TY - BOOK AU - Sachs,Mendel TI - Physics of the universe SN - 1848165323 (hardcover) U1 - 523.1 22 PY - 0000///د.ت CY - London PB - Imperial College Press KW - Cosmology KW - General relativity (Physics) KW - Unified field theories N1 - Includes bibliographical references and index; Physics of the universe -- The language of cosmology: the mathematical basis of general relativity -- A unified field theory in general relativity: extension from the tensor to the quaternion language -- An oscillating, spiral universe cosmology -- Dark matter -- Concluding remarks -- Philosophical considerations ER -