Sell Your Wilhelm Rontgen Autograph for up to Over $1,000 or More at Nate D. Sanders Auctions
FREE APPRAISAL. To buy, auction, sell or consign your Wilhelm Rontgen autograph that is for sale, please email your description and photos to [email protected] of Nate D. Sanders Auctions (http://www.NateDSanders.com).
Sell Your Wilhelm Rontgen Autograph
Below is a recent realized price for a Wilhelm Rontgen autograph. We at Nate D. Sanders Auctions can obtain up to this amount or more for you:
Wilhelm Rontgen Autograph. Sold for over $1,000.
Here are some items that our auction house, Nate D. Sanders (http://www.NateDSanders.com), has sold:
Albert Einstein autograph letter signed with his hand drawings, elegantly explaining his electrostatic theory of special relativity to a physics teacher struggling to reconcile it with experiments he was conducting. In addition to the letter, which is new to the market, Einstein generously replies to a series of questions the teacher asks him on a questionnaire, providing additional drawings and calculations, initialed ”A.E.” at the conclusion. Dated 4 September 1953 on Princeton’s Institute for Advanced Study letterhead, Einstein writes to Arthur L. Converse, the teacher from Malcolm, Iowa, in part, ”There is no difficulty to explain your present experiment on the basis of the usual electrostatic theory. One has only to assume that there is a difference of potential between the body of the earth and higher layers of the atmosphere, the earth being negative relatively to those higher layers…[Einstein then draws Earth and the atmosphere, referring to it for clarification] The electric potential p rises linearly with the distance h from the surface of the earth…For all your experiments the following question is relevant: How big is the electric charge produced on a conductor which is situated in a certain height h, this body being connected with the earth…” Einstein then answers Converse’s questions on a two-page questionnaire. In one answer, Einstein seems to disagree with the question, providing both a diagram and mathematical equation and then a ”?” to try to aid understanding. He later writes ”not clear” to one answer along with a question mark and additional diagram with the notation ”charge of elektroscope increased proportional to h”. An extraordinary lot by Einstein showing the generosity of his time, with rare content on his theory of special relativity. Single page letter and two-page questionnaire each measures 8.5” x 11”. Also included is Einstein’s original mailing envelope from ”Room 115” of the Institute for Advanced Study, postmarked 7 September 1953 from Princeton. Folds and very light toning to letter, otherwise near fine. Questionnaire has folds, light toning and staple mark, otherwise near fine with bold handwriting by Einstein. Dark Albert Einstein autograph. With an LOA from the nephew of Arthur Converse and new to the market. Sold for $53,504.
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Lively autograph letter signed by Nobel winning quantum physicist pioneer Max Planck, who writes to fellow physicist Paul Epstein. Dated 19 January 1938, Planck muses on the first law of thermodynamics (before it was recognized as such), responding to Epstein’s mention of the 18th century scientist Albrecht von Haller learning that liquid warms by shaking. On Planck’s personal stationery, letter in German reads in full, ”Dear Doctor! / Your kind letter of the 17th of this month and the attached article on the background of the first fundamental theorem gave me great pleasure, for which I thank you sincerely. Concerning the content of your essay, your mentioning of [Albrecht von] Haller’s finding that ‘water, as well as milk, when moved vigorously, could reach a certain degree of warmth,’ was of particular interest to me. I remember exactly one of the stories told by my teacher in Munich, Philipp [von] Jolly, who was personally acquainted with J. R. [Julius Robert von] Mayer, relating that one day Mayer had burst into his room exclaiming, full of a discoverer’s joy, that water could be warmed by means of vigorous shaking. So someone else had already arrived there first after all. / But your letter made me happy in personal terms as well, since it was the first direct sign of life from you after some time. I am in awe about how much, considering your weakened physical condition, particularly with respect to your vision, you are still able to achieve. Many would envy even your firm handwriting. May this mental acuity remain with you during the new year as well. Very warm regards. / Yours respectfully, / M. Planck”. Two page letter on a single sheet measures 5.875” x 7”. Single fold, staple puncture and light toning. Very good condition. Sold for $2,500.
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Hendrik Antoon Lorentz autograph letter signed, dated 15 August 1921 from Haarlem, Netherlands where he taught at the University of Leiden. The Nobel Prize winning physicist writes a letter of recommendation for fellow physicist Paul Sophus Epstein, reading in part, ”Dr. Paul S. Epstein’s scientific work has given me the impression that he is one of the very best of young physicists. He combines great mathematical skill with a keen understanding of physical problems and has obtained results that will undoubtedly be of lasting value. / He has especially contributed to the development of the quantum theory…Indeed, whereas the older theories of light and electricity were unable to account for the effect discovered by Stark, the splitting of spectral lines by the action of electric force, Epstein succeeded in giving a full and highly satisfactory explanation of this phenomenon…following the principles underlying Bohr’s theory of spectra, he deduced not only the great number of components observed with many spectral lines, but also the absolute values of their mutual distances…I have come to appreciate very much his vast knowledge of the facts and theories of modern physics…H.A. Lorentz”. Later in 1921, Epstein was recruited to teach at Caltech, where he remained the rest of his career. Two page letter on bifolium stationery measures 8.5” x 10.75”. Folds and a few chips to edges, else near fine condition. Sold for $1,063.
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