Search results
Results from the WOW.Com Content Network
The following systems arose from earlier systems, and in many cases utilise parts of much older systems.For the most part they were used to varying degrees in the Middle Ages and surrounding time periods.
Dimensionless quantities, or quantities of dimension one, [1] are quantities implicitly defined in a manner that prevents their aggregation into units of measurement. [ 2 ] [ 3 ] Typically expressed as ratios that align with another system, these quantities do not necessitate explicitly defined units .
This is a list of well-known dimensionless quantities illustrating their variety of forms and applications. The tables also include pure numbers, dimensionless ratios, or dimensionless physical constants; these topics are discussed in the article.
The scientific enterprise in antiquity and the middle ages: readings from Isis. Chicago: University of Chicago Press. ISBN 0-226-74951-7. Walsh, James (1908) [1908]. The Popes and Science: The History of the Papal Relations to Science During the Middle Ages and Down to Our Own Time. Kessinger Publishing. ISBN 0-7661-3646-9.
Middle Ages – Lasted from the 5th to the 15th century. It began with the collapse of the Western Roman Empire in 476 and is variously demarcated by historians as ending with the Fall of Constantinople in 1453, or the discovery of America by Columbus in 1492, merging into the Renaissance and the Age of Discovery. Early Middle Ages; High Middle ...
The first extant sources discussing such theories are found in ancient Greek philosophy. This work was furthered through the Middle Ages by Indian, Islamic, and European scientists, before gaining great strides during the Renaissance and Scientific Revolution—culminating in the formulation of Newton's law of gravity.
After the significant contributions of Greek scholars to the development of astronomy, it entered a relatively static era in Western Europe from the Roman era through the 12th century. This lack of progress has led some astronomers to assert that nothing happened in Western European astronomy during the Middle Ages. [66]
The first astronomical texts that were translated into Arabic were of Indian [2] and Persian origin. [3] The most notable was Zij al-Sindhind, a zij produced by Muḥammad ibn Ibrāhīm al-Fazārī and Yaʿqūb ibn Ṭāriq, who translated an 8th-century Indian astronomical work after 770, with the assistance of Indian astronomers who were at the court of caliph Al-Mansur.