| | Nat' Academies Press, Biographical Memoirs V.75 (1998) |
 | | During the 1920s Robert Millikan made extensive measurements of the ionization produced by the mysterious radiation, which he renamed cosmic rays, and he proposed the theory that they were photons created as the birth cries of the elements formed by the fusion of hydrogen atoms in interstellar space. |
| | He wrote (Rossi's translation from the original Italian): The frequency of the coincidences recorded with the counters at a distance from one another, shown in the tables as “chance coincidences” appears to be greater than would have been predicted on the basis of the resolving power of the coincidence circuit. |
| | Rossi suggested that a venture into X-ray astronomy might prove very fruitful, not because of any theoretical predictions, but because nothing was known and there was the possibility for major new discoveries.5 Giacconi initiated a study of the theoretical and experimental possibilities for X-ray astronomy. |
| books.nap.edu /books/0309062950/html/310.html (4846 words) |
