EINSTEIN, ALBERT. Autograph letter signed ("A. Einstein"), n.p., 15 January 1937. Oblong 4to, neatly tipped to another sheet, in German. EINSTEIN ON X-RAYS. Einstein had arrived in the United States in 1933 and was working at the Institute for Advance Study, Princeton. Here he responds to a scientific question: "...X rays are not deflected by a magnetic field. In your case it is apparently a deflection of the cathode rays that produce the X rays."

细节

EINSTEIN, ALBERT. Autograph letter signed ("A. Einstein"), n.p., 15 January 1937. Oblong 4to, neatly tipped to another sheet, in German. EINSTEIN ON X-RAYS. Einstein had arrived in the United States in 1933 and was working at the Institute for Advance Study, Princeton. Here he responds to a scientific question: "...X rays are not deflected by a magnetic field. In your case it is apparently a deflection of the cathode rays that produce the X rays."