On the Conservation of Force: Enriched edition. Exploring the Foundations of Energy Conservation in 19th Century ScienceHermann von Helmholtz
On the Conservation of Force: Enriched edition. A Foundational Essay on Energy Transformation, Thermodynamics, and the Laws of Physical ScienceHermann von Helmholtz
On the Conservation of Force (Annotated): Enriched Edition. Energy Transformation, Thermodynamics, and the Mechanical Unity of NatureHermann von Helmholtz