Konstantinos Negris is not a widely recognized public figure or concept in mainstream knowledge as of my last update in October 2023. It's possible that he may be a private individual, a professional in a specific field, or someone who has gained prominence more recently.

Timoleon Argyropoulos was a prominent Greek philosopher and educator, notable for his contributions during the Renaissance period, particularly in the 15th century. He was born in Greece, but later moved to Italy, where he became involved in the intellectual and cultural revival of classical knowledge. Argyropoulos is best known for his work in translating and teaching ancient Greek texts, including works by philosophers like Plato and Aristotle.

Philipp Lenard (1862–1947) was a German physicist known for his work in experimental physics, particularly in the fields of cathode rays and photoelectric effect. He was awarded the Nobel Prize in Physics in 1905 for his investigations into the properties of cathode rays, which were among the first experiments to explore the behavior of electrons. Lenard's research contributed to the understanding of the nature of light and radiation.

Ányos Jedlik (1800–1895) was a Hungarian physicist, inventor, and Benedictine monk known for his contributions to the fields of electromagnetism and electricity. He is particularly noted for his work on electric motors and the development of a precursor to the dynamo, which generates electricity through mechanical means. Jedlik also conducted research in optics and the theory of waves, and he played a significant role in the advancement of education in Hungary.

Debendra Mohan Bose (1898–1986) was a prominent Indian researcher and engineer known for his contributions to the fields of electronics and telecommunications. He played a significant role in the development of various technologies and was involved in academic research and industrial applications. In addition to his technical work, Bose was known for his contributions to education and for promoting scientific research in India. His legacy includes a focus on innovation and the promotion of engineering practices in the country.

Hemendranath Tagore (1859–1915) was a prominent Bengali artist, musician, and painter who belonged to the famous Tagore family of Kolkata. He was the younger brother of the illustrious poet Rabindranath Tagore, who was awarded the Nobel Prize in Literature in 1913. Hemendranath was known for his contributions to various forms of art.

Shah Muhammad Sulaiman, often referred to simply as Sulaiman, was a prominent figure in 20th-century India, known for his contributions to law and society. He served as the Chief Justice of the Allahabad High Court and was recognized for his judicial reforms and contributions to legal education.

Abraham Klein (born April 11, 1932) is a notable theoretical physicist known for his contributions to quantum field theory and the study of particle physics. He has made significant contributions to the understanding of hadronic interactions and is recognized for his work on the mathematical foundations of quantum mechanics. Klein is also known for his involvement in the development of various theoretical frameworks and models that describe fundamental forces and particles. He has published numerous papers and collaborated with many prominent physicists throughout his career.

Adam Frank can refer to different individuals, so the context in which you're asking is important. Here are a few notable people named Adam Frank: 1. **Adam Frank (Astrophysicist)**: He is a well-known astrophysicist, author, and professor, recognized for his work in the fields of astrophysics and science communication. He often speaks about topics such as the potential for extraterrestrial life and the future of civilization.

John Joly (1857–1933) was an Irish physicist and a pioneer in the field of geology and radiology. He is best known for his work in developing methods for measuring radioactivity and for his contributions to scientific understanding of geological time. One of Joly's notable contributions was the development of the Joly water clock, which used the expansion and contraction of water to measure time, and he also proposed techniques for determining the ages of geological materials based on radioactive decay.

Thomas Preston was a notable scientist known for his contributions to the field of physics, particularly in the area of atomic and molecular structures. His work focused on theoretical concepts that laid the groundwork for understanding chemical bonding and interactions at the atomic level. He is perhaps best known for his research connecting quantum mechanics with traditional chemistry, which helped in the development of theories regarding electron configurations and the periodic table of elements.

August Witkowski may refer to various individuals or contexts, but there isn't a widely known figure or subject by that name up to my last knowledge update in October 2023. If you have more specific information or a context in which August Witkowski is relevant—such as a field (like sports, literature, or science)—I might be able to provide more relevant information.

Karol Olszewski (1846–1915) was a notable Polish chemist, recognized primarily for his contributions to the field of low-temperature physics and for being one of the pioneers of cryogenics. He was a key figure in the liquefaction of oxygen and other gases, which laid the groundwork for advancements in both scientific research and various industrial applications.

Thomas Romney Robinson (1792–1882) was an important figure in the fields of astronomy and meteorology, particularly known for his contributions in the 19th century in Ireland. He served as the director of the Armagh Observatory in Northern Ireland from 1836 until his death in 1882. Robinson was a prominent astronomer and made significant improvements to the observatory's telescope equipment, enhancing its capabilities for observing celestial bodies.

Angelo Battelli is not a widely recognized term or figure in popular culture, history, or current events as of my last knowledge update in October 2023. It's possible that Angelo Battelli could refer to a specific individual, perhaps someone known in a niche community, local context, or specialized field. Without more specific context, it's difficult to provide detailed information.

Macedonio Melloni (1798–1854) was an Italian physicist known for his significant contributions to the field of thermodynamics and optics. He is particularly recognized for his work on infrared radiation and for being one of the pioneers in studying the properties of thermal radiation. Melloni conducted experiments that demonstrated the existence of infrared rays, using a device that he designed to measure thermal radiation and its effects.

The Schur product theorem is a result in linear algebra related to matrices and their positive semi-definiteness. It establishes a relationship between the Schur product (or Hadamard product) of two matrices and the positive semi-definiteness of those matrices.

Gabrio Piola was an influential Italian mathematician and engineer known for his contributions to the fields of mechanics and continuum mechanics. He is particularly noted for the development of the Piola-Kirchhoff stress measures in continuum mechanics, which are used to describe the stress state in deformable bodies. The Piola-Kirchhoff stress tensors are important in the analysis of materials and structures under deformation and are particularly useful in finite element analysis.

Galileo Ferraris (1847-1897) was an Italian physicist and engineer, best known for his contributions to the development of alternating current (AC) electrical systems and the induction motor. He made significant advancements in the understanding of electromagnetism and electromagnetic fields. Ferraris is particularly noted for inventing the induction motor in 1885, which operates on the principles of electromagnetic induction.

Giovanni Caselli was an Italian inventor and engineer best known for his contributions to the early development of the telegraph and photography. He is most notably recognized for inventing the "pantelegraph," a device that could transmit written documents over long distances using telegraph lines, effectively allowing for the remote copying of images and text. Caselli's work in telecommunications was significant in the 19th century, as it helped lay the groundwork for future advancements in communication technology.