Willebrord Snellius

	Willebrord Snellius
	Willebrord Snel van Royen (1580–1626)
Gebore	13 Junie 1580; Leiden, Nederland
Oorlede	30 Oktober 1626 (op 46); Leiden, Nederland
Nasionaliteit	Nederlands
Vakgebied	Wiskunde, sterrekunde
Alma mater	Universiteit van Leiden
Bekend vir	Snel se Wet, dispersie

Willebrord Snellius^[1]^[2] (gebore as Willebrord Snel van Royen)^[3] (13 Junie 1580^[4]30 Oktober 1626) was 'n Nederlandse sterrekundige en wiskundige. Sy naam is gekoppel aan die wet van refraksie as Snell se Wet.^[5]

'n Krater op die Maan, Snellius is na hom vernoem. Die Nederlandse Vloot het drie skepe na hom vernoem insluitende die bestaande HNLMS Snellius (A802).

Verwysings

↑ Willebrord Snellius at the Leiden Digital Family Tree.
↑ Eerste Nederlandse Systematisch Ingerichte Encyclopaedie
↑ Encarta Winkler Prins, Grote Oosthoek, Eerste Nederlandse Systematisch Ingerichte Encyclopaedie
↑ Sometimes mistakenly noted as 1590 or 1591; Cf. P.C. Molhuysen; P.J. Blok, reds. (1927). "Snellius, Willebrord". Nieuw Nederlandsch biografisch woordenboek. Leiden..
↑ For a reconstruction of this discovery see Hentschel 2001. It is now known that this law was already known to Ibn Sahl in 984. The same law was also investigated by Ptolemy and in the Middle Ages by Witelo, but due to lack of adequate mathematical instruments (i.e. trigonometric functions) their results were saved as tables, not functions.

[1] Willebrord Snellius at the Leiden Digital Family Tree.

[2] Eerste Nederlandse Systematisch Ingerichte Encyclopaedie

[3] Encarta Winkler Prins, Grote Oosthoek, Eerste Nederlandse Systematisch Ingerichte Encyclopaedie

[4] Sometimes mistakenly noted as 1590 or 1591; Cf. P.C. Molhuysen; P.J. Blok, reds. (1927). "Snellius, Willebrord". Nieuw Nederlandsch biografisch woordenboek. Leiden..

[5] For a reconstruction of this discovery see Hentschel 2001. It is now known that this law was already known to Ibn Sahl in 984. The same law was also investigated by Ptolemy and in the Middle Ages by Witelo, but due to lack of adequate mathematical instruments (i.e. trigonometric functions) their results were saved as tables, not functions.

[1]

[2]

[3]

[4]

[5]