Emilio Segrè Visual Archives

More than 30,000 photos of scientists and their work

Attention ESVA patrons:

The Emilio Segrè Visual Archives’ site is moving soon and adopting an open access approach to digital image sharing. Once we have transitioned to the new site in 2021, we will no longer charge for our high-resolution digital images or usage fees (note that we do not hold copyright to all the images in our collections and you will still need to obtain permission for those which we do not own).

If you are working on a long-term project, we advise you to wait until the migration is complete so that you may obtain our copies for free. If you cannot wait, email us at nbl [at] aip.org and we will do what we can to assist you. We will not be offering refunds for past purchases.

Smit Jan C1

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Smit Jan C1

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We charge a usage fee per photo if the photo is published, reproduced in a product or publicly exhibited. This is not a license in the legal sense. As a non-profit institution, we do not make any money providing these photographs. It is only by assessing usage fees that we are able to cover the cost of providing publication quality copies of our photos, preserving the photograph collection according to archival standards, and providing access to the collection by maintaining an online image database. The copyright holder may charge a fee in addition to our service fee.

Images are for use in educational projects only and must be used in a respectful manner.

$20.00
Image title: 
Jan Smit (left) and William Glen (right) on a field trip
Credit line: 
AIP Emilio Segrè Visual Archives, Gift of William Glen
Description: 

Jan Smit (left) and William Glen (right) on a field trip to the site of the impact-theory prompting anomalous iridium find near the town of Gubbio in northern Italy. Professor Smit has been instrumental in helping to clarify the nature of the mass extinction 65 million years ago that killed off 75% of all ocean species and the dinasaurs. His interview tapes with William Glen are among the most important of the more than 200 deposited at the Center for History of Physics in College Park, Maryland.

Original format: 
1 photographic print (black and white; 6 x 4 inches)
Person(s): 
Smit, J. (Jan), 1948-
Glen, William