AfterimageAn afterimage, or after-image, is an image that continues to appear in the eyes after a period of exposure to the original image. An afterimage may be a normal phenomenon (physiological afterimage) or may be pathological (palinopsia). Illusory palinopsia may be a pathological exaggeration of physiological afterimages. Afterimages occur because photochemical activity in the retina continues even when the eyes are no longer experiencing the original stimulus.
SpectrumA spectrum (pl.: spectra or spectrums) is a set of related ideas, objects, or properties whose features overlap such that they blend to form a continuum. The word spectrum was first used scientifically in optics to describe the rainbow of colors in visible light after passing through a prism.
Immanuel KantGerman philosopher (1724–1804)Immanuel Kant (born Emanuel Kant; 22 April 1724 – 12 February 1804) was a German philosopher. Born in Königsberg in the Kingdom of Prussia, he is considered one of the central thinkers of the Enlightenment.
RetinaPart of the eyeThe retina (from Latin rete 'net'; pl. retinae or retinas) is the innermost, light-sensitive layer of tissue of the eye. The optics of the eye create a focused two-dimensional image of the visual world on the retina, which then processes that image within the retina and sends nerve impulses along the optic nerve to the visual cortex to create visual perception.
Philosophical realismPhilosophical realism—usually not treated as a position of its own but as a stance towards other subject matters—is the view that a certain kind of thing (ranging widely from abstract objects like numbers to moral statements to the physical world itself) has mind-independent existence, i.e. that it exists even in the absence of any mind perceiving it or that its existence is not just a mere appearance in the eye of the beholder.
Arthur SchopenhauerArthur Schopenhauer (22 February 1788 – 21 September 1860), also known as the “Philosopher of Pessimism”, was a German philosopher and writer. He is known for his 1818 work The World as Will and Representation (expanded in 1844), which characterizes the phenomenal world as the manifestation of a blind and irrational noumenal will.
Theory of ColoursTheory of Colours (German: Zur Farbenlehre, lit. 'On color theory') is a book by Johann Wolfgang von Goethe about the poet's views on the nature of colours and how they are perceived by humans. It was published in German in 1810 and in English in 1840. The book contains detailed descriptions of phenomena such as coloured shadows, refraction, and chromatic aberration. The book is a successor to two short essays titled "Contributions to Optics" (German: Beiträge zur Optik).
Johann Wolfgang von GoetheJohann Wolfgang von Goethe (28 August 1749 – 22 March 1832) was a German polymath who is widely regarded as the most influential writer in the German language. His work has had a wide-ranging influence on literary, political, Christian views, and philosophical thought in the Western world from the late 18th century to the present.
Isaac NewtonSir Isaac Newton ( ; 4 January 1643 [O.S. 25 December 1642] – 31 March 1727 [O.S. 20 March 1726]) was an English polymath who was a mathematician, physicist, astronomer, alchemist, theologian, historian and inventor. He was a key figure in the Scientific Revolution and the Enlightenment that followed.
PhysiologyPhysiology (; from Ancient Greek (phúsis)'nature, origin' and (-logía)'study of') is the scientific study of functions and mechanisms in a living system. As a subdiscipline of biology, physiology focuses on how organisms, organ systems, individual organs, cells, and biomolecules carry out chemical and physical functions in a living system.
AristotleAristotle (Ancient Greek: Ἀριστοτέλης, romanized: Aristotélēs; 384–322 BC) was an ancient Greek philosopher and polymath. His writings span the natural sciences, philosophy, linguistics, economics, politics, psychology, and the arts. As the founder of the Peripatetic school of philosophy in the Lyceum in Athens, he began the wider Aristotelian tradition that followed, which set the groundwork for the development of modern science.German languageGerman (Deutsch, pronounced [dɔɪ̯tʃ] ) is a West Germanic language in the Indo-European language family, mainly spoken in Western and Central Europe. It is the majority and official (or co-official) language in Germany, Austria, Switzerland, and Liechtenstein. It is also an official language of Luxembourg, Belgium and the Italian autonomous province of South Tyrol, French autonomous region of Alsace and as well as a recognised national language in Namibia.*As an Amazon Associate I earn from qualifying purchases.