Findings:

• Illumination riddle: Grass
• Wolfgang Köhler
• Georges J.F. Köhler
• Blackpool Illuminations
• ILLUMINATIONS (user)
• Dark Stars and Other Illuminations
• Global Illumination
• Phong illumination model
• illumination equation
• global illumination model
• Illuminations
• Illumination
• Peter Anspach : Illumination
• Illumination riddle: Wheel
• Silent Illumination
• Illumination riddle: River
• Illumination riddle: Coin-toss
• Illumination riddle: Bubble

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