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12 hours ago · Thus, he observed that colour is the result of objects interacting with already-coloured light rather than objects generating the colour themselves. This is known as Newton's theory of colour. [65] Illustration of a dispersive prism separating white light into the colours of the spectrum, as discovered by Newton
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12 hours ago · Abū Bakr al-Rāzī (full name: أبو بکر محمد بن زکریاء الرازي, Abū Bakr Muḥammad ibn Zakariyyāʾ al-Rāzī), [a] c. 864 or 865–925 or 935 CE, [b] often known as (al-)Razi or by his Latin name Rhazes, also rendered Rhasis, was a Persian physician, philosopher and alchemist who lived during the Islamic Golden Age. He ...
12 hours ago · Pink is the color [2] of a namesake flower that is a pale tint of red. [3] [4] It was first used as a color name in the late 17th century. [5]According to surveys in Europe and the United States, pink is the color most often associated with charm, politeness, sensitivity, tenderness, sweetness, childhood, femininity, and romance.
12 hours ago · A photon (from Ancient Greek φῶς, φωτός (phôs, phōtós) 'light') is an elementary particle that is a quantum of the electromagnetic field, including electromagnetic radiation such as light and radio waves, and the force carrier for the electromagnetic force. Photons are massless particles that always move at the speed of light ...
12 hours ago · Ancient Egyptian race controversy. The Ancient Egyptian classification of ancient peoples (from left to right): a Libyan, a Nubian, an Asiatic, and an Egyptian. Drawing by an unknown artist after a mural of the tomb of Seti I; Copy by Heinrich Menu von Minutoli (1820). In terms of skin colour, the Libyan has the lightest complexion, followed by ...
12 hours ago · The history of scientific method considers changes in the methodology of scientific inquiry, not the history of science itself. The development of rules for scientific reasoning has not been straightforward; scientific method has been the subject of intense and recurring debate throughout the history of science, and eminent natural philosophers and scientists have argued for the primacy of ...
12 hours ago · Psilocybin, also known as 4-phosphoryloxy-N,N-dimethyltryptamine (4-PO-DMT), and formerly sold under the brand name Indocybin, [a] is a naturally occurring psychedelic prodrug compound produced by more than 200 species of fungi. Psilocybin is itself biologically inactive but is quickly converted by the body to psilocin, which has mind-altering ...
