During this publication, fifteen authors from a large spectrum of disciplines (ranging from the usual sciences to the humanities) supply tests of how time enters their paintings, the definition and makes use of of time that experience proved most efficient or problematical, and the teachings their topics can provide for our figuring out of time past the study room and laboratory partitions. The authors have attempted, with out sacrificing analytical rigour, to make their contribution obtainable to a cross-disciplinary readership. each one bankruptcy studies time's previous and current program in its respective box, considers the sensible and logical difficulties that stay, and assesses the equipment researchers are utilizing to flee or get to the bottom of them. specific cognizance is paid to ways that the technical remedy of time, for problem-solving and model-building round particular phenomena, name on - or conflict with - our intuitive perceptions of what time is and does. The spans of time thought of diversity from the fractions of seconds it takes risky debris to collapse to the hundreds of thousands of years required for one species to provide method to one other. like any critical conceptual phrases, time is known on numerous degrees. by way of inviting enter from a vast variety of disciplines, the publication goals to supply a fuller realizing of these degrees, and of the typical flooring that lurks at their base. a lot contract emerges - not just at the nature of the issues time offers to trendy highbrow proposal, but in addition at the clues that fresh discoveries might supply in the direction of attainable options.