Colour | cyan wavelength
UncoverthroughsciencewhatmakesblackcolorthewayitisandhowresearchersaredevelopingtherealpureversionofblackSeeallvideosforthisarticle[1]Newtondemonstratedthatcolourisaqualityoflight.Tounderstandcolour,therefore,itisnecessarytoknowsomethingaboutlight.Asaformofelectromagneticradiation[2],lighthaspropertiesincommonwithbothwavesandparticles.Itcanbethoughtofasastreamofminuteenergypacketsradiatedatvaryingfrequenciesinawavemotion[3].Anygivenbeamoflighthasspecificvalues[4]offrequency[5],wavelength,and...
Uncover through science what makes black color the way it is and how researchers are developing the real pure version of black
See all videos for this article[1]Newton demonstrated that colour is a quality of light. To understand colour, therefore, it is necessary to know something about light. As a form of electromagnetic radiation[2], light has properties in common with both waves and particles. It can be thought of as a stream of minute energy packets radiated at varying frequencies in a wave motion[3]. Any given beam of light has specific values[4] of frequency[5], wavelength, and energy associated with it. Frequency, which is the number of waves passing a fixed point in space in a unit of time, is commonly expressed in units of hertz[6] (1 Hz = 1 cycle per second). Wavelength is the distance between corresponding points of two consecutive waves and is often expressed in units of metres—for instance, nanometres (1 nm = 10−9 metre). The energy of a ...