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Category Archives: Huygens

Spinoza: Not As Abused As Is Said

Two Kinds of Disparagment Found In the Huygens Letters I am looking at the references to Spinoza made by Christiaan Huygens, coming to them with the expectation that they would reveal a general disparagement of the man, either in terms of his optical knowledge, or in terms of his person, for these letters have been characterized as proof of [...]

The Text of van Gutschoven’s Letter to Huygens No. 1148

[Posted here is the full original text of Huygens letter 1147, for which there are some comments here A Method of Grinding Small, Spherical Lenses: Spinoza ] No. 1147. [G. van Gutschoven] à [Christiaan Huygens]. [1663] Apendice au No. 1146. Instrumentum ad vitra minoris sphaerae terenda. Laminam eream AB schamno tornatorio affixam excavabis secundum circulum CD cuneo [...]

Huygens’s Comments On Spinoza’s Theory of the Microscope to His Brother

[Opening Comment: I post below an extensive excerpt from a significant letter by the hand of Christiaan Huygens. It is has been cited by biographers for two main reasons. For one, the initial sentence is stated as evidence for Huygens' regard for apparently an argument or demonstration that Spinoza had put to him in Voorburg, one possibly with some conjunction with Johannes Hudde: "It [...]

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