The Order of Time

1. Time

 I read this book (Japanese version).
It' a very good book.
I recommend it.
・The Order of Time (Amazon)

The existence of time has often been discussed by physicists or philosophers from before.

2. Physics

 In the modern sciences, Sir Isaac Newton said that there was an absolute time.
But Albert Einstein said that time and space are relative in his theory (theory of relativity).

Quantum mechanics is also an important theory in physics.
What is the universe made from?
We also need to analyze the world from micro perspective.

3. Arrow of time

 In general, time flows from past to now, from now to future.
It doesn't flow back.
Arrow of time is always correct?
Some people use second law of thermodynamics to explain it.

Heat always flows from hotter to colder.
Entropy stays or increases, never decreases.
Is it always true?

4. Latest physics

 This book challenges to this common sense.
In Japan, superstring theory is famous.
He advocates loop quantum gravity.
To explain the universe, the variable of time isn't necessary on this theory.

So why do humans recognize time?
This book explains it.
Analyzing humans, he suggests the other universes which humans can't recognize.

5. Micro perspective and macro perspective

 It's important to use both micro perspective and macro perspective in sciences.
In both natural sciences and social sciences.
Reading this book, I remembered it

- To read this article in Japanese