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. 

Jansky Karl F4

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Jansky Karl F4

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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: 
Solomon Buchsbaum and David Cohen place historic marker where radio astronomy was discovered
Credit line: 
Bell Laboratories / Alcatel-Lucent USA Inc., courtesy AIP Emilio Segrè Visual Archives, Physics Today Collection
Description: 

Solomon J. Buchsbaum, Executive Director of the Bell Labs Communications Sciences Division (left) and David Cohen, Mayor of Holmdel, NJ examine historic marker honoring the beginning of the science of radio astronomy. The marker was placed in front of Bell Labs Holmdel building on Crawford Cornor Road. More than 40 years ago, the late Karl Jansky, then a research engineer at Bell Labs, was studying the causes of static which was interfering with the Bell System's trans-Atlantic radio-telephone service. When he discovered that part of the static were radio waves emanating from the center of our own galaxy, the Milky Way, a new field of science -- radio astronomy -- was born. In the background is the horn antenna built by Bell Labs in 1960 for Project Echo, a passive satellite communications experiment. It was later modified for the Telstar experiments. Bell Labs uses the antenna today to study improved radio communications techniques.

Photo date: 
October 1973
Original format: 
1 photographic print (black and white; 9 x 8 inches)
Person(s): 
Jansky, Karl G.