Accession No

3697

Brief Description

Boys’ radiomicrometer, English, 1890-1900 (c)

Origin

Maker

Class

electrical

Earliest Date

1890

Latest Date

1900

Inscription Date

Material

wood; metal (brass); paper

Dimensions

length 370mm; breadth 134mm; height 129mm

Special Collection

Provenance

Transferred from Cavendish Laboratory, University of Cambridge, Cambridge, England.

Inscription

‘Boy’s Radio-
michrometer’ (on paper label on top of cover (added))

Description Notes

Boys’ radiomicrometer, English, 1890-1900 (c). Probably hand made by Cavendish Laboratory technician.

Rectangular wooden base; three brass levelling feet; four-layer horseshoe magnet mounted horizontally, with removable pole pieces; brass chamber for suspended system; rectangular wooden cover (painted red and black) with holes in ends for radiation, and in top for suspension tube.

Condition: poor; incomplete (suspension tube, suspended system, levelling screws missing).

References

Events