I was resting and suddenly the 2nd law of thermodynamics came into my mind.  As is my wont I had to go to Google to clarify this law – to make it comprehensible to a non-scientific mind. Really it is quite simple. If I set light to my bonfire it will rage with a fierce heat and then it will subside and eventually even the ashes will go cold. But why is that? Why does the fire … [Read more...]