Krotkov G (4 results)

Pamphlet. Condition: Very Good. Vol 54, Series 3, Sec 5, pp. 1-14, Illus, Extracted from orig vol, thus begins with title page, trimmed & stapled pamphlet, else VG.

Pamphlet. Condition: Very Good. Vol 2, Ser 4, Sec 3, pp. 205-215, Illus, Extracted from orig vol, thus begins with title page, trimmed & stapled pamphlet, else VG.

Sugars in white ash and lilac (S. A. Plant Physiol. Vol. 40, No. 4) 1965. S. 740 - 747. m. zahlr. Abb. geklammert -2) Sonderabdruck.

Soft cover. Condition: Fine. P. G. Roll, R. Krotkov and R. H. Dicke. "The Equivalence of Inertial and Passive Gravitational Mass'' in Annals of Physics 26 No. 3 pp. 442-517, February 20, 1964, in the issue of pp (307)-524, the complete issue offered. Original wrappers, expertly rebacked. Fine copy housed in a new, custom-made calf folding pamphlet case, with gilt-stamped spine. [++] "The mass of a body is included in the equations of motion and gravity, and it has been assumed since the time of Newton that these two masses (inertial and gravitational) are one and the same. However, this assumption was not tested by experiment until Hungarian physicist Loránd Eötvös did so in 1885 and then again (with greater precision) in 1919. This was sufficiently accurate for Albert Einstein to use this equivalency in his formulation of general relativity. More than 40 years later, P. G. Roll, R. Krotkov and R. H. Dicke conducted a similar experiment with much greater precision to confirm the equivalence to within one in 100 billion. They published their results in the issue in this case [the paper offered here, which has been cited 800+ times]."--David Wenner, The History of Physics. [++] "Torsion balance measurements of the difference in ratios of gravitational to inertial mass for different materials have been carried out, confirming to higher precision the null results obtained 60 years ago by Eötvös and assumed by Einstein as the Principle of Equivalence upon which the General Theory of Relativity is founded.The importance of the Eötvös experiment to contemporary gravitational theories is discussed, and the earlier measurements of Eötvös and J. Renner are examined critically."--Abstract [++] Dicke writes about the ancinet and recent history of experimentation in "The Equivalence of Inertial Gravitation" (1964) full text at SAO/NASA Astrophysics Data System (ADS). Dicke suggests (tongue-in-cheek) a very very long historical background of the experiment, perhaps leading back to the paleolithic.…