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...#Hermann Von Helmholtz
Each individual fact, taken by itself, can indeed arouse our curiosity or our astonishment, or...#Hermann Von Helmholtz
But heat can also be produced by the friction of liquids, in which there could...#Hermann Von Helmholtz
A raised weight can produce work, but in doing so it must necessarily sink from...#Hermann Von Helmholtz
A moving body whose motion was not retarded by any resisting force would continue to...#Hermann Von Helmholtz
You all know how powerful and varied are the effects of which steam engines are...#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
