Spacer Ring, Explorer II/III

There are restrictions for re-using this image. For more information, visit the Smithsonian's Terms of Use page .

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more.

View manifest View in Mirador Viewer

Object Details

Manufacturer

Dr. George H. Ludwig, University of Iowa Physics Department

Summary

This is the Explorer II/Explorer III spacer ring for the top of a cosmic ray payload from the University of Iowa. The object is illustrated near the top of the cylinder in Figure 42 of Ludwig's master thesis. This object is a component from the primary backup payload inventory for early Explorer payloads designed and built by the University of Iowa. This component is original and has been in George Ludwig's possession since it was built in the late 1950s, with the exception of intervals when the components were used at JPL. Donated by Dr. George Ludwig in 2006.

Credit Line

Designed and donated by Dr. George H. Ludwig

Inventory Number

A20060086004

Restrictions & Rights

Usage conditions apply

Type

INSTRUMENTS-Scientific

Materials

Unknown Metal

Synthetic

Coating

Dimensions

3-D: 15.9 × 15.9 × 3.2cm (6 1/4 × 6 1/4 × 1 1/4 in.)

Country of Origin

United States of America

See more items in

National Air and Space Museum Collection

Data Source

National Air and Space Museum

Metadata Usage

Not determined

Link to Original Record

http://n2t.net/ark:/65665/nv92eba925e-8aef-49db-a5ed-2a7396c4ea6d

Record ID

nasm_A20060086004