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Francis Line

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The Reverend
Francis Line
SJ
Born1595
London
Died15 November 1675
Liège (Belgium)
Other namesLinus of Liège, Franciscus Linus
OccupationJesuit priest
Known formagnetic clock

Francis Line, SJ (1595 – 15 November 1675), also known as Linus of Liège, was a Jesuit priest and scientist. He is known for inventing a magnetic clock.[1][2] He is noted as a contemporary critic of the theories and work of Isaac Newton.[3] He also challenged Robert Boyle and his law of gases.[4]

Life

Line, who used the alias Hall, was born in 1595, most probably in London, or Buckinghamshire. He entered the Society of Jesus in 1623, was ordained priest in 1628, and was professed of the four vows on 20 August 1640.[5]

For many years Line was professor of Hebrew and mathematics at the Jesuit college at Liège. He was sent on the English mission about 1656, and for a short time he served in the Derby district. During 1659 and for several years he was in the London district; and in 1665 he was stationed in the Lancashire district. During the time that he was serving the English mission he constructed the dial which was set up in the king's private garden at Whitehall on 24 July 1669. In 1672 he was again at Liège, where he was spiritual father, and where he died on 25 November (N.S.) 1675.[5]

Dial at Whitehall Palace

Line created a dial for Charles II in 1669. It was fully described in An Explication of the Diall (1673).[6] It stood on a pedestal, and consisted of six parts, rising one above the other, with multitudes of planes cut on each, which were dials for the purposes of geography, astrology, and astronomy.[5] It was smashed by the Earl of Rochester and drunken friends in 1675.[7]

Francis Line's dial for Whitehall Palace, illustration copied from a work by William Leybourn

Works

His works are:[5]

  • Refutation of the attempt to Square the Circle, London, 1660; on the controversy over Gregory à Vincentio's De quadraturâ Circuli and reply of Christiaan Huyghens.
  • Tractatus de Corporum Inseparabilitate, London, 1661. A reply by Gilbert Clerke was published under the title of Tractatus de Restitutione Corporum in quo experimenta Torricelliana et Boyliana explicantur, et Rarefactio Cartesiana defenditur, London, 1662. Another reply was A Defence of the Doctrine touching the Spring and Weight of the Air, proposed by Mr. Robert Boyle, in his new Physico-Mechanical Experiments; against the objections of F. Linus. By the Author of those Experiments, London, 1662.[5]
  • A Letter [dated 6 Oct. 1674] animadverting on Newton's Theory of Light and Colors, in Philosophical Transactions, ix. 217.[5] A scientific debate followed, drawing in Anthony Lucas.[8]
  • Some Optical Assertions concerning the Rain-bow, transmitted from Liege, where they were publicly discussed in August last: Delivered here in the same Language [Latin], wherein they were communicated, in Philosophical Transactions, 26 Sept. 1675, x. 386.
  • A Treatise on the Barometer.
  • Tractatus de Horologiis, manuscript, preserved in the library of the university of Liège.

See also

References

  1. ^ Moray, Robert (2007). "Athanasius Kircher's Magnetic Clock". Travel Journal of Sir Robert Moray (Historical Facsimile ed.). Sebastopol, California: O'Reilly Media Inc.
  2. ^ "Francis Line's magnetic clock". Archived from the original on 21 August 2012. Retrieved 28 September 2012.
  3. ^ Reilly, Conor (1962). "Francis Line, Peripatetic (1595-1675)". Osiris. 14 (1). Saint Catherines Press.: 222–253. doi:10.1086/368628. S2CID 144445232.
  4. ^ Brush, Stephen G. (April 1999). "Gadflies and Geniuses in the History of Gas Theory". Synthese. 119 (1–2). Springer Netherlands: 11–43. doi:10.1023/A:1005235019068. ISSN 1573-0964. S2CID 11425368.
  5. ^ a b c d e f "Line, Francis" . Dictionary of National Biography. London: Smith, Elder & Co. 1885–1900.
  6. ^ An Explication of the Diall sett up in the Kings Garden at London, an. 1669. In which very many sorts of Dyalls are conteined; by which, besides the Houres of all kinds diversly expressed, many things also belonging to Geography, Astrology, and Astronomy are by the Sunnes shadow made visible to the eye. Amongst which, very many Dialls, especially the most curious, are new inventions, hitherto divulged be [sic] None,’ Liège, 1673, 4to. It was also printed in Latin, Liège, 1673.
  7. ^ James William Johnson (2004). A Profane Wit: The Life Of John Wilmot, Earl Of Rochester. University Rochester Press. p. 220. ISBN 978-1-58046-170-2. Retrieved 23 February 2013.
  8. ^ Schaffer, Simon. "Lucas, Anthony". Oxford Dictionary of National Biography (online ed.). Oxford University Press. doi:10.1093/ref:odnb/17122. (Subscription or UK public library membership required.)

Further reading

Attribution

 This article incorporates text from a publication now in the public domain: "Line, Francis". Dictionary of National Biography. London: Smith, Elder & Co. 1885–1900.

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