Contemporary (Post-WWII)

Description of Collection:
Over six thousand letters, which include drafts, fair copies and carbons of Bohr's replies. The correspondence covers the development of quantum and nuclear physics. Correspondents include:

Hans Albrecht Bethe, Patrick Maynard Stuart Blackett, Felix Bloch, Harald Bohr, Max Born,
Christian Christiansen, Dirk Coster, Marie Curie, C. Cuthbertson,
Charles Galton Darwin, B. Davis, P. Debye, Max Delbrück, Paul Adrien Maurice Dirac, W. Duane,
Paul Ehrenfest, Albert Einstein, W.M. Elsasser, Poul Sophus Epstein,

A collection of some 25,000 historical photographs, slides, lithographs, engravings, and other visual materials, the Emilio Segrè Visual Archives is part of the Niels Bohr Library of the Center for History of Physics at the American Institute of Physics. The collection focuses on American physicists and astronomers of the twentieth century, but includes many scientists in Europe and elsewhere, in other fields related to physics, and in earlier times.

Historic Pittsburgh is a digital collection that provides an opportunity to explore and research the history of Pittsburgh and the surrounding Western Pennsylvania area on the Internet. This website enables access to historic material held by the University of Pittsburgh's University Library System, the Library & Archives of the Historical Society of Western Pennsylvania at the Senator John Heinz Pittsburgh Regional History Center, and the Carnegie Museum of Art. The project represents a model of cooperation between libraries and museums in providing online access to their respective materials.

The Social Welfare History Archives has acquired over 200 collections of organizational records or personal papers. The collections chronicle the development of a broad range of activities. Included are the classic social services offered to particularly vulnerable classes of persons, e. g., the economically dependent, recent immigrants, migrants and refugees, unwed mothers, abused and abandoned children, the aged, and the developmentally and physically challenged. Beyond these are causes and services aimed at the broader community, many of them not traditionally included in a narrow definition of social welfare: child-rearing advice for parents, recreation programs, community planning, arts programs, preventive health, and family planning. Because of the problem-solving mindset of the service field, the collection as a whole tends to stress times of crises. Coverage is richest in--but not limited to--times of war, depression, or other types of social and economic dislocation.

The Visual Index to the Virtual Archive is an innovative visually-based interface that uses a 3-D computer model of Manhattan as a click-on map, allowing Web visitors to view the city, present and past, and to access the Museum's collections through an on-line, searchable database. The idea of a visual index to the collection recognizes the importance of graphic representation in both the medium of the website and in the way that visitors, virtual or actual, come to understand and comprehend a city through its geography and landmarks.

Airline history in the continental United States of America was shaped early in its life by the US Postal Service's airmail contract system. This was extended to allow passenger carriers to win routes. The first routes were long-haul, trans-continental trunk routes connecting major hubs and these routes were what made the 'big-four' US airlines successful.

Secondary local routes feeding the trans-continental hubs were then awarded. So carriers in the US were divided into major and local companies. In more recent times most of these smaller carriers were taken over by the larger ones and so we see American, for instance, flying both trunk and feeder services.

Airshipsonline houses the online archive of the Airship Heritage Trust. Inside you will find an extensive history relating to all of the British Airships from 1900 to the present day. The OnLine-Forum is open to to offer comment and share in news and knowledge between members and the public who share in the interest of lighter than air travel. The Trust is a charitable voluntary run organisation based in the U.K. We own and are responsible for the national heritage airship archive and large collection of airship artifact's and photographs relating to the British Airship Programme, from it’s early days at the turn of the century to the Skyships of the 1980’s.

In London, arguments about the redevelopment of the area around the Thames River are becoming heated again. However, until recently, the riverside redevelopment plan centered around the Dockland, which was spotlighted in the '80's, had seemed to have faced a setback from 1990, due to the rapidly deteriorating English economic environment. In actuality, even today, the Dockland area, mainly Surrey and Canary Wharf, cannot be described as rejuvenated, and moreover, the economy has not arrived at an upswing. Even then, the arguments about the Thames River are becoming heated among a specific group.

FRITZ LEONHARDT, professor and former rector (president) of Stuttgart University, Germany, died on December 30, 1999. He was born in Stuttgart and received his university education at Stuttgart University. He carried on graduate studies at Purdue University in 1932 and 1933, returning to Stuttgart University to obtain his doctorate of engineering in 1938.

In 1939, after his collaboration with Wolfhart Andra, in the successful design of Europe's largest suspension bridge across the Rhine at Cologne, he formed the partnership of Leonhardt Andra and Partners, which became one of the world's best-known designers of major bridges.

"My father was an architect," he explains, "but my professional choice was civil engineering because it covers a much wider range than architecture - bridges, towers, roads, dams - and gives greater scope." But despite the options and freedom that the profession offered, Leonhardt very rapidly demonstrated his interest in bridges. He studied civil engineering in his home town - at Stuttgart University - and after four years studying for his diploma, won an exchange scholarship to the USA to continue his graduate studies. The scholarship was to Purdue University in West-Lafayette, Indiana. While he was there he spent some time working with his uncle on the design of a river bridge in Detroit, but more significantly, when he first arrived in New York, he immediately arranged meetings with David Steinman and Othmar Ammann. Talking to the two greatest living bridge designers in the USA only strengthened his interest in bridges, and this experience was to stand him in good stead when he graduated.