User:Maxwell's Daemon
From Wikipedia, the free encyclopedia
... if we conceive of a being whose faculties are so sharpened that he can follow every molecule in its course, such a being, whose attributes are as essentially finite as our own, would be able to do what is impossible to us. For we have seen that molecules in a vessel full of air at uniform temperature are moving with velocities by no means uniform, though the mean velocity of any great number of them, arbitrarily selected, is almost exactly uniform. Now let us suppose that such a vessel is divided into two portions, A and B, by a division in which there is a small hole, and that a being, who can see the individual molecules, opens and closes this hole, so as to allow only the swifter molecules to pass from A to B, and only the slower molecules to pass from B to A. He will thus, without expenditure of work, raise the temperature of B and lower that of A, in contradiction to the second law of thermodynamics.
[edit] Final Words
The Lord is my shepherd; I shall not want. He maketh me lie down in green pastures; He leadth me beside still waters. He restores my soul; He leads me in paths of righteousness for His name's sake. Even when I walk in the valley of darkness, I will fear no evil for You are with me; Your rod and Your staff-they comfort me. You set a table before me in the presence of my adversaries; You anointed my head with oil; my cup overflows. May only goodness and kindness pursue me all the days of my life, and I will dwell in the house of the Lord for length of days.