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{{short description|Canadian mathematician}} | nationality = Canadian ...

...nk it's not a battery. I think the people who argue it's a battery are not scientists, basically. I don't know anybody who thinks it's a real battery in the fiel ...or [[panemone windmill]] first appeared in [[Greater Iran]] during the 9th century.<ref>Glick, Thomas F., Steven Livesey, and Faith Wallis. Medieval science, ...

...last2=Toral |first2=Isabel |title=Baghdād: From Its Beginnings to the 14th Century |date=28 Jul 2022 |isbn=978-90-04-51337-2 |page=804 |publisher=BRILL |url=h ===19th century=== ...

...s Report, 25 February 1993</ref><ref name="RebeccaLeung"/> and a twentieth-century trend toward smaller families in developed countries continued.<ref>{{cite ...adults and children was much smaller than it is in the early twenty-first century. Between 1953 and 2006, adult gains on the vocabulary subtest of the [[Wech ...

...Charles Tilly]]). Almost all socialist countries that appeared in the 20th century arose out of wars. ...''Aristotle, Adam Smith and Karl Marx. On Some Fundamental Issues in 21st Century Political Economy''. Cheltenham: Edward Elgar, 2010, Part 1.</ref> Aristotl ...

...relessly, increasing awareness of the dangers of [[radiation]] in the 20th century led to the implementation of various preventive measures worldwide, resulti In the 21st century, regulations are becoming even stricter. The permissible limits for ionizin ...