This is a book of time that you can read and understand. There are stories about time here. We experience time all the time, but we know very little about time: Why did the ancients choose to use base 12 and base 60 to calculate time? How was time kept during the Middle Ages? How is standard time determined? Can time be twisted? Does parallel time and space really exist? This little book, A Brief History of Time, will provide you with interesting and useful answers to these questions. On this journey through time, we will travel through the geological era, explore distant relatives of dinosaurs and humans, use the sun and moon to tell time, and understand the internal biological clock that controls the rhythm of our daily lives; we will also introduce the evolution of time technology, from the early calendars engraved on eagle wing bones to later quantum clocks; we will study how time accelerates and decelerates; we will enter the future through wormholes and black holes, span light years, and peer into parallel time and space. To help time travelers, "A Brief History of Time" will continue to provide some tips and secrets for traveling through the past and future.
