Wyniki wyszukiwania:

An impressive characteristic of Dudley Shapere's studies in the philosophy of the sciences has been his dogged reasonableness. He sorts things out, with logical care and mastery of the materials, and with an epistemological curiosity for the historical happenings which is both critical and respectful. Science changes, and the philosopher had better not link philosophical standards too tightly to either the latest orthodox or the provocative up- start in scientific fashions; and yet, as critic, the philosopher must not only master the sciences but also explicate their meanings, not those of a...

During the last few years, considerable interest has been focused on the phase that waves accumulate when the equations governing the waves vary slowly. The recent flurry of activity was set off by a paper by Michael Berry, where it was found that the adiabatic evolution of energy eigenfunctions in quantum mechanics contains a phase of geometric origin (now known as Berry's phase') in addition to the usual dynamical phase derived from Schr dinger's equation. This observation, though basically elementary, seems to be quite profound. Phases with similar mathematical origins have been identified...