more from Kenelm Digby

Single Idea 16731

[catalogued under 26. Natural Theory / A. Speculations on Nature / 7. Later Matter Theories / b. Corpuscles]

Full Idea

The origin of all colours in bodies is plainly deduced out of the various degrees of rarity and density, variously mixed and compounded.

Gist of Idea

Colours arise from the rarity, density and mixture of matter


Kenelm Digby (Two treatises [1644], I.29.4), quoted by Robert Pasnau - Metaphysical Themes 1274-1671 22.5

Book Reference

Pasnau,Robert: 'Metaphysical Themes 1274-1671' [OUP 2011], p.506

A Reaction

We are still struggling with this question, though I think the picture is gradually become clear, once you get the hang of the brain. Easy! See Idea 17396.

Related Ideas

Idea 16726 Why can't we deduce secondary qualities from primary ones, if they cause them? [Buridan]

Idea 17396 The colour of gold is best explained by relativistic effects due to fast-moving inner-shell electrons [Scerri]