BIO

Dissertation: N/A

Highest degree: N/A

Fields of interest:

• physics
• mathematics

Biography:
Holst attended the HBS in Haarlem and, after receiving his diploma in 1903, worked in industry for two years. In 1905 he enrolled at the Eidgenössische Technische Hochschule (ETH) in Zurich to study mechanical engineering, switching to mathematics and physics the following year, he received his diploma of Geprüfter Fachlehrer in 1908 and remained at the ETH as assistant to H.F. Weber until 1910. In that year, he became an assistant of Kamerlingh Onnes at the Leiden Physics laboratory. Here Holst made the first measurements of the electrical resistance of metals at liquid-Helium temperatures and was thus intimately involved in the discovery of superconductivity. For his dissertation, Holst made measurements of the thermal properties of ammonia and methyl chloride, and for this work he received his doctorate from the ETH in 1914.
Having finished his education, Holst joined the Philips Gloeilampenfabriek in Eindhoven, where he founded the Physics laboratory, which quickly became the most important industrial research laboratory in the Netherlands. He published a series of articles on measurements of illumination, the properties of Tungsten, and gas discharges. More importantly, Holst surrounded himself with capable associates (e.g., H.B.G. Casimir), whom he led and inspired, and he had a keen sense of which scientific results were ready for practical application. The laboratory's studies of gas discharges, for instance, were inspired by Bohr's atomic theory, important studies were performed under Holst's direction on radio tubes, X-Ray tubes, and photocells. Holst's early ideas about radio as a means of communication were controversial, but he was strongly supported by the company's owner, Anton Philips. By the mid-1930s, Holst had put together a research group on the electrical and magnetic properties of solids to investigate the possibilities opened up by quantum theory. From 1929 to 1939, Holst served as honorary professor at Leiden.
Personally reserved, Holst was not a good public speaker or talented writer: his talent lay in inspiring others. He made sure that his staff maintained contacts with the foremost researchers in scientific fields, and encouraged them to publish in scientific journals and attend scientific conferences. Although Holst suffered increasingly from depression, he carried on at the Philips laboratory until 1946, when he retired, retaining his connection with Philips as an adviser until 1956. From 1946 to 1956 he also served as 'curator' (governor) of the Technical College in Delft. He was instrumental in the founding of the Netherlands' second technical college in Eindhoven in 1957.

Residence

• Waalre 

Occupation

N/A

Education

N/A

Membership

• Koninklijke Nederlandsche Akademie van Wetenschappen
  Member Afd. Natuurkunde 18-05-1926

Provenance

• Gaillard, P.J., ‘G. Holst’, Verslagen Natuurkunde 77 (1968), p. 122.
• Van Helden, Albert, 'Gilles Holst', in: History of Science and Scholarship in the Netherlands, (1999) 471-472.
• Casimir, H.B.G., Jaarboek KNAW (1968/69),p. 225-230.

Publications

• On the measurement of very low temperatures. XXVI. The vapour-pressures of oxygen and nitrogen according to the pressure-measurements by v. Siemens and the temperature-determinations by Kamerlingh Onnes c.s Year: . Pages: 12. (PDF format)
  
• On the equation of state of water and of ammonia Year: . Pages: 7. (PDF format)
  
• Sparks in air of atmospheric pressure Year: . Pages: 2. (PDF format)
  

Wiki and VIAF

Wiki Data: Q2221508
VIAF: http://viaf.org/viaf/1995685

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BIO

Dissertation: N/A

Highest degree: N/A

Fields of interest:

• mathematics

Biography:
He was teacher in Amsterdam in ~1841.

Residence

• Amsterdam 1841~

Occupation

• teacher and school director 1841~, Amsterdam

Education

N/A

Membership

• Wiskundig Genootschap onder de zinspreuk ‘Een onvermoeide Arbeid komt alles te boven’ - Amsterdam
  member 1836 - 1841~

Provenance

• “Naamlijst der leden van het wiskundig genootschap”, in: Verzameling van nieuwe wiskundige voorstellen (Amsterdam 1841).
• Molhuysen, P.C., en P.J. Blok (redactie), Nieuw Nederlandsch Biografisch Woordenboek. Deel 1. (Leiden 1911) 1143.

Publications

N/A

Wiki and VIAF

Wiki Data: N/A
VIAF: N/A

BIO

Dissertation: N/A

Highest degree: N/A

Fields of interest:

• physics

Biography:
N/A

Residence

• Oslo 

Occupation

N/A

Education

N/A

Membership

• Koninklijke Nederlandsche Akademie van Wetenschappen
  Foreign Member Afd. Natuurkunde 16-05-1919

Provenance

• Ledenlijst in: De leden van de Koninklijke Nederlandse Akademie van Wetenschappen. Een demografisch perspectief: 1808 tot 2008. Kaa, D.J. vam de, Roo, Y. de. KNAW Press (2008)

Publications

N/A

Wiki and VIAF

Wiki Data: Q518399
VIAF: http://viaf.org/viaf/67245538

BIO

Dissertation: N/A

Highest degree: N/A

Fields of interest:

• medicine

Biography:
Medical Doctor

Residence

• Rotterdam 
• Zwolle 
• Enkhuizen 

Occupation

• Medical Doctor 1783~

Education

N/A

Membership

• Bataafsch Genootschap der Proefondervindelijke Wijsbegeerte - Rotterdam
  Member 1787
• Natuur- en Geneeskundige Correspondentie Societeit in de Vereenigde Nederlanden - ’s HageRotterdam
  contributing member 1783

Provenance

• 'Naamlijst der H.H. Leden van de Algemeene Natuur en Geneeskundige Correspondentie-Societeit', in: Verhandelingen van de Natuur- en Geneeskundige Correspondentie-Societeit ('s Gravenhage 1783).

Publications

N/A

Wiki and VIAF

Wiki Data: N/A
VIAF: http://viaf.org/viaf/18711508

BIO

Dissertation: N/A

Highest degree: N/A

Fields of interest:

• physics

Biography:
N/A

Residence

N/A

Occupation

N/A

Education

N/A

Membership

• Gezelschap ter Beoeffening der proefondervindelijke Wijsbegeerte in ’s Hage
  member (physics department) 1803 - 1809~

Provenance

• Naamlijst der leden van de Maatschappij voor natuur- en letterkunde (Den Haag 1809).

Publications

N/A

Wiki and VIAF

Wiki Data: N/A
VIAF: N/A

BIO

Dissertation: N/A

Highest degree: N/A

Fields of interest:
N/A

Biography:
N/A

Residence

N/A

Occupation

N/A

Education

N/A

Membership

• Gezelschap ter Beoeffening der proefondervindelijke Wijsbegeerte in ’s Hage
  member 1804 - 1814~

Provenance

• Naamlijst der leden van de Maatschappij voor natuur- en letterkunde (Den Haag 1809).
• Naamlijst der leden van de Maatschappij voor natuur- en letterkunde (Den Haag 1814).

Publications

N/A

Wiki and VIAF

Wiki Data: N/A
VIAF: N/A

BIO

Dissertation: Aanteekeningen op de anatomie van Lambricus Terrestris (1876)

Highest degree: Dr.

Fields of interest:

• zoology

Biography:
"Conservator bij 's Rijks Museum van natuurlijke historie, Nieuwsteeg, te Leiden"

Residence

• Leiden 

Occupation

N/A

Education

N/A

Membership

• Nederlands Natuur- en Geneeskundig Congres
  member [..1890]

Provenance

• Ledenlijst Vereeniging het Nederl. Natuur- en Geneesk. Congres (1890).
• http://www.repository.naturalis.nl/document/150674
• http://www.repository.naturalis.nl/document/149931
• Ledenlijst in: Tijdschrift voor Entomologie, vier-en-dertigste deel, Jaargang 1890-1891
• JAARBOEKJE VOOR GESCHIEDENIS EN OUDHEIDKUNDE VAN LEIDEN EN RIJNLAND. TEVENS ORGAAN VAN DE VEREENIGING ,,OUD-LEIDEN”. 1930-1931. (DRIE-EN-TWINTIGSTE DEEL)
• Leidsch Dagblad | 20 oktober 1930 | pagina 1 (1/12), http://leiden.courant.nu/issue/LD/1930-10-20/edition/0/page/1

Publications

N/A

Wiki and VIAF

Wiki Data: N/A
VIAF: N/A

BIO

Dissertation: N/A

Highest degree: doctor

Fields of interest:
N/A

Biography:
N/A

Residence

• Zutphen 

Occupation

N/A

Education

N/A

Membership

• Nederlands Natuur- en Geneeskundig Congres
  member [..1890] - 1895

Provenance

• Ledenlijst Vereeniging het Nederl. Natuur- en Geneesk. Congres (1890).

Publications

N/A

Wiki and VIAF

Wiki Data: N/A
VIAF: N/A

BIO

Dissertation: N/A

Highest degree: N/A

Fields of interest:

• scientific instruments
• navigation
• cartography

Biography:
Gerard Hulst van Keulen was a publisher, chart maker and navigational instrument maker in the Nieuwebrugsteeg in Amsterdam. Son of Joannes van Keulen (2). He added his grandmothers name 'Hulst' to his family name. After the death of his father, in 1755, he, his brother Cornelis Buijs van Keulen, and their mother lead the publishing and instrument making firm 'In de Gekroonde Lootsman'. After Cornelis' death in 1779 the firm was split up, whereby his widow Buijs van Keulen continued the anchor foundry. The instrument making and publishing business remained in the hands of Gerard Hulst van Keulen until his death in 1801. In 1792 he received a patent from the States of Holland for a circular dividing engine. From 1787 until his death in 1801 he was a member of the commission for implementing modern methods of finding longitude at sea, and improving sea charts (the 'Commissie tot de zaaken het bepaalen der lengte op zee en de verbeetering der zeekaarten betreffende'). Hulst van Keulen made navigating instruments, including cross staffs, octants, sextants, reflecting circles, compasses, astronomical and and mathematical instruments. After his death, his widow Anna Hendrina Calkoen, continued the business under the name 'Wed. Gerard Hulst van Keulen'.

Collections: Museum Boerhaave, Leiden, Universiteitsmuseum, Utrecht, Teylers Museum, Haarlem, Scheepvaartmuseum, Amsterdam, Noordelijk Scheepvaartmuseum, Groningen, Fries museum, Leeuwarden.

Residence

N/A

Occupation

• Instrument maker 1779 - 1801, Amsterdam
• book trader 1757 - 1801, Amsterdam
• kaartenmaker der O.I. Comp. 1757 - 1801

Education

N/A

Membership

• Provinciaal Utrechtsch Genootschap van Kunsten en Wetenschappen
  Ordinary member 6 nov 1783; Contributing member 12 nov 1783 1783 - 1802
• Maatschappij van Verdiensten onder de Zinspreuk ‘Felix Meritis, departement Natuurkunde
  member 24-09-1784
• Wiskundig Genootschap onder de zinspreuk ‘Een onvermoeide Arbeid komt alles te boven’ - AmsterdamAmsterdam
  member 1788~
• Oeconomischen Tak - HaarlemAmsterdam
  gecommitteerde tot de commissie der Zeevaart-, Werktuig- en Scheikunde 1788~
• Vaderlandsch fonds ter Aanmoediging van 's Lands Zeedienst
  commissaris en mede-oprichter 1781 - 1801
• Commissie tot de Zaaken het bepalen der Lengte op Zee en de verbetering der Zeekaarten betreffende
  member 1787 - 1801

Provenance

• Mörzer Bruyns, W.F.J. 'The Cross-Staff Ten Years Later: An Update with Recently Found Examples', in: Bulletin of the Scientific Instrument Society 80 (2004).
• Lalande, J.J. de 'Voyage de Hollande', Paris, Bibliothèque de l’Institut de France, Ms 2195, p. 73, 87-88.
• Keulen, E.O. van, W.F.J. Mörzer Bruyns, et al, 'In de Gekroonde Lootsman': het kaarten-, boekuitgevers en instrumentenmakershuis Van Keulen te Amsterdam 1680-1885. (Utrecht 1989).
• Rooseboom, M. Bijdrage tot de geschiedenis der instrumentmakerskunst in de noordelijke Nederlanden. (Leiden 1950).
• Vries, D. de (et al.), The Van Keulen cartography, Amsterdam 1680-1885. (Alphen a/d Rijn 2005).
• Mörzer Bruyns, W.F.J. Schip recht door zee : de octant in de Republiek in de achttiende eeuw. (Amsterdam 2003).
• “Naamlijst der heeren leden des genootschaps”, in: Kunst-oefeningen over verscheide nuttige onderwerpen (Amsterdam 1788).
• "Naamlijst der commissarissen van het Vaderlandsch Fonds ter aanmoediging van 's Lands zeedienst", in: G.M.W. Acda, Ph.M. Bosscher, N.D.B. Habermehl, H.E. Kuipers en G.J.A. Raven, Tot een rechtschapen en kloke zeeman toe te rusten (1785-1985). Tweehonderd jaar kweekschool voor de zeevaart en hogere zeevaartschool Amsterdam (Zutphen 1985) 209.
• Kuile, S. ter and W.F.J. Morzer Bruyns, Amsterdamse kompasmakers ca.1580-ca.1850. (Amsterdam, 1999) 73.
• Morzer Bruyns, The Cross-Staff: History and Development of a Navigational Instrument. (Amsterdam/Zutphen, 1994)

Publications

N/A

Wiki and VIAF

Wiki Data: Q30524289
VIAF: http://viaf.org/viaf/61853258

BIO

Dissertation: N/A

Highest degree: N/A

Fields of interest:

• scientific instruments
• cartography
• navigation

Biography:
The Weduwe G. Hulst van Keulen was a retailing firm of navigating instruments and manuals, charts, and sea-atlases, from 1801-1885. After Gerard Hulst van Keulen died in 1801, his widow Anna Hendrika Calkoen, continued selling mainly imported navigating instruments, charts and books.The firm then no longer made instruments, except perhaps for compasses. After Anna's death in 1810, her grandson Johannes Gerard Hulst van Keulen van de Velde took over the firm, but he sold it in 1823. Thereafter it was continued by several owners under the name of 'Weduwe G. Hulst van Keulen', until it was liquidated in 1885. That year the inventory was auctioned by G.D. Bom HGz. In 1834 and 1835 various instruments were sold to 'Felix Meritis'.

Collections: Museum Boerhaave, Leiden, Scheepvaartmuseum, Amsterdam.

Residence

• Amsterdam 1770~ - 1810

Occupation

• Retailer of scientific and nautical instruments 1801 - 1810, Amsterdam

Education

N/A

Membership

N/A

Provenance

• Keulen, E.O. van, W.F.J. Mörzer Bruyns et al, . (Utrecht 1989).
• Kuile, S. ter and W.F.J. Mörzer Bruyns, Amsterdamse kompasmakers ca.1580-ca.1850. (Amsterdam 1999).
• Mörzer Bruyns, W.F.J. The cross-staff : history and development of a navigational instrument. (Amsterdam/Zutphen 1994).
• Bom HGz., G.D. Bijdragen tot eene geschiedenis van het geslacht 'Van Keulen' als boekhandelaars, uitgevers, kaart- en instrumentmakers in Nederland (Amsterdam, 1885).

Publications

N/A

Wiki and VIAF

Wiki Data: N/A
VIAF: http://viaf.org/viaf/290519866

BIO

Dissertation: N/A

Highest degree: Dr.

Fields of interest:

• medicine

Biography:
N/A

Residence

• Amsterdam 1892 - 1894
• Meppel 1894 - 1895
• Zaandijk 1895 - 1930
• Driehuizen [1930..]

Occupation

N/A

Education

N/A

Membership

• Nederlands Natuur- en Geneeskundig Congres
  member [..1890] - 1896

Provenance

• Ned Tijdschr Geneeskd. 1942;86:1449
• Ned Tijdschr Geneeskd. 1932;76:2966-7
• Ned Tijdschr Geneeskd. 1946;90:191-2

Publications

N/A

Wiki and VIAF

Wiki Data: N/A
VIAF: N/A

BIO

Dissertation: N/A

Highest degree: doctor

Fields of interest:
N/A

Biography:
N/A

Residence

• Medemblik 

Occupation

N/A

Education

N/A

Membership

• Nederlands Natuur- en Geneeskundig Congres
  member [..1890] - 1895

Provenance

• Ledenlijst Vereeniging het Nederl. Natuur- en Geneesk. Congres (1890).

Publications

N/A

Wiki and VIAF

Wiki Data: N/A
VIAF: N/A

BIO

Dissertation: N/A

Highest degree: N/A

Fields of interest:

• art history

Biography:
N/A

Residence

• Groningen 

Occupation

N/A

Education

N/A

Membership

• Koninklijke Nederlandsche Akademie van Wetenschappen
  Member Afd. Letterkunde 28-05-1969

Provenance

• Gerson, H.K., Jaarboek 1978, p. 163-172 door K.G. Boon.

Publications

N/A

Wiki and VIAF

Wiki Data: Q1603744
VIAF: http://viaf.org/viaf/111543026

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BIO

Dissertation: N/A

Highest degree: doctor

Fields of interest:
N/A

Biography:
N/A

Residence

• Delft 

Occupation

N/A

Education

N/A

Membership

• Nederlands Natuur- en Geneeskundig Congres
  member [..1890]

Provenance

• Ledenlijst Vereeniging het Nederl. Natuur- en Geneesk. Congres (1890).

Publications

N/A

Wiki and VIAF

Wiki Data: N/A
VIAF: N/A

BIO

Dissertation: N/A

Highest degree: Dr.

Fields of interest:

• medicine

Biography:
Eerste geneesheer, plaatsvervangend directeur Buitengasthuis, Amsterdam

Residence

• Amsterdam 

Occupation

N/A

Education

N/A

Membership

• Nederlands Natuur- en Geneeskundig Congres
  member [..1890]

Provenance

• Ledenlijst Vereeniging het Nederl. Natuur- en Geneesk. Congres (1890).
• https://www.ntvg.nl/system/files/publications/1893107990003a.pdf
• Ned Tijdschr Geneeskd. 1876;20:404 https://www.ntvg.nl/sites/default/files/migrated/1876104040001a.pdf
• Ned Tijdschr Geneeskd. 1875;19:11 https://www.ntvg.nl/sites/default/files/migrated/1875100110001a.pdf
• Haarlem's Dagblad | 30 september 1925 | pagina 10 (10/10) http://nha.courant.nu/issue/HD/1925-09-30/edition/0/page/10
• Ned Tijdschr Geneeskd. 1925;69:1389, https://www.ntvg.nl/sites/default/files/migrated/1925213890001a.pdf

Publications

N/A

Wiki and VIAF

Wiki Data: N/A
VIAF: N/A

BIO

Dissertation: N/A

Highest degree: N/A

Fields of interest:

• medicine

Biography:
"chirurgijn"

Residence

N/A

Occupation

• Chirurgijn 1782~, Maarssen

Education

N/A

Membership

• Natuur- en Geneeskundige Correspondentie Societeit in de Vereenigde Nederlanden - ’s HageUtrecht
  contributing member 1782

Provenance

• 'Naamlijst der H.H. Leden van de Algemeene Natuur en Geneeskundige Correspondentie-Societeit', in: Verhandelingen van de Natuur- en Geneeskundige Correspondentie-Societeit ('s Gravenhage 1783).

Publications

N/A

Wiki and VIAF

Wiki Data: N/A
VIAF: N/A

BIO

Dissertation: N/A

Highest degree: N/A

Fields of interest:

• medicine

Biography:
Medical Doctor

Residence

N/A

Occupation

• Medical Doctor 1783~

Education

N/A

Membership

• Natuur- en Geneeskundige Correspondentie Societeit in de Vereenigde Nederlanden - ’s HageAmsterdam
  contributing member 1783

Provenance

• 'Naamlijst der H.H. Leden van de Algemeene Natuur en Geneeskundige Correspondentie-Societeit', in: Verhandelingen van de Natuur- en Geneeskundige Correspondentie-Societeit ('s Gravenhage 1783).

Publications

N/A

Wiki and VIAF

Wiki Data: N/A
VIAF: N/A

BIO

Dissertation: N/A

Highest degree: Dr.

Fields of interest:

• medicine

Biography:
N/A

Residence

• Pijnacker 

Occupation

N/A

Education

N/A

Membership

• Nederlands Natuur- en Geneeskundig Congres
  member [..1890]

Provenance

• Ledenlijst Vereeniging het Nederl. Natuur- en Geneesk. Congres (1890).
• http://forms.tvpijnacker.nl/content/tvpijnacker/content/wijdtepraet/wp2011/maart2011.pdf
• Pijnacker in oude ansichten deel 2. J.P. Lalleman

Publications

N/A

Wiki and VIAF

Wiki Data: N/A
VIAF: N/A

BIO

Dissertation: N/A

Highest degree: N/A

Fields of interest:
N/A

Biography:
N/A

Residence

• Amsterdam 

Occupation

N/A

Education

N/A

Membership

• Nederlands Natuur- en Geneeskundig Congres
  member [..1890]

Provenance

• Ledenlijst Vereeniging het Nederl. Natuur- en Geneesk. Congres (1890).

Publications

N/A

Wiki and VIAF

Wiki Data: N/A
VIAF: N/A

BIO

Dissertation: N/A

Highest degree: N/A

Fields of interest:

• art history

Biography:
N/A

Residence

• Dilbeek 

Occupation

N/A

Education

N/A

Membership

• Koninklijke Nederlandsche Akademie van Wetenschappen
  Foreign Member Afd. Letterkunde 29-05-1978

Provenance

• Hulst, R.-A. d’, Levensberichten en herdenkingen 1997, p. 15-18 door J. Bruyn.

Publications

N/A

Wiki and VIAF

Wiki Data: Q19754106
VIAF: http://viaf.org/viaf/2545238

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