L’artialisation des sons de la nature dans les sanctuaires à automates d’Alexandrie, du iiie s. av. J.-C. au ier s. apr. J.-C. DOI are automaticaly added to references by Bilbo, OpenEdition's Bibliographic Annotation Tool.Users of institutions which have subscribed to one of OpenEdition freemium programs can download references for which Bilbo found a DOI in standard formats using the buttons available on the right. The Bibliographic Export Service is accessible via institutions subscribing to one OpenEdition freemium programs.If you wish your institution to become a subscriber to one OpenEdition freemium programs and thus benefit from our services, please write to: access@openedition.org. Adriani, A., 1966, Repertorio d’arte dell’Egitto greco-romano, série C, Palerme. Aneziri, S., 2013, Étude préliminaire sur le culte privé des souverains hellénistiques : problèmes et méthode, dans V. Dasen et M. Argoud, G. Argoud, G. et Guillaumin, J. Argoud, G. et Guillaumin, J. Ballet, P., 1999, La vie quotidienne à Alexandrie (331-30 av. Bedini, S. Bernand, A., 1996, Alexandrie la Grande, Paris. Bettini, M., 2008, Voci.
Héron d'Alexandrie ChronoMath, une chronologie des MATHÉMATIQUES à l'usage des professeurs de mathématiques, des étudiants et des élèves des lycées & collèges Également appelé Héron l'Ancien, Héron d'Alexandrie fut un disciple de Ctésibius (vers 170-117 av. J. Héron mit en pratique, dans divers domaines, ses connaissances en géométrie et en physique issues d'Euclide et d'Archimède : architecture, optique, réalisation de diverses machines (fontaines, machines à vent et à vapeur) et instruments de mesure, comme l'odomètre (hodos = route, metron = mesure) permettant de calculer les distances parcourues et dont le principe conduit au compteur kilométrique des bicyclettes indiquant également la vitesse instantanée. Dans son Catoptrique, il expose le principe géométrique des lois de la réflexion basé sur un principe de moindre action selon lequel la lumière suit toujours le chemin le plus court. ••• Grandes inventions des grecs antiques (sur Dailymotion) : » Étudions ce problème : 16A2 = 3a2(a2 - 4) (1) x2 - 3y2 = 1
Heron's fountain Hydraulic machine using pneumatic transfer of hydrostatic pressure to operate a fountain Executed example of a Heron's fountain in operation Heron's fountain is a hydraulic machine invented by the 1st century AD inventor, mathematician, and physicist Heron of Alexandria (also known as Hero of Alexandria). Heron studied the pressure of air and steam, described the first steam engine, and built toys that would spurt water, one of them known as Heron's fountain. Various versions of Heron's fountain are used today in physics classes as a demonstration of principles of hydraulics and pneumatics. Construction[edit] Diagram of a functioning Heron's fountain Simplified Heron's fountain principle In the following description, call the 3 containers: (A) Top: basin(B) Middle: water supply(C) Bottom: air supply And three pipes: It is okay if A is closed and airtight, but it is not necessary. These principles explain the construction: Motion[edit] Reiterative motion and variants[edit] Geological phenomena[edit]
Hero’s Automata: First Moves | Classics at Glasgow Since October 2014, I’ve been working with a team to investigate Hero (Heron) of Alexandria’s treatise On Making Automata (peri automatopoiētikēs). It’s not a very well known or well studied text, but it’s our best detailed evidence for a recognisable sub-field within ancient mechanics and engineering. The devices that Hero describes are powered mainly by falling weights that turn rotating axles and screws by means of cords, with some elements also powered by springs. These devices are thus distinguished from those described in Hero’s longer work, the Pneumatica, which are powered by water, wind or steam. Hero describes two families of automata, mobile and static. Our project has three main aspects. As a first step, Duncan is modelling the device in the 3D design package SolidWorks, before we hand the specifications over to technicians in the workshop of the School of Engineering to produce the components. We’ve been working mainly on the mobile automaton in the past year.
Translations of the works of Hero of Alexandria – Roger Pearse The appearance of a manuscript of works by the ancient engineer, Hero of Alexandria (ca. 62 AD) online at the British Library led me to look online for an English translation for his Automata. I had no luck, but I thought that some notes on what he wrote and how we got it might be useful. The Greek texts, with German translations, are all available in W. Schmidt, Heronis Alexandrini Opera Quae Supersunt Omnia, in 5 volumes, Teubner, 1899 etc. These are online here. The mechanical works include: [1] The Pneumatica in 2 books, covering devices powered by compressed air, steam and water. I also found a mistake in the literature: Drachmann’s Mechanical technology does NOT contain translations of any of his works, but is rather a commentary on the Mechanica (only), albeit with excerpts embedded.[9] Unfortunately it does not specify which works. There are also two artillery manuals covering different types of catapult. The Belopoeica. Hero also wrote a number of mathematical works. Like this:
La dioptre d'Héron d'Alexandrie - Académie Pont du Gard Un perfectionnement dans la technique de l’arpentage qui tiendra jusqu’à la mise au point du théodolite réalisable grâce maquette de la dioptre d’Héron, ancêtre du théodolite aux lentilles optiques, à partir du XVIe siècle après J.-C. Cet instrument constitué d’un plan inclinable selon les hauteurs et muni d’un index orientable en azimuts est d’une grande souplesse d’utilisation. Héron d’Alexandrie qui vivait au premier siècle après J. Lors de ce colloque, qui a rassemble 21 intervenants, a été posée la question fondamentale sur « la précision que peuvent atteindre des mesures effectuées avec la dioptre, compte tenu des possibilités techniques effectivement rencontrées à l’époque de sa construction. Pour en savoir plus : WordPress: J’aime chargement… Ce contenu a été publié dans culture.
Quelques auteurs antiques et contemporains - Académie Pont du Gard Auteurs concernés dans ce site. Auteurs antiques Frontin – Curateur des eaux des aqueducs de Rome (97-98 ap. Hygin – Lequel ? Hygin « tout court » est un arpenteur, auteur de trois traités (II e siècle ap. Balbus – Arpenteur (II e siècle ap. Iunius Nypsius (ou Nypsus ou Nipsus) – Cité de nombreuses fois par Anne Roth-Congès (Colloque de St-Etienne). Pythagore (572 ? EUCLIDE (365 ? VERUS – le boutiquier de Pompéi qui, lors de l’éruption du Vésuve (79 ap. Vitruve (88-26 av. HÉRON D’ALEXANDRIE (I er siècle ap. Auteurs contemporains Gérard Chouquer et François Favory – L’arpentage romain – Ed. WordPress: J’aime chargement… Ce contenu a été publié dans Bibliographie.
Pont du Gard Ancient Roman aqueduct bridge Description[edit] The bridge has three tiers of arches made from Shelly limestone and stands 48.8 m (160 ft) high. The aqueduct formerly carried an estimated 40,000 m3 (8,800,000 imp gal; 11,000,000 US gal) of water a day over 50 km (31 mi) to the fountains, baths and homes of the citizens of Nîmes. The structure's precise construction allowed an average gradient of 1 cm (0.39 in) in 182.4 m (598 ft). After the Roman Empire collapsed and the aqueduct fell into disuse, the Pont du Gard remained largely intact with a secondary function as a toll bridge. Route of the Nîmes aqueduct[edit] The location of Nemausus (Nîmes) was somewhat inconvenient when it came to providing a water supply. The Nîmes aqueduct was built to channel water from the springs of the Fontaine d'Eure near Uzès to the castellum divisorum (repartition basin) in Nemausus. The spring still exists and is now the site of a small modern pumping station. Description of the bridge[edit] History[edit]
Héron d'Alexandrie : Dioptrie Comme l'emploi de la dioptre fournit des applications nombreuses et indispensables aux usages de la vie, et que l'on en a beaucoup parlé, je pense qu'il est nécessaire de mettre par écrit les observations recueillies par nos devanciers (observations importantes, comme je viens de le dire), et en même temps de rectifier ce qui en a été dit avec trop peu d'exactitude. Je ne crois cependant pas qu'il soit nécessaire de rapporter ici tout ce que l'on trouve de mal exposé ou d'erroné et entièrement faux dans les auteurs qui nous ont précédé : on pourra toujours, quand on le voudra, juger de la différence qui se trouve entre eux et nous. Ce n'est pas tout : ceux qui ont décrit ces sortes d'opérations n'ont pas toujours su établir leur pratique sur l'emploi du même instrument; et néanmoins, leurs appareils, tout nombreux et variés qu'ils sont, ne donnent que les solutions d'un petit nombre de problèmes. Ainsi parle Venturi. Voici le tableau synoptique de ces relations : « Vitruve, liv.
Heron of Alexandria - A Beautiful Mind - Geometer and Mathematician This genius built steam engines, programmable computers, robots and surveying instruments, many of which show the workings of a keen and insightful mind, and he is certainly worthy of being mentioned alongside Archimedes, Leonardo Da Vinci and Edison as one of the greatest inventors in human history. Heron of Alexandria - The Legacy Despite the lack of historical records on Heron's life, the breadth of his writings on mathematics and mechanics leave little doubt that he was well educated. Heron's writings in mathematics and mechanics reveal that he was practical by nature, often using ingenious means to attain his goal, such as his design for a steam engine, war catapults, and various machines for lifting that used compound pulleys and winches. Heron was also precise in dictating the types of materials that should be used to make the machine function properly. The Life of Heron of Alexandria Very little is known about the life of Heron of Alexandria. Geometry and Mathematics Surveying Optics