D O C U M E N T 2 5 4 J A N U A R Y 1 9 2 0 3 5 3
Meine Antrittsvorlesung will ich über „Aether und Relativitätstheorie“ halten,
weil Lorentz schon bei meinem Besuch in Leiden wünschte, dass ich zu dieser Fra-
ge gelegentlich öffentlich Stellung
nehme.[13]
Die Rotverschiebung ist jetzt auch ziemlich gesichert, und zwar bei der Sonne;
Grebe und Bachem in Bonn haben den bisherigen negativen Befund in überra-
schend simpler Weise aufgeklärt (z. T. falsche Identifizierung der Linien ohne Be-
rücksichtigung einer Verschiebung, in sehr linien-dichten Partiern des Sonnenspek-
trums) Die Arbeit wird bald in den „Verhandlungen“
erscheinen.[14]
Es ist geplant, die „Verhandlungen“ und die „phys. Zeitschr“ zu vereinigen, so-
dass wir das Zuviel an Zeitschriften nun doch
vermeiden.[15]
Es grüsst Euch alle herzlich Dein
Einstein.
Wenn ich wieder nach Leiden komme, bringe ich wenigstens eine von den Geigen
mit. Ihr wisst doch, dass auch ich mir eine Zwillingsschwester zu ihnen bestellt ha-
be. Alle sind noch in
Arbeit.[16]
Wegen Epstein schrieb ich zunächst an zwei Stellen nach
Zürich.[17]
Ich hoffe,
es wird dort für ihn gesorgt werden. Wenn ich was von dort höre, schreibe ich Dirs
wieder.
ALS. [9 463]. Partially obscured.
[1]Year is provided on the assumption that the document is a response to Doc. 239.
[2]The baby grand piano that Einstein had purchased for Ehrenfest (see Doc. 204).
[3]On the reasons for the postponement of the Basel conference on the Hebrew University, see
Doc. 233, note 8.
[4]Two weeks earlier, Ehrenfest had outlined concrete steps for establishing the Hebrew University,
stressing the need to initially create applied research institutes in Palestine and erect a “hothouse” for
research in mathematics at a Dutch university for young Jewish scholars from Eastern Europe (see
Doc. 239).
[5]The following month, Einstein and Leopold Landau petitioned the Prussian Ministry of Educa-
tion to make higher education more accessible to foreign students, mostly eastern European Jews,
who were unable to receive credits toward a degree (see Docs. 317 and 344).
[6]Hugo Bergmann sketched the steps of establishing a university in Palestine in Doc. 171.
The Zionist Organisation had recently started allocating funds toward the establishment of the uni-
versity. In a letter to Bella Berligne, Weizmann wrote on 21 January 1920: “The affairs at the U[ni-
versi]ty are beginning to take shape. The [Zionist] Organization voted £15,000 for the conversion of
the house on Scopus into a University building” (see Reinharz 1977, p. 280). The “Statement on the
Present Position of the University Question,” dated 21 January 1920, which was sent to Einstein, pro-
vided a general outline of the significant developments in the establishment of the university, includ-
ing plans for the proposed building and institutes, the library, equipment, and staff. In mid-January,
Bergmann informed Martin Buber (1878–1965) that in the first stage of the university’s development,
research institutes would be established for physics, chemistry, and microbiology; in the second stage,
a Hebrew Institute would be set up; and in the third stage, a philosophical faculty would be estab-
lished. Bergmann also informed Buber that the planned conference on the university would probably
be held in July at the next annual Zionist meeting or Zionist Congress (see Hugo Bergmann to Martin
Buber, 13 January 1920, in Bergman 1985, p. 135).
[7]In Doc. 175, Ehrenfest outlined the bureaucratic procedure necessary for Einstein’s special pro-
fessorship at the University of Leyden.
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