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Benedictus Spinoza (Spanish: Baruj Espinosa) at birth Baruch Spinoza is a Dutch philosopher-rationalist of Jewish origin, a bright representative of the Age of Enlightenment.
Spinoza was born into a family of Portuguese Jews in Amsterdam, who converted to Christianity but returned to Judaism. As a young man, he was considered an outstanding Talmudic scholar and a promising religious scholar. But, inspired by the philosophical writings of René Descartes and Francis Bacon, the young philosopher soon fell outside the orthodox tradition because of his radical views. In 1656 he was severely excommunicated for heresy.
For the rest of his life, Spinoza spent his modest life grinding lenses and privately teaching philosophy, but he also wrote anonymously published philosophical treatises and secretly exchanged letters with many philosophically inclined luminaries of the wider European Enlightenment. Spinoza's only book, published in 1663 in Amsterdam under his own name, was Renati Des Cartes Principiorum Philosophiae Pars I, & II, More Geometrico demonstrate (Principles of Cartesian Philosophy). These principles served as a preparatory work for many metaphysical views in his most important treatise, Ethics (1677).
Benedict Spinoza defended the philosophical life from religious persecution and advocated a new, liberal, democratic regime to support that life. Although Spinoza was often persecuted as an atheist in his time, his writings played an important role in shaping philosophy, theology, and politics in the centuries to come. Of all the philosophers of the seventeenth century, Spinoza is one of the most relevant today.
Carlos Schwabe (born Émile Martin Charles Schwab) was a Swiss Symbolist painter and printmaker.
Jusepe de Ribera, a Spanish painter, etcher, and draughtsman, was a notable figure in the world of art, renowned for his distinct style and contribution to Castilian tenebrism. Born in 1591 in Játiva, near Valencia, Spain, Ribera's early life and artistic origins are somewhat shrouded in mystery, with no definitive documentation on his initial training. However, it's speculated that he might have started his artistic journey in Valencia.
Ribera's career took a significant turn when he moved to Italy, where he spent the majority of his professional life, predominantly in Naples, a Spanish territory at that time. He arrived in Naples around 1616 and soon established himself as an important artist in the city. His marriage to Caterina Azzolino, daughter of Sicilian painter Giovanni Bernardino Azzolino, in November of the same year, further solidified his connections in the Italian art scene.
Ribera was deeply influenced by Caravaggio and is often described as one of Caravaggio's followers. His early works displayed a marked tenebrism, characterized by stark chiaroscuro and a robust, scratchy handling of paint. However, Ribera's style evolved over time, moving away from this intense tenebrism to incorporate more color and softer modeling in his later works.
His body of work is diverse, including altarpieces, religious subjects, mythological themes, and portraits. Ribera had a penchant for depicting scenes of martyrdom with graphic realism, as seen in works like the celebrated "Martyrdom of St Bartholomew." Yet, he was also capable of expressing great tenderness, evident in paintings such as "The Adoration of the Shepherds." His secular subjects often depicted philosophers as beggars or vagabonds, adding a unique dimension to the Baroque repertoire.
Ribera's influence extended beyond Naples to Spain and the broader European art scene. He played a foundational role in fostering a respect for individual humanity in Spanish art, a trend that continued with artists like Velázquez and Goya. His works were widely exported to Spain and had a significant impact on both Italian and Spanish art. Ribera remains a highly respected figure in art history, and his works are featured in prominent museums and galleries worldwide, showcasing his enduring legacy in the realm of art and culture.
For art collectors and experts, Ribera's works represent a crucial chapter in the development of European art, particularly in the context of the Spanish Baroque and the evolution of tenebrism. His innovative approach to subject matter and technique continues to inspire and captivate audiences, making his works highly sought after in the world of art and antiques.
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Jack W. Aeby is an American environmental physicist and photographer.
Aeby attended the University of Nebraska and was one of the first civilian employees of the Manhattan Project beginning in 1942. He worked on the project in many areas, starting with human transportation, then he was assigned as the chemical warehouse superintendent.
On July 16, 1945, while at base camp with all the official photographic equipment, Aeby took the only well-exposed color photograph of the first detonation of a nuclear weapon at the Trinity Nuclear Test Site in New Mexico, for which he became famous. The rest of the film was destroyed by the explosion. At the time of the photograph, Aeby was a civilian working in the health physics group with Emilio Segre.
Jack Aeby continued to work at Los Alamos during the Crossroads tests and eventually witnessed nearly 100 nuclear explosions. He then returned to work at Los Alamos National Laboratory in the Department of Health Physics.
Isaac Newton was an English mathematician, physicist, astronomer, alchemist, theologian, and author (described in his time as a "natural philosopher"), widely recognised as one of the greatest mathematicians and physicists and among the most influential scientists of all time. He was a key figure in the philosophical revolution known as the Enlightenment. His book Philosophiæ Naturalis Principia Mathematica (Mathematical Principles of Natural Philosophy), first published in 1687, established classical mechanics. Newton also made seminal contributions to optics, and shares credit with German mathematician Gottfried Wilhelm Leibniz for developing infinitesimal calculus.
In the Principia, Newton formulated the laws of motion and universal gravitation that formed the dominant scientific viewpoint until it was superseded by the theory of relativity. Newton used his mathematical description of gravity to derive Kepler's laws of planetary motion, account for tides, the trajectories of comets, the precession of the equinoxes and other phenomena, eradicating doubt about the Solar System's heliocentricity. He demonstrated that the motion of objects on Earth and celestial bodies could be accounted for by the same principles. Newton's inference that the Earth is an oblate spheroid was later confirmed by the geodetic measurements of Maupertuis, La Condamine, and others, convincing most European scientists of the superiority of Newtonian mechanics over earlier systems.