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.

For more information, please visit our FAQ page on the Ex Libris Universum blog. 

Chadwick James D1

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Chadwick James D1

Image title: 
Chadwick's 75th Birthday
Credit line: 
AIP Emilio Segrè Visual Archives, Kowarski Collection

Left to right: Alec Merrison, James Chadwick, Lady Chadwick and others at Sir Chadwick's 75th birthday party at the Daresbury Nuclear Physics Laboratory.

Photo date: 
October 20, 1966
Original format: 
1 photographic print (black and white; 4.5 x 6 inches)
Chadwick, James, 1891-1974
Merrison, Alec, Sir, 1924-