Rudolph Julius Emmanuel Clausius
(1822 - 1888)

German physicist.

Science Quotes by Rudolph Julius Emmanuel Clausius (3)

Heat can never pass from a colder to a warmer body without some other change, connected therewith, occurring at the same time.
— Rudolph Julius Emmanuel Clausius
'On a Modified Form of the Second Fundamental Theorem in the Mechanical Theory of Heat', Philosophical Magazine, 1856, 12, 86.
See also:  |  Heat (9)  |  Thermodynamics (5)

In all cases where work is produced by heat, a quantity of heat proportional to the work done is expended; and inversely, by the expenditure of a like quantity of work, the same amount of heat may be produced.
— Rudolph Julius Emmanuel Clausius
'On the Moving Force of Heat, and the Laws regarding the Nature of Heat itself which are deducible therefrom', Philosophical Magazine, 1851, 2, 4.
See also:  |  Heat (9)  |  Thermodynamics (5)

The fundamental laws of the universe which correspond to the two fundamental theorems of the mechanical theory of heat.
1. The energy of the universe is constant.
2. The entropy of the universe tends to a maximum.
— Rudolph Julius Emmanuel Clausius
The Mechanical Theory of Heat (1867), 365.
See also:  |  Entropy (10)  |  Heat (9)  |  Thermodynamics (5)  |  Universe (36)



Carl Sagan Thumbnail In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time something like that happened in politics or religion. (1987) -- Carl Sagan
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