What's the Time

Is it even possible?!
To travel in time?
If you don't know how to explain to your kids, your friends or your students about what Time means, then in this book you will find the answers.
This book is for every age, anyone who can read and who is interested in what time is,will be the main audience.
It explains why people think time is relative, what is time, and gives the audience examples of different
devices to "measure" time, also it explains why time travel is not possible.