Two-Time Physics: The Unified View from Higher Dimensional Space and Time -- A First Look at the Known Universe -- Structure of Matter and Fundamental Forces -- What Is Space–Time? -- Symmetry and Perspective -- Why Higher Space or Time Dimensions? -- The Role of Extra Space Dimensions in String Theory -- Two-Time Physics -- Evidence of 4 + 2 as Subtle Effects in 3 + 1 Dimensions -- Fundamental Universe as a Shadow from 4 + 2 Dimensions -- Current Status of 2T-Physics and Future Directions -- Further Reading -- Extra Dimensions of Space -- The Popular View of Extra Dimensions -- Extra Material: The Equations Behind the Words.

"…The Multiversal book series is equally unique, providing book-length extensions of the lectures with enough additional depth for those who truly want to explore these fields, while also providing the kind of clarity that is appropriate for interested lay people to grasp the general principles involved." -Lawrence M. Krauss The aim of this book is to continue to raise public awareness in the exciting field of theoretical physics and cosmology. It covers the latest theories at a level not weighed down by highly mathematical equations. Each chapter is written by a leading expert who is presently researching and lecturing on the topics. Extra Dimensions in Space and Time has two main features that differentiate it from all other books written about the topic: The first feature is the coverage of extra dimensions in time (Two-Time physics), which has not been covered in earlier books. All other books on the topic focus on extra spatial dimensions. The second feature deals with level of presentation. The material is presented in a non-technical language followed by additional technical sections (in the form of appendices or footnotes) that explain the basic equations and formulas in the theories. This feature is very attractive to readers who want to learn more about the theories involved beyond the basic description for a layperson. Topics Covered: Structure of matter & fundamental forces Einstein’s relativistic view of space-time Equivalence Principle and General Relativity Symmetry and perspective Why higher space or time dimensions? Extra space dimensions and String Theory Einstein and the Fourth Dimension Traditional Extra Dimensions String Theory and Branes Warped Extra Dimensions How to Look For Extra Dimensions? Extra Dimensions: The equations behind the words Two Time Physics Current status of 2T-Physics and future directions Multiversal Journeys™ is a trademark of Farzad Nekoogar and Multiversal Journeys, a 501(c)(3) nonprofit organization.