Where base units come from and how they are related to each other? The second, the metre and other base units...

 We can only count what is, not what is not. Or rather, we count what it appears to be, and not count what it...

Irreversibility is the basic principle of the Universe. It's impossible to get back a reverse motion exactly....

At the beginning of the Universe, there were no elements as we know them today. It had taken some time for...