But we have reason to think that the annihilation of work is no less a physical impossibility than its creation, that is, than perpetual motion.

In the vestibule of the Manchester Town Hall are placed two life-sized marble statues facing each other. One of these is that of John Dalton … the other that of James Prescott Joule. … Thus...

To Nature nothing can be added; from Nature nothing can be taken away; the sum of her energies is constant, and the utmost man can do in the pursuit of physical truth, or in the...

Thought isn’t a form of energy. So how on Earth can it change material processes? That question has still not been answered.