Welcome to Pehr Sallstrom's writings

They are mainly devoted to various aspects of human colour vision. Some articles concern sense perception in general. They may even tentatively touch upon technological as well as epistemological issues.

With smartphone, use horisontal display!

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THE ENIGMA OF COLOUR

• Holistic concepts in colour research

• Goethe, Newton and the physics of colour

• What is yellow?

• Monochromatic Rays of Shadow - a video documentation

• A Study of Inverted Spectra

• The Interplay of Goethe- and Newton-Spectra

• On the compatibility of Goethe's colour theory with that of Newton

• Colour and Physics (Once again on the Goethe-Newton compatibility)

• Two Colour Projection Phenomena

• Goethe's Dynamic Colour Circle

• Goethe and the Boundary Colours

• Ideal Colours - what is that?

• Transparency and Whiteness

• Chromatic Addaptation and Colour Constancy

 

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QUERIES AND SUGGESTIONS

• Why is the sky blue?

• Is the red rose still red at night?

• The enigmatic bright line at the horizon

• How can red plus green make yellow?

• An exhibition with exclusively ideal colours?

• White noise - or silence?

• Mirrors and virtual images

• The magic of shadows

 

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EDUCATIONAL

• Tom and John

• Using a PC in colour education

• Using a PC to help the understanding of colorimetry

• Visualizing the relation SPD <=> colour

• List of educational videos

 

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MISCELLANEOUS

• Creative use of symbolic notation

• The possibility of the impossible

• The holistic character of physical concepts

• The essence of dialogue

 

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Contact me on pehr@pscolour.eu

About me: 

Have a nice time!    

Kan du svenska så finns mer att läsa på min hemsida pehrsallstrom.se

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This page. texts.htm at pscolour.eu   original 2010-10-15, latest update 2023-06-18