Inventors 17th century
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.
Athanasius Kircher was a German scholar, inventor, professor of mathematics and oriental studies, and a friar of the Jesuit order.
Kircher knew Greek and Hebrew, did scientific and humanities research in Germany, and was ordained in Mainz in 1628. During the Thirty Years' War he was forced to flee to Rome, where he remained for most of his life, serving as a kind of intellectual and information center for cultural and scientific information drawn not only from European sources but also from an extensive network of Jesuit missionaries. He was particularly interested in ancient Egypt and attempted to decipher hieroglyphics and other riddles. Kircher also compiled A Description of the Chinese Empire (1667), which was long one of the most influential books that shaped the European view of China.
A renowned polymath, Kircher conducted scholarly research in a variety of disciplines, including geography, astronomy, mathematics, languages, medicine, and music. He wrote some 44 books, and more than 2,000 of his manuscripts and letters have survived. He also assembled one of the first natural history collections.
Marin le Bourgeoys was a distinguished French artist and inventor, renowned for his creation of the flintlock mechanism that revolutionized firearms for over two centuries. Born into an esteemed artisan family in Lisieux, Normandy, le Bourgeoys was initially trained as a painter, later gaining acclaim as a gunsmith, inventor, and luthier.
His talents soon caught the eye of royalty; in 1598, King Henry IV appointed him "Valet de Chambre" at the Royal Court, a testament to his esteemed position in the realms of art and innovation. Le Bourgeoys' ingenuity extended beyond the court; his flintlock mechanism, invented in the early seventeenth century, was a pivotal development in firearm technology. This mechanism featured a striking device that, when the trigger was pulled, would hit a firing pin to ignite the primer in the gun cartridge, a design so advanced that it remained in use for over two centuries.
As an artist, le Bourgeoys' work was not limited to the functional; he was also a creator of luxury items, a clock-maker, and embodied the spirit of an educated Renaissance humanist thriving in cultivated circles. His legacy in the art world is marked by works such as the portrait of Henri IV, which was recently acquired by the Musée de l'Armée, signifying the lasting appreciation of his artistic prowess.
For collectors, auctioneers, and experts in art and antiques, Marin le Bourgeoys' contributions to both art and firearm technology present a rich tapestry of historical and cultural significance. To stay informed on updates and discoveries related to Marin le Bourgeoys, sign up for our exclusive newsletter.
Agostino Ramelli was an Italian military engineer and mechanic who worked in the fields of fortification and practical mechanics.
Ramelli studied mathematics, mechanics, and engineering under Giacomo di Marignano, who is considered a disciple of Leonardo da Vinci. He first showed his talents as a mechanic during Louis XIII's military campaign by constructing a mine under a bastion.
Ramelli invented many mechanisms that impressed his contemporaries, including their special aesthetic appeal. His most popular creation is the so-called Ramelli Book Wheel, a rotating reading table. Agostino Ramelli positioned his invention as a sleek design that allowed access to several books without having to get up from his seat.
Ramelli wrote and illustrated a book of engineering projects, Le various et artificiose machine ("Various and Artificial Machines"). The book contains 195 designs, over 100 of which are water-lifting machines, such as water pumps or wells, as well as bridges, mills, and so on. This very interesting book for our contemporaries is still published and is still in demand.
Otto Guericke, from 1666 von Guericke (pronunciation and original spelling: Gericke) was a German politician, jurist, physicist and inventor. He is best known for his experiments on air pressure with the Magdeburg hemispheres. He is considered the founder of vacuum technology.
Johann Zahn (German: Johann or Johannes Zahn) was a German scientist and philosopher, optician and astronomer, mathematician and inventor.
Zahn studied mathematics and physics at the University of Würzburg, was professor of mathematics at the University of Würzburg, and served as a canon of the Order of Regular Canon Premonstratensians. His other activities were optics as well as astronomical observations.
In 1686 Johann Zahn invented and designed a portable camera obscura with fixed lenses and an adjustable mirror, which is the prototype of the camera. In his treatise on optics, Oculus Artificialis Teledioptricus (1702), Zahn gives a complete picture of the state of optical science of his time. He begins with basic information about the eye and then moves on to optical instruments. The book is aimed at eighteenth-century microscope and telescope enthusiasts and includes all the necessary details of construction, from lens grinding to drawings.