5 results in English
The Celestial Threads
Yazep Drazdovich (1888–1954), a versatile figure in the history of Belarusian culture, worked in different areas of art as a painter, sculptor, ethnographer, archeologist, and teacher. One of the founders of the school of national historical painting, he was called a Belarusian Leonardo Da Vinci and a Belarusian Tsiolkovskii (after the Russian and Soviet scientist and pioneer of astronautics). Drazdovich’s passionate desire to unlock the secrets of the night sky led him to formulate his own theory on the origin of the planets in the solar system. He ...
New Treatise on Astronomy
Ramon Llull (circa 1232−1316), a key figure in medieval literature, was a multifaceted personality who pursued literature, philosophy, theology, and the natural sciences with passion and skill. An extraordinarily prolific writer, he is considered to be the author of 267 works, written mainly in Latin and Catalan. Tradition attributed to him an even larger number of titles. Concerned about the dissemination of his work, Llull wanted to assure that a large number of his texts were issued in Catalan as well in Latin in order to reach to a ...
On the Revolutions of the Celestial Spheres
De revolutionibus orbium coelestium (On the revolutions of the heavenly spheres), written by Polish astronomer Nicolaus Copernicus (1473–1543) and published just before his death, placed the sun at the center of the universe and argued that the Earth moved across the heavens as one of the planets. Copernicus anticipated his ideas would be controversial and waited more than 30 years to publish his book. De Revolutionibus opens with a brief argument for the heliocentric universe and follows with an extensive set of mathematical proofs and astronomical tables. Copernicus was ...
Contributed by Library of Congress
Facts on the Calculation of Degrees and Minutes
This manuscript by Badr al-Dīn Muhammad ibn Muhammad ibn Ahmad ibn Muhammad ibn al-Ġazal (1423–1506) contains a commentary on, and abridgement of, the astrological treatise on the calculation of the movement of stars and planets, Kašf al-haqā’iq fī hisāb al-daraj wa-al-daqā’iq (The uncovering of the facts regarding the calculation of degrees and minutes), by the Egyptian astronomer and mathematician Ahmad ibn Rağab ibn al-Mağdī (1366–1447). Ibn al-Mağdī was a disciple of the famous ‘Abdallāh al-Māridīnī (or al-Mārdīnī), who was the grandfather of the author of this ...
Contributed by Library of Congress
Book of the Alphonsine Tables
A reflection of the knowledge of astronomy of the time, these tables were produced in Spain between 1263 and 1272 under the direction of Isaac ben Sid and Judah ben Moses Cohen. The Ptolemaic belief that the planets orbited the Earth was then the predominant cosmological system, and the heliocentric model of the solar system formulated by Copernicus, who personally studied and copied the tables, was still two centuries away. Known as Alfonsine tables after King Alfonso X of Castile (reigned 1252–84), the tables are a compilation of data ...
Contributed by National Library of Spain