Understanding the Fibonacci Sequence and Golden Ratio – Fractal Enlightenment The Fibonacci Sequence The Fibonacci sequence is possibly the most simple recurrence relation occurring in nature. It is 0,1,1,2,3,5,8,13,21,34,55,89, 144… each number equals the sum of the two numbers before it, and the difference of the two numbers succeeding it. It is an infinite sequence which goes on forever as it develops. The Golden Ratio/Divine Ratio or Golden Mean - The quotient of any Fibonacci number and it’s predecessor approaches Phi, represented as ϕ (1.618), the Golden ratio. This iteration can continue both ways, infinitely. The Golden Ratio can be seen from a Chambered Nautilus to a Spiraling Galaxy The Golden Ratio can be applied to any number of geometric forms including circles, triangles, pyramids, prisms, and polygons. Sunflowers have a Golden Spiral seed arrangement. If you graph any number system, eventually patterns appear. Our universe and the numbers not only go on infinitely linear, but even it’s short segments have infinite points. Image source Phi Golden Ratio
Wikisource NYPL Collections To reduce the spread of coronavirus (COVID-19) in New York City, all NYPL locations are temporarily closed until further notice. Learn more and find out about remote access for Library services. Click to visit the main New York Public Library Homepage The New York Public Library Digital Collections About Digital Collections Browse Search only public domain materials Home Search Browse About Items Collections Divisions Digital Collections Using Images Using Data Collections Browsing all collections All Collections Print Collection portrait file 73,012 items Historical and Public Figures: A General Portrait File to the 1920s 60,752 items Martha Swope photographs 59,024 items Billy Rose Theatre Collection photograph file 50,110 items Cigarette cards 49,680 items Robert N. 42,203 items Friedman-Abeles photograph collection 39,176 items Photographic views of New York City, 1870's-1970's, from the collections of the New York Public Library 34,741 items Wallach Division Picture Collection 34,270 items 31,565 items R. I.
Site officiel du musée du Louvre Art Throbs - beautiful.bizarre At beautiful.bizarre we receive hundreds of submissions each week from talented artists from around the world who would like to see their work published in beautiful.bizarre art quarterly. From these submissions we select those that we feel best reflect the aesthetic of beautiful.bizarre, and short list these artists for inclusion in a future issue of the publication. ‘Art Throbs’ celebrates the amazing works submitted by these established and emerging artists. We hope you are as excited by the quality of the art submitted to beautiful.bizarre as we are! If you would like to submit your work to be considered for possible feature in beautiful.bizarre art quarterly please do so via our submissions page, further information on the submission process can be found in our FAQ. Zofia Bogusz Sam Ectoplasm Zakuro Aoyama Marina González Eme Suzy Smith Megan Buccere Thomas Dodd Ann Bengard Amylee Chrystal Chan
Top sites pour télécharger des livres gratuits en Français Le moyen le plus efficace pour s'approprier de la culture est de lire les livres, celui-ci a pu résister durant des siecles à tous les autres moyens qui ont essayé de le remplacer mais vainement. Le secret de cette résistance farouche est due à sa capacité de s'adapter avec le développement de la technologie moderne qui a engendré ce qu'on appelle le livre électronique désigné aussi par le e-book. Il s'agit d'un livre en plusieurs formats tels que PDF ou ePub qu'on peut lire facilement sur l'écran. Dans ce billet j'aimerais vous présenter une liste de sites qui offrent le téléchargement gratuit de ces livres. 1) Wikisource: Le géant site de livres relatif au géante encyclopédie qui a battu tous les recours depuis sa création de ce fait il ne peut qu’être génial. 2) Ebooks-gratuits: Un tres bon site pour trouver et télécharger gratuitement tous les livres électroniques dont vous avez besoin et dans tous les domaines. Livre gratuit: Top sites pour télécharger des livres en Français
The Smithsonian has released more than 2.8 million images you can use for free The Smithsonian Institution is releasing 2.8 million high-res images from its massive collection into the public domain, putting them online for anyone to use and download for free. The open-access online platform will include 2D and 3D images from its 19 museums, nine research centers, archives, libraries, and the National Zoo, Smithsonian Magazine reports. “Being a relevant source for people who are learning around the world is key to our mission,” Effie Kapsalis, the Smithsonian’s senior digital program officer, says. “We can’t imagine what people are going to do with the collections. We’re prepared to be surprised.” A quick scan of the Smithsonian’s access platform gives users a small taste of what’s included in the enormous collection of some of the world’s most significant works, including a Degas portrait of Mary Cassatt, an image of a Roman glass bottle dating to 200 BC, the famous Gilbert Stuart portrait of George Washington, portraits of Pocahontas and Ida B.
Education Resources Content Links Student and teacher resources from the Smithsonian American Art Museum use visual arts to teach concepts central to social studies and language arts curricula. Intended for grade levels 4-12, these resources contain interactive or media-rich content and align with the Common Core State Standards. Our resources are ideal for teachers who want to integrate artworks into core disciplines. Browse content links. Teacher Guides We have digitized dozens of the Smithsonian American Art Museum's free educational materials for your use. Browse teacher guides. Sign up to receive email updates on teacher resources. Student Activities These features invite student participation, with online interactives or by submitting content for inclusion on the Smithsonian American Art Museum website. Browse online activities.
Summer Night by Eilif Peterssen via DailyArt mobile app I know it's not summer anymore, but who doesn't miss it? : ) Eilif Peterssen was one of six painters who spent the summer of 1886 on Fleskum Farm in Bærum outside of Kristiania; the other five were Christian Skredsvig, Gerhard Munthe, Erik Werenskiold, Kitty Kielland, and Harriet Backer. Inspired by the bright evenings of the Norwegian summer, they created a number of atmospheric landscape paintings. Peterssen’s most significant contribution is Summer Night, a lyrical depiction of a local lake, Dælivannet, in soft lighting. The atmospheric Neo-Romantic paintings form a contrast to the bright, impartially observational plein-air paintings that were otherwise so typical of this era, as represented by for example Erik Werenskiold and Gerhard Munthe. We present this painting thanks to the Nasjonalmuseet in Oslo. : ) P.S.
Carrefour éducation Ces banques de documents écrits ou sonores contiennent des textes et des livres dont les droits sont libérés pour usage en milieu scolaire. Notez que les nombreux textes répertoriés sur ces sites ne peut-être pas tous pertinents pour vos élèves. Carrefour éducation ne les a pas tous évalué selon le critère de l'âge. Pour vous aider nous avons identifié avec une icône la langue du site : pour le français et pour l'anglais. ABU : la bibliothèque universelle Ce site donne libre accès au texte intégral de 288 œuvres littéraires francophones, produites par des auteurs variés ayant marqué le 19e siècle. ABU est l'une des plus anciennes bibliothèques numériques d'ouvrages en langue française. Audiocité.net Écoutez un roman, une nouvelle, un poème d'auteur classique ou contemporain. Bibliothèque du Congrès américain Ce site en anglais de la Bibliothèque du Congrès américain offre une imposante banque de documents photo, audio et écrits. Bibliothèque électronique du Québec Bibliothèque et Archives Canada
Giovanni Marsili Collection, Padua BG A considerable part of Marsili's book collection is dedicated to botany, above all understood as the study of the effects of plants on human health, for centuries the foundation of medical art. Through the books of his collection it is possible to grasp the development of this science: from the uncritical study of the great names of the Latin and Greek world (Aristotle, Theophrastus, Dioscorides...) with illustrations lacking verisimilitude, to the study of live plants reproduced in images resembling the reality as closely as possible. In the 16th century, in fact, the scenario becomes more complex: live plants are studied and it is these, not the illustrations present in the previous books, that are reproduced in the new botanical books. The gaze now turns directly to nature in its reality. One of the teaching boards present in "Piante del R. Pseudoapuleio, De herbarum virtutibus (XV century) Pseudoapuleio, Incipit herbarium Apulei Platonici ad Marcum Agrippam (1481–1484) [Anonymous?]
Artforum International Smithsonian: Discovering Wonders Bern Dibner As a child, Bern Dibner (1897–1988) emigrated from Ukraine to the U.S., where he became a successful electrical engineer and inventor. Curious about Leonardo da Vinci’s incredible scientific and technological achievements, Dibner delved into the study of the history of science and technology, amassing a library of influential works, which he chronicled in his 1955 book, Heralds of Science. Bern Dibner Courtesy of the Dibner family Encouraged by Silvio Bedini, deputy director of the Museum of History and Technology (now the National Museum of American History), Dibner donated his collection to the Smithsonian in 1976. How to Move an Obelisk Bern Dibner loved reading about remarkable feats of engineering. Observing the Heavens Johannes Hevelius made important scientific discoveries from his state-of-the-art observatory in Poland, which included a 140-foot telescope. Medieval Medical Manual Everything You Need to Know The Science of Letters New Experiments History of Invention