Editing Magic lantern (section)

===Walgensten, the Dane===
[[File:1674 Dechales - Cursus seu mundus mathematicus - Laterna Magica.jpg|thumb|left|Walgensten's magic lantern as illustrated in [[Claude Dechales]] {{lang|la|Cursus seu Mundus Mathematicus — Tomus secundus}} (1674)]]
{{ill|Thomas Rasmussen Walgensten|da|Thomas Walgensten}} ({{circa|1627}}–1681), a mathematician from [[Gotland]], studied at the [[Leiden University|university of Leiden]] in 1657–58. He possibly met Christiaan Huygens during this time (and/or on several other occasions) and may have learned about the magic lantern from him. Correspondence between them is known from 1667. At least from 1664 until 1670, Walgensten demonstrated the magic lantern in Paris (1664), Lyon (1665), Rome (1665–1666), and Copenhagen (1670).<ref name=rossell2002 /> He "sold such lanterns to different Italian princes in such an amount that they now are almost everyday items in Rome", according to Athanasius Kircher in 1671.<ref>{{Cite web |last=Rendel |first=Mats |title=About the Construction of The Magic Lantern, or The Sorcerers Lamp. |url=http://www.phonurgia.se/rendel/mageng.html |archive-url=https://web.archive.org/web/20080118103300/http://www.phonurgia.se/rendel/mageng.html |url-status=dead |archive-date=2008-01-18 |website=A Page About Athanasius Kircher}}</ref> In 1670, Walgensten projected an image of Death at the court of [[King Frederick III of Denmark]]. This scared some courtiers, but the king dismissed their cowardice and requested to repeat the figure three times. The king died a few days later. After Walgensten died, his widow sold his lanterns to the {{ill|Royal Danish Collection|da|Kongernes Samling}}, but they have not been preserved.<ref name=rossell2002/> Walgensten is credited with coining the term ''Laterna Magica'',<ref name="magiclantern">{{Cite web |last1=Auckland |first1=George |last2=Heard |first2=Mervyn |title=An Introduction to Lantern History (Part 4) |url=http://www.magiclantern.org.uk/history/history04.php |url-status=dead |archive-url=https://web.archive.org/web/20180419053959/http://www.magiclantern.org.uk/history/history04.php |archive-date=19 April 2018 |access-date=28 August 2017 |website=The Magic Lantern Society}}</ref> assuming he communicated this name to [[Claude Dechales]] who, in 1674, published about seeing the machine of the "erudite Dane" in 1665 in Lyon.<ref>{{cite book|title=Cursus seu Mundus Mathematicus|trans-title=The Course or The Mathematical World|volume=Secundus|language=la|last=Dechales|first=Claude François Milliet|authorlink=Claude Dechales|year=1674|url=https://books.google.com/books?id=s1w2Zb7NZV0C&pg=PA665}}</ref>