This presentation aims to give researchers working in the field of the history of astronomy a tas... more This presentation aims to give researchers working in the field of the history of astronomy a taste of the sources available in the various French national and diplomatic archives. It will also provide an overview of the collaboration between France and Turkey in terms of the exchange of archives in the field of astronomy, including scientific developments and exchanges of technical procedures over time. The application of this exchange of data also makes it possible to trace a partnership between France and the Ottoman Empire in the maritime field, particularly in the development of techniques for the construction of sailing ships and the use of maritime instruments to find one's bearings using the stars.
Virtual 40 th Symposium of the Scientific Instrument Commission (http://scientific-instrumentcomm... more Virtual 40 th Symposium of the Scientific Instrument Commission (http://scientific-instrumentcommission.org/), 12 July 2021 Fourteen sessions including our AGM, hosted on the Congress virtual platform (Congress registration required), all times for Prague (Central European Summer Time (GMT+2)), all presentations and discussions "live" during these times.
This study is about the effort to understand rainbow, halo and color problems in the Ottoman clas... more This study is about the effort to understand rainbow, halo and color problems in the Ottoman classical period. Discussions about rainbow, halo and color in the Ottoman classical period present the sources to be consulted in the history of Ottoman physics and the connection of these sources to different schools. It also shows how the theoretical knowledge produced was influenced by the scientific schools to which Ottoman scholars are members of. Explanations on problems related to rainbow, halo and color emerged with the influence of İbn Sina, ishraq schools of thought, kalām and optics. These schools, constitute the natural philosophy of Ottoman classical period and the scholars of the period preferred to follow their own school in their explanations. The interest in optics, more specifically in visual perception and the nature of color, in this period, especially in the reign of Sultan Mehmet II and Sultan Bayezid II, enabled the production of many independent treatises which explain the rainbow and halo. In these treatises two orientations emerged that the physicists following Ibn Sina such as Nalband-zade Husam al-Din al-Tokādī, Hojazade Muslihuddin Efendi, Karaveys al-Kojavī, and opticians following Kemal al-Dīn alFārisī like Quṭb al-Din Çelebi and Taqī al-Dīn al-Rāṣid. On the other hand, works from theological, ishraqi and peripatetic schools have given wide space to the arguments about light. Ottoman scholars, who debated about issues such as the structure of light, types of light, the nature and occurrence of colors, the relationship between light and color and the nature of darkness, hoped to provide answers to the epistemological problems that different approaches to light revealed in this intense discussion atmosphere. Discussions on the light-color relationship reached its climax with Taqī al-Dīn al-Rāṣid in the Ottoman classical period, as he carried the light-color relationship to the experimental setup and made extensive determinations about the nature of color. Keywords: Rainbow, halo, colour, optics, Ottoman history of science.
Abstract This paper reports the formation of vertical
cylindrical sand pile formation in rotating... more Abstract This paper reports the formation of vertical cylindrical sand pile formation in rotating container partially lled with water . A steady stream of dry sand is poured of the rotational axis into a horizontally revolving cylindrical container which is full up to a certain level with water. The water rst forms a parabola which leaves dry the center part of the container base. The steady steam sand forms a cylindrical pile with a parabolic cavity in the middle. For smaller granular sand particles this newly developed cylinder is more stable than for bigger granular sand particles. The essential features of the system that produce the phenomenon are discussed and the robustness of the phenomena is demonstrated with experiments using di erent boundary conditions and di erent kinds of sand.
Keywords Granular Agglomeration Conglomeration Secondary Flow Vertical Rotational Movement
This presentation aims to give researchers working in the field of the history of astronomy a tas... more This presentation aims to give researchers working in the field of the history of astronomy a taste of the sources available in the various French national and diplomatic archives. It will also provide an overview of the collaboration between France and Turkey in terms of the exchange of archives in the field of astronomy, including scientific developments and exchanges of technical procedures over time. The application of this exchange of data also makes it possible to trace a partnership between France and the Ottoman Empire in the maritime field, particularly in the development of techniques for the construction of sailing ships and the use of maritime instruments to find one's bearings using the stars.
Virtual 40 th Symposium of the Scientific Instrument Commission (http://scientific-instrumentcomm... more Virtual 40 th Symposium of the Scientific Instrument Commission (http://scientific-instrumentcommission.org/), 12 July 2021 Fourteen sessions including our AGM, hosted on the Congress virtual platform (Congress registration required), all times for Prague (Central European Summer Time (GMT+2)), all presentations and discussions "live" during these times.
This study is about the effort to understand rainbow, halo and color problems in the Ottoman clas... more This study is about the effort to understand rainbow, halo and color problems in the Ottoman classical period. Discussions about rainbow, halo and color in the Ottoman classical period present the sources to be consulted in the history of Ottoman physics and the connection of these sources to different schools. It also shows how the theoretical knowledge produced was influenced by the scientific schools to which Ottoman scholars are members of. Explanations on problems related to rainbow, halo and color emerged with the influence of İbn Sina, ishraq schools of thought, kalām and optics. These schools, constitute the natural philosophy of Ottoman classical period and the scholars of the period preferred to follow their own school in their explanations. The interest in optics, more specifically in visual perception and the nature of color, in this period, especially in the reign of Sultan Mehmet II and Sultan Bayezid II, enabled the production of many independent treatises which explain the rainbow and halo. In these treatises two orientations emerged that the physicists following Ibn Sina such as Nalband-zade Husam al-Din al-Tokādī, Hojazade Muslihuddin Efendi, Karaveys al-Kojavī, and opticians following Kemal al-Dīn alFārisī like Quṭb al-Din Çelebi and Taqī al-Dīn al-Rāṣid. On the other hand, works from theological, ishraqi and peripatetic schools have given wide space to the arguments about light. Ottoman scholars, who debated about issues such as the structure of light, types of light, the nature and occurrence of colors, the relationship between light and color and the nature of darkness, hoped to provide answers to the epistemological problems that different approaches to light revealed in this intense discussion atmosphere. Discussions on the light-color relationship reached its climax with Taqī al-Dīn al-Rāṣid in the Ottoman classical period, as he carried the light-color relationship to the experimental setup and made extensive determinations about the nature of color. Keywords: Rainbow, halo, colour, optics, Ottoman history of science.
Abstract This paper reports the formation of vertical
cylindrical sand pile formation in rotating... more Abstract This paper reports the formation of vertical cylindrical sand pile formation in rotating container partially lled with water . A steady stream of dry sand is poured of the rotational axis into a horizontally revolving cylindrical container which is full up to a certain level with water. The water rst forms a parabola which leaves dry the center part of the container base. The steady steam sand forms a cylindrical pile with a parabolic cavity in the middle. For smaller granular sand particles this newly developed cylinder is more stable than for bigger granular sand particles. The essential features of the system that produce the phenomenon are discussed and the robustness of the phenomena is demonstrated with experiments using di erent boundary conditions and di erent kinds of sand.
Keywords Granular Agglomeration Conglomeration Secondary Flow Vertical Rotational Movement
Uploads
Papers by Sena Aydın
rainbow and halo. In these treatises two orientations emerged that the physicists following Ibn Sina such as Nalband-zade Husam al-Din al-Tokādī, Hojazade Muslihuddin Efendi, Karaveys al-Kojavī, and opticians following Kemal al-Dīn alFārisī like Quṭb al-Din Çelebi and Taqī al-Dīn al-Rāṣid. On the other hand, works from theological, ishraqi and peripatetic schools have given wide space to the arguments about light. Ottoman scholars, who debated about issues such as the structure of light,
types of light, the nature and occurrence of colors, the relationship between light and color and the nature of darkness, hoped to provide answers to the epistemological problems that different approaches to light revealed in this intense discussion atmosphere. Discussions on the light-color relationship reached its climax with Taqī al-Dīn al-Rāṣid in the Ottoman classical period, as he carried the light-color relationship to the experimental setup and made extensive determinations about the
nature of color.
Keywords: Rainbow, halo, colour, optics, Ottoman history of science.
cylindrical sand pile formation in rotating container
partially lled with water . A steady stream of dry sand
is poured of the rotational axis into a horizontally revolving
cylindrical container which is full up to a certain
level with water. The water rst forms a parabola
which leaves dry the center part of the container base.
The steady steam sand forms a cylindrical pile with
a parabolic cavity in the middle. For smaller granular
sand particles this newly developed cylinder is more
stable than for bigger granular sand particles. The essential
features of the system that produce the phenomenon
are discussed and the robustness of the phenomena
is demonstrated with experiments using di erent
boundary conditions and di erent kinds of sand.
Keywords Granular Agglomeration Conglomeration
Secondary Flow Vertical Rotational Movement
rainbow and halo. In these treatises two orientations emerged that the physicists following Ibn Sina such as Nalband-zade Husam al-Din al-Tokādī, Hojazade Muslihuddin Efendi, Karaveys al-Kojavī, and opticians following Kemal al-Dīn alFārisī like Quṭb al-Din Çelebi and Taqī al-Dīn al-Rāṣid. On the other hand, works from theological, ishraqi and peripatetic schools have given wide space to the arguments about light. Ottoman scholars, who debated about issues such as the structure of light,
types of light, the nature and occurrence of colors, the relationship between light and color and the nature of darkness, hoped to provide answers to the epistemological problems that different approaches to light revealed in this intense discussion atmosphere. Discussions on the light-color relationship reached its climax with Taqī al-Dīn al-Rāṣid in the Ottoman classical period, as he carried the light-color relationship to the experimental setup and made extensive determinations about the
nature of color.
Keywords: Rainbow, halo, colour, optics, Ottoman history of science.
cylindrical sand pile formation in rotating container
partially lled with water . A steady stream of dry sand
is poured of the rotational axis into a horizontally revolving
cylindrical container which is full up to a certain
level with water. The water rst forms a parabola
which leaves dry the center part of the container base.
The steady steam sand forms a cylindrical pile with
a parabolic cavity in the middle. For smaller granular
sand particles this newly developed cylinder is more
stable than for bigger granular sand particles. The essential
features of the system that produce the phenomenon
are discussed and the robustness of the phenomena
is demonstrated with experiments using di erent
boundary conditions and di erent kinds of sand.
Keywords Granular Agglomeration Conglomeration
Secondary Flow Vertical Rotational Movement