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the world over have for Dr. Ein- ir stein when he PCE hls jaar Pees ee | Le ee Applications of His Relativity by referring to Dr. Einstein as : . “the greatest member of our _and Quantum Theories Told [protherhood.” _ in Symposium at Princeton | | Relativity After 4 Yours ; : . Professor Rabi began by declar- ing that “relativity ie as vigorous! By WILLIAM L. LAURENCE |today aa it was forty-four years Special to Tax New Your Tusxs, | [ago, when like athena, it sprang PRINCETON, N. J., March 19— from his (Einstein's jovian brow. | t s significant cele on of}! More than 300 leaders in physics | ninstein's geventieth birthday,” he astronomy, mathematics and cos- went on, “is hardly equalled in the mology paid tribute here today tol whole histery of eclence, for when Prof. Albert “Einstein whom was there another man whose con- ree rn aw once de-|tribution was so great? When was acribed as one of the three universe there, a theme as noble and Pre 1 : ound as eory of re y? builders in man’a recorded history. “No other main before Einstein, The occasion was ® symposium oy gince, has delved so deeply into on Einstein's contributions to con-lour most instinctive concepta of temporary acience, held under the[space, time and causality, no one auspices of Princeton University|>35 brought up so much new - ‘ knowledge and understanding. sand the Institute for Advanced “Even the t modern Study here, of which Dr. Einstein xpert the most illustrious member. I¢}™ental methods are as yet incap- able of grappling with the subtle arranged in celebration of Dr. and delicate effects predicted rereary engin Pirthoay an-/rinstein’a general relativity th - (which unified the laws of mo ee er, minstein entered quietly/ with the law of gravitation). e gathering rose and applauded] " «crest as these effects ma: for several minutes. He then took 7 list in terms of astronomical and cos- his seat and ned attentively Mological magnitudes, they Have as as the speakers outlined the Tevo- yet proved inaccessible to a to the two basic approaches to the trial experiment. . | ~~ { i. lutionary role of his contributions physical world, the relativity and) Atomic Gain on 80th Birthday quantum theories.” “Yet, I venture to predict that He shook his head when he was)with the advance of microwave asked if he wanted to make any/techniques, by the time Professor jcomments and departed as quietly/ Rinstein’s eightieth birthday rolls 1S 2G CRIP Lh. PALLET LOE LUTE {session he paused for photographs ‘with the symposium speakers. ; Topics and Speakers of Day around, experiments will exist which will demonstrate the effect of gravitational potential on the rate of his favorite _Hmepiece—the atomic clock. The subjects discussed at the “In 1005 Hinstein crea tea the director"of tire tum Max é for Se Vanced Study; the suggested five years x Planck hed imp coperimental physica by moe then thése two theories have be- IL bi Nobel Prize winning |cCome inseparably intertwined a Fy of Columbia Univeraity | ough not yet welded into a 4 invariance in physical theery “Without these children of y - ‘Wigner of ~jistein’s imagination, one na - born, the ‘other adopted, re nyes be no modern experim 2 yaica.” “It we gave relativity back to 6 ch spire state of relativistic cosmology by This is a P Cali-|HZinstein,” Prof, Rabi concluced, Prot 3. By Robertaoa-of the re-| “he would have to take along with! 7 of the ew York Times for lativity effecka in Planetary mo-- ona by pr Memenge of he United tes Nava r ry. of the 3-38 1949 lWashington, and the theory of ipelativity as & eae Dy to math- Clipped at the Seat of Government: _ Prof. Eugene ceton " Subjects discussed at the after- ‘noon session were the present stemic domain by Dr. J. Ze year he veered a 4am ematical research b Wav) | of the Taotitute for &dvanced Wane satis becesa!” Abr a i A recording tej health, happiness and, what is per- . Kinstein (Eee aes for @ physicist,’ ee ee f