Breaking the Time Barrier
The Race to Build the First Time Machine
Chapter One: Pre-1895: The Dawn of Time
To run any race you must know the course. To build a time machine you need to know what time is, just as you cannot fly without knowing the nature of air and aerodynamics. But understanding time is easier said than done.
A celebrated Zen riddle asks, when a tree falls in the forest and nobody is around, does it make a sound? This riddle can probably be applied to time. Would there be such a thing as minutes or years if no human beings could experience their passage?
This seems to be a very odd suggestion, but the nature of time is very strange. Indeed, it is a real puzzle for science. It forms an inescapable part of our lives yet cannot easily be defined. It has fascinated mankind since we first learned to communicate, but there have been no clear answers about its nature. Indeed, some great minds have argued that its measurement is purely a human invention.
Greek philosopher Zeno showed the problem when he tried to define a small unit of distance. To catch a tardy tortoise you can easily r ... read full excerpt from: Breaking the Time Barrier: The Race to Build the First Time Machine ebook
