The recently announced results from the ICEP2 experiment are intepreted as an indirect observation of inflation gravitational waves. In this article we briefly discuss the cosmic inflation hypothesis, what is the B-mode, how it was measured, and why the polarization of the cosmic microwave background radiation can reveal how strong gravitational waves were present in the universe during this early epoch., Tomáš Ledvinka., and Obsahuje seznam literatury
Kdyby nebylo popularizátorů, pak bychom kromě úzké vědecké komunity věděli o vědě, vědcích a smyslu jejich práce velmi málo. Pokud sem tam uniknou mimo jejich společnost nějaké informace o výzkumech a pokusech zdařených i nezdařených, bývají strohé a laikům nesrozumitelné. Tudíž nevědcům je třeba je ozřejmit, jaksi polidštit. A zde nastupují populátoři vědy, lidé vládnoucí mistrnou schopností přenést do veřejnosti - ne úplně laické - to, nač vědci myslí, co tvoří a vůbec, čím se zabývají a jací jsou. Pokud nahlédneme do dějin přírodních věd, zjistíme, že jako první byla popularizována astronomie. Stalo se tak především zásluhou francouzského astronoma Nicolase Camille Flammariona., This contribution describes the life and the work of French astronomer and writer Camille Flammarion. He is well known as a pioneer in science (esp. astronomy) popularization. The introductory part of this article sheds light on Flammarion‘s professional career in the Paris Observatory and in the Bureau of Measures. The central part of the article overviews Flammarion‘s popularization work, including writing books, giving public lectures, editing several journals, and so on. Flammarion‘s views on a calendar reformation are also discussed. The article ends with a list of Flammarion‘s publications, including their Czech editions., František Jáchim., and Obsahuje seznam literatury
At the beginning of the 20th century the task of reviewing all available literature across different scientific fields was initiated by professor Raýman, the general secretary of the Czech Academy of Emperor Franz Joseph for Science, Literature and Arts (CASLA). The first review for 1901 (in Czech language) appeared in the CASLA Bulletin during 1902. However, later, until the 1914 review, which was partially published in 1916, the reviews only consisted of physics reports. Usually, about five authors wrote the physical review covering different fields. Beginning in 1903, the review was also published as a separate book. The first 10 years of physical reviews referenced about 15 thousands papers from all available global literature., Jan Valenta., and Obsahuje bibliografii