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(Thanks to David Getman and Pamela Francis for suggesting some of these questions.)

Viewing stereographs

To appreciate stereographs, you need to view them in their full glory in three dimensions. There are severalways that you can view stereographs:

  • Purchase a plastic stereoviewer for about $3 from a store such as Berezin Stereo Photography Products ( (External Link) ). You can use this device to view stereographs on a computer screen, although you mayneed to make the window smaller. You can also print out and view the stereograph; try sizing it at about 4 x 7 inches.
  • Find authentic stereoscopes from the nineteenth or early twentieth century on eBay or at antique stores ($50 and up).
  • Use freeviewing, which doesn’t require a special instrument but does require you to cross your eyes slightly. If you can seethe hidden images in MagicEye, you can probably freeview. Learn more about freeviewing athttp://stereographer.com/viewing.html

Stereograph archives (online and physical)

The best way to understand stereographs is to examine them directly so that you can scrutinize their details andget a sense of them as physical objects. To determine whether a library near you has stereographs, try searching for“stereograph”in WorldCat, which aggregates records from thousand of libraries. So that you only get records for primary sources, limit the type of search to“Archival Materials”and“Visual Materials.”You can also restrict your search to a particular library or to libraries inyour area. Several institutions have provided online access to selections of their stereograph collections, including the Libraryof Congress and the Smithstonian Institution. You can also purchase original stereographs on web sites such as eBay and at antiquestores; the cost of a stereograph can range from $1 to over $300.

Francis Frith Stereocards of Egypt . National Museum of Photography, Film and Television. 12 August 2006. (External Link)

A selection of images from Frith’s important 1862 book, Egypt, Nubia and Ethiopia IIllustrated .

G. Eric and Edith Matson Photograph Collection . Library of Congress. 12 August 2006. (External Link) )).

Includes over 4000 stereographs of the Middle East.

Keystone Mast Collection . University of California Riverside/California Museum of Photography. 12 August2006. (External Link)

The archive of the Keystone View Company (1892-1963), with 350,000 stereoscopic prints and negatives (only afraction of that number are currently online).

Small Town America: Stereoscopic Views from the Robert Dennis Collection, 1850-1920 . New York Public Library. American Memory. 12 August 2006. (External Link)

Includes 12,000 images of New York, New Jersey, and Connecticut from the 1850s to the 1910s from the RobertN. Dennis Collection of Stereoscopic Views at the New York Public Library.

Stereographs Selection . Smithstonian Institution Research System. 12 August 2006. (External Link)

Includes the Underwood&Underwood Glass Stereograph Collection, consisting of 28,000 glass platenegatives.

Stereographs and Postcards . American Antiquarian Society. 12 August 2006. (External Link) [link]

Questions & Answers

Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
what school?
biomolecules are e building blocks of every organics and inorganic materials.
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
sciencedirect big data base
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
characteristics of micro business
for teaching engĺish at school how nano technology help us
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
what is the actual application of fullerenes nowadays?
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
is Bucky paper clear?
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Do you know which machine is used to that process?
how to fabricate graphene ink ?
for screen printed electrodes ?
What is lattice structure?
s. Reply
of graphene you mean?
or in general
in general
Graphene has a hexagonal structure
On having this app for quite a bit time, Haven't realised there's a chat room in it.
what is biological synthesis of nanoparticles
Sanket Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, History through the stereoscope: stereoscopy and virtual travel. OpenStax CNX. Oct 30, 2006 Download for free at http://cnx.org/content/col10371/1.3
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