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Paul Thumann was a German painter of the second half of the nineteenth and early twentieth centuries. He is known as a portrait painter and book illustrator.
Paul Thumann created drawings that decorated the works of famous authors such as Goethe, Tennyson, Chamisso, Gamerling and Heine. According to critics, his illustrations were characterized by elegance and subtlety of lines, expressiveness of human and poetic images. Stylistically, the master's works approached Art Nouveau, popular at the turn of the XIX-XX centuries. Thumann also created paintings on historical, religious and mythological themes.
Juana Inés de la Cruz or Juana of Asbaje, real name Juana Inés de Asbaje Ramírez de Santillananota, was a Mexican poet, scholar, and writer of the Latin American colonial period and the Spanish Baroque, and a Jerónimo nun.
Juana Ramírez was born into a poor family (Spanish father and Creole mother) and from an early age showed a burning thirst for knowledge and giftedness, but as a woman she was almost entirely self-taught. By her teens, she had already learned Greek logic and taught Latin to young children. She also learned Nahuatl, an Aztec language spoken in Central Mexico, and wrote several short poems in the language. At the age of 16, the girl was introduced to the court, and her intelligence impressed even Viceroy Antonio Sebastian de Toledo, Marquis de Mancera, and in 1664 he invited her to serve as maid of honor.
In 1669, at the age of 21, she took her tonsure at the Convent of Santa Paula of the Hieronymite Order in Mexico City, where she remained a recluse for the rest of her life. In the convent, Sister Juana enjoyed exceptional freedom: she continued to socialize with scholars and senior members of the court, amassed one of the largest private libraries in the New World, as well as a collection of musical and scientific instruments. Her plays in verse, poetry, and compositions for state and religious festivals were frequently and successfully performed at the palace.
Sister Juana was an outstanding representative of Spain's Golden Age: she was the last significant writer of the Latin American Baroque and the first great exponent of colonial Mexican culture. Sister Juana wrote sonnets, romances, and ballads, drawing on a vast store of classical, biblical, philosophical, and mythological sources. She also composed moral, satirical, and religious texts, as well as many poems praising courtiers, but she also defended women's right to education.
At the end of her life, due to pressure from religious dogmatists, Sister Juana had to sell her extensive library of some 4,000 volumes and return to strict reclusiveness. In 1695, the plague struck the convent and, while caring for her sisters, Juana died of the disease at about the age of forty-four.
Today, Juana Inés de la Cruz is a national icon of Mexico and Mexican identity as a prominent writer of the Spanish-American colonial period. The former convent where she lived is a center of higher education, and her image adorns Mexican currency.
René Descartes was a French philosopher, mathematician, and natural scientist who is considered the founder of modern philosophy.
Descartes was a very versatile scientist: besides numerous philosophical reflections, he wrote works on optics, meteorology and geometry. Contemporaries noted his extensive knowledge in many sciences. Descartes owns the famous saying "I think, therefore I exist" (best known in the Latin formulation "Cogito, ergo sum", although it was originally written in French: "Je pense, donc je suis").
He developed a metaphysical dualism that radically distinguished between mind, whose essence is thought, and matter, whose essence is extension in three dimensions. Descartes' metaphysics is rationalistic, based on the postulation of innate ideas of mind, matter, and God, but his physics and physiology, based on sense experience, are mechanistic and empirical.
Unlike his scientific predecessors, who felt a holy awe at the incomprehensibility of the divine essence of the universe, Descartes admired the ability of the human mind to understand the cosmos and to generate happiness itself, and rejected the view that human beings were inherently unhappy and sinful. He believed that it was inappropriate to pray to God to change the state of things and the world; it was much more productive to change oneself.
René Descartes was a French philosopher, mathematician, and natural scientist who is considered the founder of modern philosophy.
Descartes was a very versatile scientist: besides numerous philosophical reflections, he wrote works on optics, meteorology and geometry. Contemporaries noted his extensive knowledge in many sciences. Descartes owns the famous saying "I think, therefore I exist" (best known in the Latin formulation "Cogito, ergo sum", although it was originally written in French: "Je pense, donc je suis").
He developed a metaphysical dualism that radically distinguished between mind, whose essence is thought, and matter, whose essence is extension in three dimensions. Descartes' metaphysics is rationalistic, based on the postulation of innate ideas of mind, matter, and God, but his physics and physiology, based on sense experience, are mechanistic and empirical.
Unlike his scientific predecessors, who felt a holy awe at the incomprehensibility of the divine essence of the universe, Descartes admired the ability of the human mind to understand the cosmos and to generate happiness itself, and rejected the view that human beings were inherently unhappy and sinful. He believed that it was inappropriate to pray to God to change the state of things and the world; it was much more productive to change oneself.
Wangechi Mutu is a Kenyan-born American visual artist, known primarily for her painting, sculpture, film, and performance work.
Born in Kenya, she has lived and established her career in New York City for more than twenty years. Mutu's work has directed the female body as subject through collage painting, immersive installation, and live and video performance all the while exploring questions of self-image, gender constructs, cultural trauma, and environmental destruction, as well as notions of beauty and power.
Christiaan Huygens van Zeelhem was a Dutch mechanic, physicist, mathematician, inventor and astronomer who formulated the wave theory of light.
An admirer of Descartes, Huygens preferred to conduct new experiments himself to observe and formulate laws. In physics, he contributed to the development of the crucial Huygens-Fresnel principle, which applies to wave propagation. He also extensively investigated free fall. He experimentally proved the law of conservation of momentum. He derived the law of centrifugal force for uniform circular motion.
He also invented the pendulum clock, discovered centrifugal force and the true shape of Saturn's rings as well as its moon Titan. Huygens is considered the first theoretical physicist to use formulas in physics and one of the founders of theoretical mechanics and probability theory.
Marcello Malpighi was an Italian biologist, anatomist and physician, professor of logic, theoretical and practical medicine, and a member of the Royal Society of London.
After graduating from the University of Bologna with the degree of Doctor of Medicine and Philosophy, Malpighi soon took up a professorship there, then taught at the universities of Pisa and Messina. At the same time as teaching, he conducted biological research with his microscopes, which was an innovation in those days. In 1661, he identified and described the pulmonary and capillary network connecting small arteries to small veins, one of the most important discoveries in the history of science. He also isolated taste buds and regarded them as nerve endings, described the minute structure of the brain, the optic nerve, and in 1666 was the first to see red blood cells and attribute to them the color of blood. His treatise De polypo cordis (1666) explained the composition of blood and how it coagulates.
During his medical practice, Malpighi studied microscopic sections of the liver, brain, spleen, kidneys, and the bone and deep layers of skin that now bear his name. In his landmark 1673 work on the embryology of the chicken, the scientist concluded that the embryo forms in the egg after fertilization. In 1675-79 he also made extensive comparative studies of the microscopic anatomy of several different plants and saw analogies between plant and animal organisms. The Royal Society of London published two volumes of his botanical and zoological works in 1675 and 1679. His Anatome Plantarum is richly decorated with engravings by Robert White.
After his house was burned and looted by his adversaries, in 1691 Pope Innocent XII invited him to Rome as papal personal physician, which was a great honor.
Malpighi can be considered the first histologist. For almost 40 years he used the microscope to describe the main types of plant and animal structures and thus marked for future generations of biologists the main directions of research in botany, embryology, human anatomy and pathology. The conflict between ancient ideas and modern discoveries continued throughout the seventeenth century. Malpighi was convinced that microscopic anatomy, by showing the minute structure of living things, questioned the value of the old medicine. He laid the anatomical foundation for the subsequent understanding of human physiological exchanges.
August Sander was a German portrait and documentary photographer. Sander's first book Face of our Time (German: Antlitz der Zeit) was published in 1929. Sander has been described as "the most important German portrait photographer of the early twentieth century".
