Science t-shirts | Maxwell's Demon short-sleeved baseball t-shirt
This short-sleeved baseball-style Maxwell's Demon short-sleeved baseball-style features the slogan "Maxwell's Demon, messing up your entropy since 1867" and an original depiction of the concept of Maxwell's Demon.
In 1867, James Clerk Maxwell created a thought experiment to "show that the Second Law Of Thermodynamics has only a statistical certainty" and that there is a way to hypothetically violate that law. This thought experiment became known as "Maxwells Demon".
The Second Law Of Thermodynamics states that entropy of a closed system never decreases.
Maxwell postulated that if we have a dual-chamber closed system with a door between the two, a hypothetical "being" could open and close the door at specific moments, allowing slow moving particles to collect in one chamber, and fast moving particles in the other, thus decreasing entropy.
Maxwell himself said, "... 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."
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