Brooks, C. WaylandMareMagnum
Typed letter signed London, 11 April 1975.
4to. ½ page. With typed envelope. To an collector, thanking for sending him some newspaper clippings.
26 497 résultats
1 p. Very good condition
1 p. Very good condition
1 p. Very good condition
1 p. Very good condition
4to. ½ page. With typed envelope. To an collector, thanking for sending him some newspaper clippings.
4to. 1 p. In German. To Helene Katzenstein, the widow of Einstein's close friend and sometime sailing companion, the Berlin surgeon Moritz Katzenstein (1872-1932): "I deeply feel what a difficult time you are having under the present circumstances. And I shall gladly do anything to rescue you from this unsatisfactory and depressing situation. I myself have experienced at close quarters what trouble people can create for each other in everyday life when bound together within such a restricted space. Assume as philosophical a stance as you can and remember that a leopard cannot change his spots for all the sharpness of his claws [...]". - On stationery with printed letterhead; traces of folds.
4to. (203:254 mm). 1 page. On headed notepaper. Hawking encloses an improved version of a paper co-authored with George Ellis (the work, not present here, was ‘The Cosmic Black-Body Radiation and the Existence of Singularities in Our Universe’, The Astrophysical Journal, Vol. 152 (April 1968), p. 25], noting that the ‘calculations of the convergence condition have been redrawn’. Hawking enjoyed his visit to Maryland, which prompted some ideas about Misner incompleteness that he intends to put into a paper when he has time. He continues: ‘I heard Stan Deser outline his proof that mass is positive definite. He claims that a function whose only critical value is zero and which has a local minimum there is necessarily positive elsewhere. It seems to me that there are counter examples to this in finite dimensions – not to speak of the infinite dimensions case’. A reminder about payment for his last week at Maryland and travel expenses ends the letter, Hawking professing himself embarrassed, but mentioning it in case the cheque might be missing in the post. - Stephen Hawking first met the American physicist Charles W. Misner during the latter’s 1966-67 visit to Cambridge at the invitation of Hawking’s postgraduate supervisor Dennis Sciama; the two became close, and Hawking visited Misner at his own institution, the University of Maryland, at the end of 1967. Hawking’s work on singularity theorems, which he first published in his 1965 doctoral thesis, overlapped with the research Misner was undertaking on geodesical incompleteness, a notion at the centre of the concepts Hawking was developing with Roger Penrose (the ‘Penrose-Hawking singularity theorems’). Here, Hawking seemingly refers to a proof that another of their colleagues in the field, Stanley Deser, would publish the following year in the Physical Review Letters, in a paper entitled ‘Positive-Definiteness of Gravitational Field Energy’. - Provenance: Charles W. Misner.
Large 4to. 1½ pp. on 2 pp. To Stalin about the current tax revenue by the agricultural tax: "[...] Ukazom Prezidiuma Verkhovnogo Soveta Soyuza SSR ot 13 iyunya 1948 goda byli vneseny izmeneniya v otdelnye stati zakona o selskokhozyaystvennom naloge. V rezultate proizvedennogo oblozheniya, summa selskokhozyaystvennogo naloga na Ukraine vyrosla protiv proshlogo goda na 641 mln. rubley i sostavlyaet v tekushchem godu 2101 mln. rubley. Vnesenie izmeneniy v otdelnye stati zakona o selskokhozyaystvennom naloge partiynye i sovetskie organy Ukrainy vosprinyali kak ukazanie na neobkhodimost udelit bolshe vnimaniya delu mobililzatsii sredstv naseleniya i uluchshit organizatsiyu uplaty naloga. Vpervye selskokhozyaystvennyy nolog dosrochno vypolnyaetsya v razmere godovogo zadaniya v tselom po oblastyam i respublike. Na Vashe imya uzhe postupili raporty o dosrochnom vnesenii selkhoznaloga v razmere godovogo zadaniya ot Voroshilovgradskoy, Stalinskoy, Izamailskoy, Chernovitskoy i Zakarpatskoy oblastey, a ryad oblastey zakanchivayut vypolnenie godovogo zadaniya v blizhayshie dni. V tselom po Ukraine godovoe zadanie na 28 noyabrya vypolneno na 87,4 %. Prosim Vashego razresheniya na opublikovanie v presse raportov oblastey na Vashe imya o vypolnenii imi selkhozyaystvennogo naloga [...]". - Left margin with punched holes (small defects).
4to. 2 pp. on 2 ff. In English. To the U.S. diplomat J. Franklin Ray, director of the Far East Office of the UN Relief and Rehabilitation Administration (UNRRA), acknowledging the dangers encountered by convoys delivering aid, and suggesting the establishment of liaison offices in both Communist and Nationalist areas: "I am very appreciative of your thoughtfulness in sending me the attached report made by the UNRRA inspector which gives me more understanding towards the difficulties encountered by the UNRRA and CNRRA transportation convoy in passing through the combat regions. It is comprehensible that the relief work in combat regions is hazardous; therefore it is inadvisable to ask the UNRRA or CNRRA personnel to carry it on at the risk of their lives. We suggest hereby to you that under the present circumstances separate liaison offices should be established in Nationalist and Communist areas respectively so as to facilitate the relief work. With the institution of these liaison offices, the relief personnel can carry out their work in cooperation with the local governments and military authorities, without being endangered by travelling between the areas and running through blockade lines and combat regions. Dr. T. F. Tsiang has already associated himself with my suggestion [...]". - With pencil annotations by Ray concerning further action: "We agree & are working actively on this as rapidly as necessary personnel can be mobilized [...]". - One of the principal leaders of the Chinese Communist Party, Zhou Enlai had played a key role fomenting unrest in Shanghai in the 1920s and was one of Mao's most trusted lieutenants by the time of the Long March. He was involved in intelligence and diplomatic work during the war with Japan. Premier of the PRC from its foundation until his death in 1976, he was additionally Foreign Minister from 1949 to 1958. - The letter was written when Zhou was representing the CCP at the Marshall Mission which, under American leadership, attempted to bring about a united government in China following the defeat of the Japanese. The Communists and Nationalists had signed a ceasefire in January 1946 but there was deep distrust between the two sides. By the summer of 1946 there were frequent clashes between Communists and Nationalists, especially in Manchuria, and negotiations were on the verge of collapse. This letter shows Zhou working to ensure the safety of aid convoys on behalf of the United Nations Relief and Rehabilitation Administration (UNRRA) and also the Nationalist Chinese National Relief and Rehabilitation Administration (CNRRA). - J(efferson) Franklin Ray (1905-91) served in several United Nations and State Department positions. He was director of UNRRA's Far East Office from 1945 to 1947; he was also a member of the 1948 and 1949 delegation to the Far Eastern Commission. Most of his posthumous papers are kept at the Hoover Institution at Stanford University. - Traces of rust and pin holes to the upper left corner. Upper edge clipped without loss. Provenance: Stargardt, sale of 12 June 1986, lot 1223. Extremely rare.
