A metaphysical conclusion is either a false conclusion or a concealed experimental — Hermann von Helmholtz
Whoever, in the pursuit of science, seeks after immediate practical utility, may — Hermann von Helmholtz
Isolated facts and experiments have in themselves no value, however great their — Hermann von Helmholtz
You all know how powerful and varied are the effects of which steam engines are capable — Hermann von Helmholtz
Now, the external work of man is of the most varied kind as regards the force or ease — Hermann von Helmholtz
Not that I wish by any means to deny, that the mental life of individuals and — Hermann von Helmholtz
Iron which is brought near a spiral of copper wire, traversed by an electrical current — Hermann von Helmholtz
I then endeavoured to show that it is more especially in the thorough conformity with — Hermann von Helmholtz
Heat can also be produced by the impact of imperfectly elastic bodies as well as by friction. — Hermann von Helmholtz
Windmills, which are used in the great plains of holland and north germany to supply — Hermann von Helmholtz
What appeared to the earlier physicists to be the constant quantity of heat is nothing — Hermann von Helmholtz
The older view of the nature of heat was that it is a substance, very fine and imponderable indeed — Hermann von Helmholtz
Reason we call that faculty innate in us of discovering laws and applying them with thought. — Hermann von Helmholtz
Each individual fact, taken by itself, can indeed arouse our curiosity or our astonishment — Hermann von Helmholtz
A raised weight can produce work, but in doing so it must necessarily sink from its height — Hermann von Helmholtz
A moving body whose motion was not retarded by any resisting force would continue to move to all eternity. — Hermann von Helmholtz