Michio Kaku and Morgan Freeman Explain Entropy

I am grateful to my colleague A Tomé for sending me these links herein posted

"I know all about entropy," said Adell, standing on his dignity.
"The hell you do."
"I know as much as you do."
"Then you know everything's got to run down someday."
"All right. Who says they won't?"
The Last Question by Isaac Asimov © 1956

Boltzmann’s Entropy Equation
The entropy and the number of microstates of a specific system are connected through the Boltzmann’s entropy equation:
S=k*lnW
Where k – is the Boltzmann’s constant which is equal to 1.38062e-23 J/K
W – is the number of ways of arranging the molecules (or microstates)
For a closed system, entropy can only increase, it can never decrease. For an irreversible process the entropy increases. For a reversible process the change in entropy is zero.
In more technical terms, entropy is a specific value that measures how much energy is released in a system when it settles into the lowest potential energy. Entropy assesses the amount of disorder, understood as a change in heat, from an earlier point to a later point in time. This must happen in a "closed" system, where no energy leaks in or out. Theoretically, that can be measured, but practically it is very difficult to create an absolutely closed scenario
http://www.wisegeek.com/what-is-entropy.htm


Video:
Michio Kaku and Morgan Freeman Explain Entropy
Entropy
What is Entropy?
Isaac Asimov - The Last Question


 The Honourable Schoolboy