This book has a twofold purpose: the first is to trace the development of cosmology, the study of the universe, and the second is to demonstrate the limitation of science. Dr. Peacock questions the idea that the universe is infinite, showing that science can answer the hows of the universe, but not the whys.

Annotation Science and faith hang in the balance for one atheistically inclined scientist, until his life is turned around by events he can only categorize as miraculous, which launches him into a powerful Christian ministry alongside his professional work. This book presents a personal memoir of events that have shaped the life of a practical scientist.

A review is presented of experiments examining the effects of blade tip gaps encountered in turbomachines and the methods by which the synthesised data are currently used in turbomachinery design and performance analysis. Data gained since the 1930's is subdivided for convenience into diffusing, or compressor-type flows, and accelerating, or turbine-type flows. There is a further sub-division into cascade and rotating machinery data. The overall trend university is that an increasing tip gap whose effect can reach over most or all of the blade height brings reduced overall performance of a turbomachine. Turbine data are in general more regular than the body of compressor data, possibly due in part to the enhanced effect of, usually, undefined boundary layers in diffusing flow. there is some evidence among the compressor and compressor cascade data that an optimum gap exists when the opposing effects of secondary flows, and tip leakage with rotor/wall relative movement tend to balance. Comment is made upon the prediction and design models published in the literature. (Author).