Heliostat foucault

Title

Heliostat foucault

Subject

Astronomy
Optical instrument

Description

Metal, glass

Also Foucault siderostat. Marked “Societe Genevoise, pour la construction, D’instruments de physcique, Geneve.” Wind up drive does not work. Spirit level on black metal base with 3 leveling screws.

Siderostats are used with a fixed telescope, a flat mirror is rotated by a lever arm connected to motor turning once every 24 hours. James Biddle of Philadelphia imported these instruments.

Creator

Societe Genevoise D’instruments de physcique (SIP), Geneva, Switzerland

Source

Prix-courant 1900 / Société Genevoise pour la construction d'instruments de physique et de mécanique, Chemin Gourgas, Genève (1900) Genève : W. Kündig & Fils. Page 86.

Publisher

Astronomy Department, University of Illinois, Urbana, Illinois

Date

1910

Contributor

Michael Svec

Rights

Copyright Michael Svec

Format

image/jpg

Language

English

Type

physical object

Identifier

University of Illinois Observatory Collection A209
University ID 055343

Coverage

University of Illinois Observatory, Urbana, Illinois

Files

Heliostat foucault

Tags

Citation

Societe Genevoise D’instruments de physcique (SIP), Geneva, Switzerland, “Heliostat foucault,” University of Illinois Observatory Collection, accessed December 16, 2017, http://uiobservatory.omeka.net/items/show/12.