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US government, combined with the mounting security investigation into his background, was what prompted him to flee. The timing is persuasive: the day the news of the suit reached Europe, Ponte- corvo set his plans for defection in motion. Turchetti is critical of contemporaneous media accounts and later books that allege Pontecorvo was a spy; some are based on recollections of former agents of the Soviet security service. Decades on, there is no firm evidence to support the allegation. What did Pontecorvo offer the Soviet atomic weapons programme? Here

Turchetti speculates, based on what PAVIA UNIV. HIST., (1752–1821)/ MUS. NAT. VOLPI GIAMBATTISTA is known. After his defection, Ponte- corvo worked at the Dubna Institute for Nuclear Research near Moscow (now the Joint Institute for Nuclear Research) — ostensibly only on civil nuclear science. Turchetti argues that, in reality, his expertise would have allowed him to make important contributions to the Soviet atomic bomb without necessarily working on secret projects. In particular, Pontecorvo’s geophysical expertise may have helped the to gain access to uranium reserves, which were in short supply in the 1950s. Today, neither the Russian archives nor those of the US Federal Bureau of Inves- tigation on Pontecorvo are open. Such secrecy tells us much about those times and about the post-cold-war mindsets A dynamic eighteenth-century exhibit of horse muscle anatomy from Pavia’s Museum of Natural History. on both sides of the fence, which remain riddled with paranoia. The allegations MUSEUMS of espionage levied in 1999 against Wen Ho Lee, a Taiwanese–US work- ing at Los Alamos National Laboratory in , demonstrate how those Stripped assets fears continue to guide, and misguide, investigations of such claims. Paolo Mazzarello argues that the disposal of collections Wen Ho Lee was exonerated of espio- requires clear consultation with the public. nage. Pontecorvo — who died in Russia in 1993, deeply disillusioned with com- munism — remains in posthumous limbo. useums are facing a sort of safeguard the evidence of important changes One thing is clear. If Pontecorvo was not Malthusian constraint — an explo- in the history of the planet and human- a spy, and his defection was based simply sive increase in the volume of their kind, is an endless task. In response, they on fear of persecution and a preference Mcollections, coupled with a severe reduction must be dynamic places, where the acquisi- for life under communism, he made a in funding, fuelled partly by the current eco- tion of objects is balanced by the planned poor choice. In the West during the cold nomic crisis. Collections cannot be increased deaccession or disposal of others. war, lost their jobs amid witch- indefinitely and sustained forever. So what Such an activity is at odds with the fusty hunts, but in the Soviet Union, at least happens when a saturation point is reached? image of a museum as a place where items are under Joseph Stalin, the outcomes were The ��������������������������������������Museum of Natural History at the Uni- preserved in display cases or kept in storage. more dire. Nothing in the book illustrates versity of Pavia in Italy is an example of how However, the disposal of materials demands this better than Stalin’s comment on a pro- things can go wrong at such a tipping point. care: whether justifiable or not, it is often posed conference organized by nuclear Founded by naturalist Lazzaro Spallanzani highly controversial and can devastate an physicists: “Leave them in peace, we can in the eighteenth century, the museum was institution’s image. From small civic archives shoot them later.” ■ dismantled in the 1930s in the face of finan- to the vast Prado in Madrid, museums are the cial and other pressures. The collection — repositories of our collective past and iden- Sharon Weinberger is a writer based in including some of the first animal specimens tity, and that makes any broad discussion of Washington DC and a Carnegie Fellow preserved by taxidermy — was then dispersed disposal problematic. at the Medill School of Journalism, across a number of sites in Pavia and the Careful accession NATURE.COM Northwestern University, Evanston, surrounding area. and deaccession poli- For more on Illinois, USA. This was an extreme solution, but museums cies are becoming university museums: e-mail: [email protected] must evolve. The goal of museums, to increasingly important go.nature.com/mu92rw

36 | NATURE | VOL 480 | 1 DECEMBER 2011 © 2011 Macmillan Publishers Limited. All rights reserved BOOKS & ARTS COMMENT elements of museum management, whether local, regional or national — particularly in the current climate of reduced funding. In Books in brief Italy, these policies are crucial. The country harbours 47 World Heritage sites, more than In the Field, Among the Feathered: A History of Birders any other nation, and is home to 4,000 pub- and Their Guides licly registered museums, including some Thomas R. Dunlap Oxford University Press 256 pp. $34.95 (2011) of the most important art collections in the Birdwatching may be an amateur science, but it retains close links world. But funds are shrinking, to the point to ornithology and conservation. In the century since twitching at which the existence of some museums, and emerged as a suburban hobby, the one constant has been the field some of the country’s most famous works, guide. Historian and birder Thomas Dunlap trains his binoculars on hangs in the balance. For example, in June its evolution in the . His meticulous chronicle reveals it was discovered that Raphael’s masterpiece how the collective urge to spot Nashville warblers or bald eagles The Marriage of the Virgin was endangered ultimately jump-started the US eco-movement, and why the hobby by water seeping through the walls of the is one of the great unfolding stories of crowd-sourced nature study. Brera Art Gallery in Milan, owing to a lack of routine maintenance. Yet strategic disposals, including long-term People Will Talk: The Surprising Science of Reputation or even indefinite loans of museum pieces, are John Whitfield Wiley 272 pp. £17.99 (2011) not being seriously considered by museums Reputation is central to our lives, says science writer John Whitfield, worldwide as a way to cope with the costs of yet we are not entirely aware of it. He draws on philosophy, sociology, maintaining full public collections. Museum economics and animal-behaviour experiments to punch through authorities in Italy, as in many other coun- the surface of this powerful and perplexing phenomenon. At base, tries, have elected to adopt such measures as he finds, it rests on how we trust others and how we persuade others reduced visiting hours rather than consider to trust us. An individual’s concern for his or her reputation can be a the disposal of selected holdings publicly and fulcrum that tips them towards either brutal or altruistic behaviour openly — perhaps fearing a public backlash. — so ultimately, says Whitfield, the way in which society uses This is not, of course, to suggest that museums reputation determines whether that society thrives or fails. should sell holdings simply to cover the costs of routine maintenance; but it may be neces- sary for some to be realistic and open about Da Vinci’s Ghost: The Untold Story of the World’s the size of their holdings and the number of Most Famous Drawing pieces that can be successfully exhibited. Toby Lester Profile/Free Press 263 pp. £16.99/$26.99 (2011/2012) To achieve a balanced ebb and flow of Leonardo da Vinci’s Vitruvian Man — poised within a circle and a pieces in museum collections, the phases of square — is arguably history’s most iconic image. Writer Toby Lester accession and disposal need to be carefully offers the absorbing story of this Renaissance rendering. Touching evaluated and managed. Traditionally, cura- on anatomy, medicine, geography, mathematics, philosophy and tors tended not to limit the inflow of items — aesthetics, he explores the idea that the body, geometry and mystic in some cases coming to resemble compulsive reality are linked. Its progenitor was Roman architect Marcus Vitruvius hoarders. Today it is common for curators, Pollio, who posited that human proportions echo the cosmos and applying narrower and more demanding should set the form for architecture and for all civilization. criteria in their selection of accessions, to refuse 90% of the offers made. Although most donations may be turned Time Travel and Warp Drives: A Scientific Guide to Shortcuts down without damaging the public percep- through Time and Space tion of a museum, disposal of materials that Allen Everett and Thomas Roman University of Chicago Press are already held is a different matter. In the 280 pp. $30 (2011) United Kingdom in 2009–10, for instance, Physicist Allen Everett and mathematician Thomas Roman boldly public outcry halted Southampton City go into the big speculations that lie at the root of ‘frontier science’, Council’s attempt to sell works by sculp- such as time travel. Through clear explanations and judiciously tor Auguste Rodin and British artist Alfred deployed basic algebra, they lay out the science behind the weirder Munnings in order to raise money for a new possibilities offered by the characteristics of space-time. Travelling museum dedicated to the RMS Titanic. Com- backwards in time, for instance, can be linked theoretically to peting resources, and debates over the relative moving faster than the speed of light. Warp bubbles, anyone? significance of pieces or collections, form just part of the criteria for deaccession. The views of museum audiences need to be factored in. Panda: Back from the Brink Debates over deaccession and disposal Zhou Mengqi Saraband 192 pp. £25 (2011) should be conducted transparently, accom- The one-note diet, monochrome markings and long association panied by a clear public explanation and with fertility treatments in captivity lend the giant panda an unreal rationale, and should involve the views of all air. But these animals are resilient: against all the odds, they total an stakeholders — from museum staff to local estimated 2,000 individuals. This tribute to the beauty of the beast authorities and concerned individuals. This is informed by leading conservationists, but centres on stunning way, the public’s sense of ownership of prized shots by photographer Zhou Mengqi. Backed by advice from panda local collections can be honoured. experts Zhang Zhihe, Zhang Hemin and Hu Jinchu, Mengqi tracked In the 1980s and early 1990s, Canada’s his elusive subjects through the mountains of Sichuan for years.

1 DECEMBER 2011 | VOL 480 | NATURE | 37 © 2011 Macmillan Publishers Limited. All rights reserved COMMENT BOOKS & ARTS

Glenbow Museum in Calgary, Alberta, Deaccession is never simple, and is not than 70 years — was only disbanded, not successfully used such a process to transfer or to be undertaken lightly. Hastily conceived permanently disposed of. We, at the Univer- sell around 30,000 inherited objects that were action could mean big losses for future sity of Pavia, are about to begin the process no longer relevant to its mission. This large- generations. But meticulously planned of reconstituting a great part of the original scale, strategic disposal of objects, including disposals for the right reasons are preferable collection for eventual display here, to grant a texts and ethnological and military-history to the disposal of an entire collection, as has future to a vital window onto the past. ■ collections, allowed the museum to sharpen happened in the past. its focus and release resources for other core Happily, such disposals may not be the Paolo Mazzarello is director of the sections. Importantly, the move was recog- final curtain in every case. Spallanzani’s great University History Museum and head of the nized as valid by the public. The distribu- museum in Pavia may have a future. The col- University Museums System, University of tion of pieces also boosted the value of the lection — a once-cherished jewel of our city Pavia, Italy. collections they joined. and country that has lain dormant for more e-mail: [email protected]

CHEMISTRY come across clearly on stage, however, and at first the plot was confusing. But once the spectator gets used to the impressionist- fantasy narrative style, it works. An elemental heroine Weiss has created several beautifully effec- tive scenes, notably Marie’s grief after Pierre’s An opera on the astonishing life of Marie Curie enthralls death, a comic duel over the Langevin affair, Stefan Michalowski and Georgia Smith. and scenes in which the chorus plays a fickle public vacillating between idolizing Curie and despising her. The finale is particularly arie Curie’s life seems to be ready- powerful: as the orchestra builds a stunning made for grand opera: the brilliant crescendo, Marie hobbles from the stage heroine who overcomes poverty supporting the lifeless body of a dancer who Mand prejudice to marry her soulmate and has been her symbolic double throughout. work with him as an equal, winning a Nobel The music for the voices spans the spec- prize. Then, the tragedy of her husband’s trum from intense lyricism to plain speech.

accidental death, the scandal of her affair Marie’s aria lamenting Pierre’s death, mov- S. ĆWIKŁA/OPERA BAŁTYCKA with a married colleague, a second Nobel, ingly performed by Mikołajczyk, is a strik- heroic war work and her own sad death ing combination of late-Romantic aesthetic caused by years of exposure to radiation. articulated through the idiom of contem- Now it is indeed an opera: Polish composer porary music. Sikora has a flair for the sud- Elżbieta Sikora’s Madame Curie premiered in den quiet of instrumental solos: one dance Paris on 15 November, and was performed in sequence is accompanied only by a long, Gdansk, Poland, on 23–26 November. ravishing clarinet solo. More such moments Director Marek Weiss brought a full might be welcome in what is otherwise a orchestra, cast and chorus from the Baltic relentless pattern of repeated, hard-hitting Opera of Gdansk to the headquarters of the Soprano Anna Mikołajczyk as Marie Curie. climaxes in both drama and music. United Nations Educational, Scientific and There is one serious disappointment in the Cultural Organization (UNESCO) in Paris the excitement that gripped the research com- way this story is told. Directly after the over- for the opening, as part of the International munity during the birth of subatomic physics ture, an aged man resembling Albert Einstein Year of Chemistry. in the early 1900s. Sikora said in a pre-show appears to Marie. He warns her that devastat- Sikora’s work has been widely performed interview that she “was looking for a strong ing consequences could result from her work, in contemporary-music venues. She has writ- woman character”, and although the stage and urges her to stop. A video projection of a ten large choral pieces, but her two previous set is the Curies’ rudimentary laboratory, it is mushroom cloud rams home the point. operas are on a smaller scale than Madame Marie as a heroic woman that we see, rather Marie shakes off this vision, insisting on the Curie, which has a big, ambitious score that than Marie as a brilliant scientific mind. necessity of pursuing the truth. But associat- is as precisely wrought as a chamber work. As the opera opens, she enters in her ing Curie with nuclear weapons is untenable The music is atonal, but is full of attractive nightgown, reading a letter from the Swed- — the relevant discoveries were made shortly melodic structures. ish Academy that asks her not to come to before and after her death. Attributing the Intriguing orchestral textures are Stockholm to accept her second Nobel prize ethical choices of later scientists to her makes seamlessly integrated with pre-recorded because of the public scandal about her affair no more sense than the dismissive sexism she electro-acoustic segments, which Sikora with physicist Paul Langevin. The rest of the endured during her lifetime. ■ created in collaboration with Argentinian opera is a succession of scenes from her life, composer Diego Losa. Conductor Wojciech presented with little Stefan Michalowski is a former particle Michniewski elicited a fine performance Madame Curie or no visual demarca- physicist, and executive secretary of the from the orchestra and chorus in Paris. The COMPOSED BY tion. Weiss explained OECD Global Science Forum in Paris. cast of fresh-voiced young singers acquitted ELŻBIETA SIKORA; in an interview that he Georgia Smith is a freelance journalist LIBRETTO BY AGATA themselves well, particularly soprano Anna MIKLASZEWSKA envisioned the opera based in Paris. Mikołajczyk as Marie. UNESCO Headquarters, as a dream that Marie e-mails: [email protected]; [email protected] The opera does not delve into Curie’s Paris. has after receiving scientific discoveries, nor does it try to depict 15 November 2011. the letter. This didn’t This article does not represent the views of the OECD.

38 | NATURE | VOL 480 | 1 DECEMBER 2011 © 2011 Macmillan Publishers Limited. All rights reserved