Louis Bertrand Castel

Louis Bertrand Castel (5 November 1688^[1]^[2] – 11 January 1757^[3]^[4]) was a French mathematician born in Montpellier, who entered the order of the Jesuits in 1703. Having studied literature, he afterwards devoted himself entirely to mathematics and natural philosophy. After moving from Toulouse to Paris in 1720,^[5] at the behest of Bernard de Fontenelle, Castel acted as the science editor of the Jesuit Journal de Trévoux.^[6]

He wrote several scientific works, that which attracted most attention at the time being his Optique des couleurs (1740), or treatise on the melody of colours. He also wrote Traité de physique sur la pesanteur universelle des corps (1724), Mathématique universelle (1728), and a critical account of the system of Sir Isaac Newton in 1743.

^ Schier, Donald Stephen (1941). Louis Bertrand Castel, anti-Newtonian scientist. Cedar Rapids, Iowa: The Torch press. p. 3. Retrieved 28 November 2016. Louis-Bertrand Castel, second son of Guillaume Castel, physician, and of his wife, Louise, was born at Montpellier on the fifth of November, 1688. Footnote: And not on the eleventh as stated in the eulogy of Castel, Journal de Trevoux, April 1757, p. 1100. The fifth is the date given in the parish records of the church of Notre Dame in Montpellier. These records are now in the municipal archives.
^ Kipnis, Igor (2006). Harpsichord and clavichord : an encyclopedia. New York: Routledge. ISBN 0415937655.
^ Schier, Donald Stephen (1941). Louis Bertrand Castel, anti-Newtonian scientist. Cedar Rapids, Iowa: The Torch press. p. 57. Retrieved 28 November 2016. He died on the eleventh of January, 1757. Footnote: This is the date given in his eulogy in the J. de T., April, 1757, pp. 1114–1115. Other dates given are the ninth and the twelfth. See J. de T., January, 1759, p. 357.
^ Richard, Jean-Olivier (2015). The Art of Making Rain and Fair Weather: The Life and World System of Louis-Bertrand Castel, SJ (1688–1757). Baltimore, Maryland: Johns Hopkins University. p. 1. Retrieved 28 November 2016.
^ Rose, Hugh James (1857). A New General Biographical Dictionary. London: B. Fellowes, &c. p. 107.
^ Hankins, Thomas L. (1994). "The Ocular Harpsichord of Louis-Bertrand Castel; Or, The Instrument That Wasn't". Osiris. 9 (Instruments): 141–156. doi:10.1086/368734. JSTOR 302003. S2CID 144882388.

[Schier-1] Schier, Donald Stephen (1941). Louis Bertrand Castel, anti-Newtonian scientist. Cedar Rapids, Iowa: The Torch press. p. 3. Retrieved 28 November 2016. Louis-Bertrand Castel, second son of Guillaume Castel, physician, and of his wife, Louise, was born at Montpellier on the fifth of November, 1688. Footnote: And not on the eleventh as stated in the eulogy of Castel, Journal de Trevoux, April 1757, p. 1100. The fifth is the date given in the parish records of the church of Notre Dame in Montpellier. These records are now in the municipal archives.

[Kipnis-2] Kipnis, Igor (2006). Harpsichord and clavichord : an encyclopedia. New York: Routledge. ISBN 0415937655.

[Schier2-3] Schier, Donald Stephen (1941). Louis Bertrand Castel, anti-Newtonian scientist. Cedar Rapids, Iowa: The Torch press. p. 57. Retrieved 28 November 2016. He died on the eleventh of January, 1757. Footnote: This is the date given in his eulogy in the J. de T., April, 1757, pp. 1114–1115. Other dates given are the ninth and the twelfth. See J. de T., January, 1759, p. 357.

[Richard-4] Richard, Jean-Olivier (2015). The Art of Making Rain and Fair Weather: The Life and World System of Louis-Bertrand Castel, SJ (1688–1757). Baltimore, Maryland: Johns Hopkins University. p. 1. Retrieved 28 November 2016.

[Rose-5] Rose, Hugh James (1857). A New General Biographical Dictionary. London: B. Fellowes, &c. p. 107.

[Hankins-6] Hankins, Thomas L. (1994). "The Ocular Harpsichord of Louis-Bertrand Castel; Or, The Instrument That Wasn't". Osiris. 9 (Instruments): 141–156. doi:10.1086/368734. JSTOR 302003. S2CID 144882388.

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