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2. Galileův Prubíř aneb Diskuse o podstatě a poloze komet
- Creator:
- Štefl, Vladimír
- Format:
- print, bez média, and svazek
- Type:
- model:article and TEXT
- Subject:
- Galilei, Galileo, 1564-1642, Grassi, Horace, 1583-1654, Toscanelli, Paolo dal Pozzo, 1397-1482, 16.-17. století, komety, comets, podstata a poloha komet, kometární astronomie, historie, nature and place of comets, history, 6, and 53
- Language:
- Czech and English
- Description:
- The book entitled "Assayer" published in 1623 was a controversial text about the theory of comets between Galileo and his opponent Horatio Grassi, the Jesuit mathematician. Galileo was an author of the original but false optical theory of comets while Grassi proposed a supra-lunar origin of comets supporting Tycho's opinion on comets and their motion. Unfortunately, Grassi's theory was based on a misunderstanding of how the telescope actually works., Vladimír Štefl., and Obsahuje bibliografii
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
3. Historie výkladu statické teorie slapů na Zemi
- Creator:
- Štefl, Vladimír
- Format:
- print, bez média, and svazek
- Type:
- model:article and TEXT
- Subject:
- Galilei, Galileo, 1564-1642, Newton, Isaac, 1642-1727, slapové jevy, astronomie, fyzická geografie, Měsíc, Země, gravitace, tides, physical geography, Moon, Earth, gravity, sea water, mořská voda, příliv, odliv, 7, and 551
- Language:
- Czech
- Description:
- Vladimír Štefl. and Rubrika: Historie fyziky
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public