Results 161 to 170 of about 777 (178)

Studies of Coins of Medieval Volga Bulgaria by Neutron Diffraction and Tomography

open access: yesJournal of Surface Investigation, 2020
The phase composition and spatial distribution of chemical components in the volume of coins of medieval Volga Bulgaria are studied using the neutron-diffraction- and neutron-tomography methods. Two coins belonging to different time periods of this medieval state are studied: a Samanid multidirham dating from the first half of the 10th Century and a ...
S E Kichanov, D P Kozlenko, Kichanov S E
exaly   +3 more sources

Volga Bulgaria on the Map of Ibn Hawqal

Vostok. Afro-aziatskie obshchestva: istoriia i sovremennost, 2022
  The article is devoted to the analysis of information about the Volga Bulgaria in “The Book of the Picture of the Earth” (Kitāb ṣūrat al-arḍ) by an Arab scholar of the second half of the 10th century Ibn Ḥawqal who combined descriptive and cartographic ways of showing the earth in his work.
openaire   +1 more source

The Significance of al-Biruni’s Stories about the Volga Bulgaria

Vostok. Afro-aziatskie obshchestva: istoriia i sovremennost, 2022
The article analyzes the information of the famous scientist of the 11th century. Abu Reyhan al-Biruni about the Volga Bulgaria, which are in his surviving works – “Monuments of past generations”, “Masudov’s tables on the astronomy of stars”, “Geodesy”, “The book of admonishment to the beginnings of the science of stars”, “Separation of speech about ...
openaire   +1 more source

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