Johannes Stark
Johannes Stark
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Full Name and Common Aliases
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Johannes Stark was a German physicist born as Johann Baptist Friedrich Stark on April 15, 1874.
Birth and Death Dates
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Born: April 15, 1874
Died: June 21, 1957
Nationality and Profession(s)
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Nationality: German
Profession: Physicist
Johannes Stark was a renowned German physicist who made significant contributions to the field of physics. He is best known for his work on the Stark effect, which is an important concept in atomic physics.
Early Life and Background
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Stark was born in Schickenhof, Kingdom of Bavaria, German Empire (now part of modern-day Germany) to a family of farmers. His early life was marked by a strong interest in science and mathematics. He studied at the University of Munich and later at the Technical University of Munich, where he graduated with a degree in electrical engineering.
Major Accomplishments
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Stark's work on the Stark effect led to his Nobel Prize in Physics in 1919. The Stark effect is a phenomenon where the energy levels of an atom are affected by an external electric field. Stark's research was groundbreaking and paved the way for further studies in atomic physics.
Notable Works or Actions
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Stark made significant contributions to various fields, including:
The Stark Effect: His discovery of the effect that bears his name revolutionized our understanding of atomic physics.
Quantum Mechanics: Stark's work laid the foundation for quantum mechanics and its applications in modern physics.
* Academic Career: Stark held various academic positions throughout his career, including a professorship at the University of Aachen.
Impact and Legacy
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Johannes Stark's impact on science is immeasurable. His discovery of the Stark effect has had far-reaching implications for our understanding of atomic physics. He was awarded numerous honors, including the Nobel Prize in Physics, and his work continues to influence research in the field of physics today.
Why They Are Widely Quoted or Remembered
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Stark is widely quoted and remembered for his contributions to physics, particularly the Stark effect. His groundbreaking research has left an indelible mark on the scientific community, and his legacy continues to inspire scientists and researchers around the world.
Quotes by Johannes Stark
Johannes Stark's insights on:
Along a series of lines running from longer to shorter wavelengths the effect of the electric field becomes greater as the serial numbers increase – that is, as the wavelength decreases.
The removal of an electron from the surface of an atom – that is, the ionization of the atom – means a fundamental structural change in its surface layer.
For under certain conditions the chemical atoms emit light waves of a specific length or oscillation frequency – their familiar characteristic spectra – and these can come in the form of electromagnetic waves only from accelerated electric quanta.
The most common and most important result of them is that the nature and size of the effect on corresponding series of different elements are largely an expression of the peculiarity of their atomic structure – or, at least, of the structure of the surface.
By recognizing that the chemical atom is composed of single separable electric quanta, humanity has taken a great step forward in the investigation of the natural world.
An external electric field, meeting it and passing through it, affects the negative as much as the positive quanta of the atom, and pushes the former to one side, and the latter in the other direction.
At the head of these new discoveries and insights comes the establishment of the facts that electricity is composed of discrete particles of equal size, or quanta, and that light is an electromagnetic wave motion.
For under certain conditions the chemical atoms emit light waves of a specific length or oscillation frequency - their familiar characteristic spectra - and these can come in the form of electromagnetic waves only from accelerated electric quanta.
If the experimental physicist has already done a great deal of work in this field, nevertheless the theoretical physicist has still hardly begun to evaluate the experimental material which may lead him to conclusions about the structure of the atom.
In my view the structure of the whole atom was that of an individual, with all its parts interconnected, and the emission of a spectral line appeared to me to be the result of the coherence and co-operation of several electric quanta.