Louis de Broglie was a French physicist who is best known for his groundbreaking contributions to quantum theory. Born on August 15, 1892, he introduced the concept of wave-particle duality, which suggests that particles such as electrons exhibit both wave-like and particle-like properties.

As of my last knowledge update in October 2023, there is no widely known figure, concept, or term specifically recognized as "Magda Ericson." It's possible that it could refer to a private individual, a fictional character, or a less prominent figure not covered in mainstream information sources.

Gerhard Schwehm is a notable figure in the field of astronomy, particularly known for his contributions to space exploration and planetary science. He has been involved in significant projects within the European Space Agency (ESA), including missions related to the study of asteroids and comets. Schwehm has held positions that focus on the management and scientific direction of various space missions, including the Deep Impact mission, which studied the comet Tempel 1.

Gustav Mie was a German physicist, best known for his work in the field of electromagnetic theory and optics, particularly for developing the Mie theory. Mie theory describes how light is scattered by small particles, specifically spherical particles, and it provides a mathematical framework for understanding light scattering in various media.

The Göttingen Eighteen refers to a group of 18 professors from the University of Göttingen in Germany who signed a public statement in 2008 opposing certain aspects of the German government's proposed reforms to higher education, particularly concerning funding and the direction of academic research. Their statement emphasized the importance of academic freedom, the integrity of research, and the potential negative consequences of the reforms on the educational environment.

Michel Della Negra is not widely recognized in public knowledge or historical records as of my last update in October 2023. It's possible that he could be a contemporary figure in a specific field, such as art, academia, business, or other areas that may not have extensive coverage.

Pierre Binétruy is a French physicist known for his contributions to the field of theoretical physics, particularly in cosmology and particle physics. He has worked on topics related to gravitational theories, the early universe, and the implications of various physical theories on cosmological models. Binétruy is also noted for his research on supersymmetry and extra dimensions. His work often involves exploring the connections between fundamental physics and cosmological observations.

Raimond Castaing was a prominent French scientist known for his contributions to the field of nuclear physics and particle physics. He is recognized for his research on the interactions of particles and his work on various experiments in these areas. Castaing’s work often involved collaboration with other physicists and participation in large scientific projects, contributing to advancements in understanding fundamental particles and forces.

Richard Kerner is a name that may refer to different individuals, but it is not widely recognized in mainstream literature or popular culture as of my last knowledge update in October 2021. It's possible that he could be associated with a particular field, such as academia, literature, or science.

Yvette Cauchois was a prominent French physicist known for her contributions to the field of spectroscopy. She is particularly recognized for her work on X-ray diffraction and her investigations into the characteristics of various materials using X-ray techniques. Cauchois' research played a significant role in enhancing the understanding of atomic structures and interactions. Throughout her career, she authored numerous papers and was influential in the development of experimental methods in her field.

Élisabeth Guazzelli is not a widely recognized public figure or widely documented personality as of my last knowledge update in October 2023. If she is related to a specific field such as academia, arts, sciences, or any notable event post-2023, I may not have that information available. Could you provide more context or detail about who or what Élisabeth Guazzelli refers to?

Achim Richter is not a widely recognized name in popular culture or academia as of my last knowledge update in October 2023. It could refer to a specific individual, potentially in a professional or academic context, but without more information, it's difficult to provide a specific answer. There could also be other contexts, such as a place or a business.

Adolf Bestelmeyer (1883–1943) was a German architect known for his work in the early 20th century. He is often associated with the architectural style of the time, which included elements of expressionism and modernism. Bestelmeyer is particularly noted for his contribution to significant buildings and urban planning projects in Germany. He is best recognized for his design of educational institutions, public buildings, and residential complexes, often characterized by innovative structural designs and a distinctive use of materials.

Adolf Goetzberger is a notable figure in the field of solar energy research and is particularly known for his contributions to photovoltaic technology. He has authored numerous publications and has been involved in various advancements in the solar energy sector. His work includes research on solar cells, their efficiencies, and the integration of photovoltaics into buildings.

Adolf Kratzer is likely a reference to a well-known philosopher in the field of linguistics and philosophy, particularly known for his work on modal logic, specifically the semantics of modality (necessity and possibility) and the relationship between language and metaphysics. Kratzer's influential ideas include the concept of "modal semantics," where she discusses how meaning in language can express modality through different contexts.

Alfons Bühl does not appear to be a widely recognized individual, concept, or entity in public knowledge as of my last update in October 2023. It's possible that he is a private individual, a figure in a specific niche, or a new or emerging topic that has not yet gained broader recognition.

Alfred Hübler could refer to different individuals depending on the context, as it's not a widely recognized name in popular culture or public figures. If you're referring to a specific Alfred Hübler, please provide more context, such as their profession, field, or any notable achievements. This will help me provide a more accurate and relevant response.

Arnold Eucken was a German economist and a prominent figure in the field of economic theory in the 20th century. He was born on January 21, 1880, and died on March 24, 1950. Eucken is particularly known for his contributions to the development of the concept of "ordoliberalism," which emphasizes the role of the state in ensuring that the market economy operates efficiently and fairly.

Arnold Flammersfeld does not appear to be a widely recognized figure in public records or well-known literature as of my last knowledge update in October 2023. It's possible that the name could belong to a private individual, a lesser-known person, or perhaps it is misspelled or confused with another name.

Arthur Wehnelt was a German physicist known for his contributions to the field of physics, particularly in the study of electron optics and the development of devices that manipulate electron beams. One of his notable inventions is the Wehnelt cylinder, which is a component used in electron guns to focus and control electron beams. The Wehnelt cylinder is a crucial element in various applications, including electron microscopes and cathode ray tubes, where precise electron beam control is essential for imaging and display technologies.