Fluctuations in the Primordial Fireball in Nature 215 No. 5106 pp. 1155-1156, September 9, 1967 (Silk) [First Tentative Sightings of CMB Anistropies] WITH Time required for Judgements of Numerical Inequality, pp. 1519-1520 (Moyer and Landauer)

London: Macmillan & Sons, 1967. 1st Edition. FIRST EDITION, FULL VOLUME. Shortly after Wilkinson and Partridge published the first tentative sightings of CMB anistropies, Joseph Silk, in this paper, demonstrated that only very large density irregularities in the early universe (larger than 1,013 solar masses) would survive and be visible in the CMB. We separately offer the Wilkinson & Partridge paper as well as the related Rees & Sciama paper. The Moyer and Landauer influential paper explores the process by which numerical judgements are made.

SILK: The Gruber Foundation, writing about Silk in their Cosmology Prize Laureate Profile, noted the following: ""The validation of the Big Bang interpretation of the universe arrived, in 1965, just as a 22-year-old Joseph Silk was entering the field of cosmology. The discovery came in the form of an observation of microwave radiation suffusing all of space in every direction. This cosmic microwave background, or CMB, matched a theoretical prediction of what temperature a universe born in a Big Bang would have reached today if the universe had been expanding and cooling for 13 billion years. The radiation, however, was featureless—yet features are what a CMB would need if it's going to grow into a universe full of galaxies.

"Presumably more precise observations would detect those irregularities, and in 1967 and 1968 [in a separate paper], Silk calculate that when observations of the CMB attained a far more subtle level of precision, those features would emerge in the form of infinitesimal temperature fluctuations" (Gruber Foundation Cosmology Prize Laureate Profile).

MOYER & LANDAUER: Explores the nature of the process involved in adults' choice of a larger number by examining the time which the process requires. They suggest that this process is analogous to the process involved in judgments of inequality for physical continua. CONDITION & DETAILS: London: Macmillian & Sons. Ex-libris with very minimal interior markings and ghosting from the removal of a spine label. Complete volume bound in bright red cloth with red buckram at the spine. Tightly bound and very clean. The interior is bright and exceptionally clean throughout.