the top of the arm contains a glass prism that sits inside a metal knob that can be rotated. Numbers are etched onto the surface of the ring.


Functional Description:
The device appears to have been used for showing the effects of light that has been passed through a prism at modular angles. The ring at the top of the arm can be used to rotate the glass prism and the numbers on the edge of the ring can be used to align the prism to specific degrees. The ring below contains two metal prongs that can be used to hold an object in place above the glass center. The glass cradle on the base is used to diffuse light onto the lid of the base.

Physical Dimensions: Base: 15cm x 6 cm x 15cm Arm: 1cm x 24cm x 1cm Top Ring: 6cm x 3cm x 6cm Bottom Ring: 7.25 cm x 1.75cm x 7.25 cm

Materials: cast iron, glass, frosted glass, steel

Inscriptions: Lid: 75001 6050 Placard: The | GAERTNER | SCIENTIFIC CORPORATION | Chicago U.S.A

Creator

Gary Spikberg, Andrew Merdzinski, Andrew Stanley, Nick Lesko

Date

UNKNOWN

Format

Physical Object

Language

English

Type

Physics Demonstration

Identifier

MCMT-8121

Physical Dimensions

Base: 15cm x 6 cm x 15cm Arm: 1cm x 24cm x 1cm Top Ring: 6cm x 3cm x 6cm Bottom Ring: 7.25 cm x 1.75cm x 7.25 cm

Materials

cast iron, glass, frosted glass, steel

Maker

Gaertner Scientific Corporation

Inscriptions

Lid: 75001 6050 Placard: The | GAERTNER | SCIENTIFIC CORPORATION | Chicago U.S.A

Location

AOB Annex

Files

20191107_144904 (2).jpg
20191107_144832 (2).jpg
20191107_144844.jpg
20191107_144913 (2).jpg
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20191107_145046 (2).jpg
20191107_145204 (2).jpg
20191107_145228 (2).jpg

Collection

Citation

Gary Spikberg, Andrew Merdzinski, Andrew Stanley, Nick Lesko, “Light Refactor(?),” Michigan Tech Inventory of Historic Scientific Instruments, accessed October 22, 2020, https://ihsi.omeka.net/items/show/179.

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