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User keywords, or 'tags', are words added to object records by other users to enhance their discovery. You can add keywords that may be useful in helping others find this object.

We are experimenting with tagging because sometimes museums describe objects in language that is highly specialist and user added keywords are useful in bridging the 'semantic gap' between the language of the museum and that of the user.

Any keywords listed have been added by other users like yourself. You can click on them to use them as search terms to dicover other objects. User tags
Related subjects lists the broad themes that have relevance to the object you are viewing. You can click these themes to see other objects related thematically. Related Subjects
+ Optical astronomy
+ School of Physics, University of Sydney
Here you can find links to other objects in our collection that belong to the same formal classification categories as the object you are viewing. Similar objects
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'Autogenerated tags' are a new feature that we are testing. These tags are generated by passing the object record through the OpenCalais service from Reuters. This service makes a 'best guess' at the names, places, companies and specialist terminolgy that is in the text of the object records.

By clicking on a tag you can find all other collection records related to that person, place or company.

Because the tags are autogenerated there are likely to be some errors. If you spot one of these then please flag the tag for deletion by clicking the 'x'. Auto-generated tags: [Beta]

97/278/1 Mirror, glass/metal, part of Narrabri Stellar Interferometer, designed by Robert Hanbury Brown and Richard Twiss, Officine Galileo, Italy, 1960-1961
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Object statement
Mirror, glass/metal, part of Narrabri Stellar Interferometer, designed by Robert Hanbury Brown and Richard Twiss, Officine Galileo, Italy, 1960-1961
Production Notes include information about the design, manufacture and marketing of an object. Production notes
Robert Hanbury Brown and Richard Twiss designed the Narrabri Stellar Interferometer

Officine Galileo, Florence Italy

1960-1961
History Notes include facts about what has happened to an object since manufacture. This could include who owned it and how it was used (provenance). It may also describe any cultural meanings with which it may have become associated. History notes
The Stellar Interferometer was at Narrabri, NSW. It was used by the staff of the Chatterton Astronomy Department, School of Physics, University of Sydney. Work began with the interferometer in May 1965 and it was closed down in 1974.

 This text content licensed under CC BY-NC.

Description
Mirror, glass/metal, part of Narrabri Stellar Interferometer, designed by Robert Hanbury Brown and Richard Twiss, Officine Galileo, Italy, 1960-1961
Hexagonal shaped, glass front-aluminised mirror with metal plate at rear attached by nine spring-loaded screws. An electric 'blanket' heating system is glued to the back. The canvas is marked 228R 267. This mirror was one of 252, forming a 6.7 metre diameter optical reflector. The Stellar Interferometer had two such optical reflectors.

Designed: Brown, Robert Hanbury;

Designed: Twiss, Richard;

Made: Officine Galileo; Florence, Italy; 1960 - 1961


Used: Hanbury Brown-Twiss Interferometer; Narrabri, New South Wales

Used: School of Physics, University of Sydney; Narrabri, New South Wales
The Registration Number of an object is a unique identifying number applied by the museum at the point of acquisition. Current numbering format comprises the year of acquisition, followed by a sequential number. For example, '2007/45' is the Registration Number that represents the 45th acquisition in the year 2007. Registration number
97/278/1
Height
430 mm
Width
430 mm
Depth
100 mm

 This text content licensed under CC BY-SA.
Acquisition credit line
Gift of the Chatterton Astronomy Department, School of Physics, University of Sydney
Subjects
+ Optical astronomy
+ School of Physics, University of Sydney
Short persistent URL
Concise link back to this object: http://from.ph/157940
Cite this object in Wikipedia
Copy and paste this wiki-markup:

{{cite web |url=http://from.ph/157940 |title=97/278/1 Mirror, glass/metal, part of Narrabri Stellar Interferometer, designed by Robert Hanbury Brown and Richard Twiss, Officine Galileo, Italy, 1960-1961 |author=Powerhouse Museum |accessdate=19 May 2013 |publisher=Powerhouse Museum, Australia}}


Copyright
Images on this site are reproduced for the purposes of research and study only. Whilst every effort has been made to trace the Copyright holders, we would be grateful for any information concerning Copyright of the images and we will withdraw them immediately on Copyright holder's request.
Object viewed 4562 times. Parent IRN: 2125. Master IRN: 2125 Img: 11560 Flv: H:2036px W:3060px SMO:0 RIGHTS:.