Robert von Mayer: Conservation of Energy in Thermodynamics

Date:

Introduction:

Mayer was the first person to state the law of energy conservation, one of the most fundamental tenets of modern-day physics. Mayer proposed energy conservation in a paper sent to Poggendorff’s Annalen der Physik. Due to insufficient training in Mathematics and Physics, the paper regrettably contained an error.

German physician and physicist Julius Robert von Mayer (1814–1878) made important advances in thermodynamics and energy conservation. Mayer, born in Heilbronn, Germany, on November 25, 1814, contributed to developing our current knowledge of energy conservation, a concept essential to many scientific fields. This article examines Mayer’s life, his scientific accomplishments, and the enduring effects of his research.

Annalen der Physik:

Albert Einstein and Mayer published his groundbreaking papers in 1905 in Annalen der Physik. These papers were respectively on: 

  • The photoelectric effect introduced the photon and Planck’s law, for which he won the Nobel Prize. 

Brownian Motion: 

I have a book penned by Albert Einstein in my home library on Brownian Motion. It’s valued at

over £1000 and was gifted by my PhD advisor’s late wife. He passed away, and I took home his entire book collection, which I still have. I told his wife about the book’s significance, but she didn’t understand it, so I took it home. The book is safely stored in the Physics section of my library. Mayer’s groundbreaking work laid the foundation for our understanding of the fundamental principles governing energy in various forms.

The Conservation of Energy:

Mayer’s conservation of energy principle development is one of his most significant scientific accomplishments. In 1842, he published a groundbreaking paper titled “Remarks on the Forces of Inorganic Nature,” introducing the energy conservation concept. The first law of thermodynamics, which states that the total energy in an isolated system remains constant, was derived from this idea.

Mayer’s groundbreaking discovery regarding energy conservation foreshadowed comparable research by Hermann von Helmholtz and James Joule. Mayer’s medical background played a role in his early work being partly recognized.

Theory of Relativity:

Albert’s third paper advanced the work of Galileo Galilei and Isaac Newton, while his fourth introduced the mass-energy relationshi

p. Any one of those papers would have made him a Physics “Superstar” overnight, but to have four such papers is beyond amazing. Despite not completing his doctoral studies, he wrote these papers under Mr. Mayer, a patent clerk third class. 

Conclusion:

In conclusion, Mayer’s groundbreaking work laid the foundation for our understanding of the fundamental principles governing energy in various forms. In my research, I use this equation depicted with the ideal gas constant, R, frequently when considering compressible flow. He revolutionized his time’s scientific paradigms by discovering energy conservation and its transformation into different forms. Mayer’s work on the mechanical equivalent of heat advanced our understanding of energy’s interplay.

Author

  • Dr Vasos Pavlika

    Dr Vasos Pavlika has a BSc in Physics and Mathematics, a MSc in Applied Mathematics, and a two-volume PhD thesis in Mathematical Physics (Magnetostatics and Fluid Dynamics).
    Vasos has 30+ years of experience in lecturing, he has been a Field Chair, Senior lecturer and is currently Associate Professor (Teaching) at University College London. Vasos has been involved with many HE institutions including: the University of East London, the University of Gloucestershire, the University of Westminster, SOAS University of London (both on-campus and online), Into City University, St George’s University of London, Goldsmiths College University of London (online and on-campus), the London School of Economics and Political Science, the Department for Continuing Education University of Cambridge and the Open University.

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