Prismatic+spectrum
61Rainbow — For other uses, see Rainbow (disambiguation). Double rainbow and supernumerary rainbows on the inside of the primary arc. The shadow of the photographer s head on the bottom marks the centre of the rainbow circle (antisolar point). A rainbow is… …
62Diamond simulant — Due to its low cost and close visual likeness to diamond, cubic zirconia has remained the most gemologically and economically important diamond simulant since 1976. The high price of gem grade diamonds, as well as significant ethical concerns of… …
63Generation IV reactor — Generation IV reactors (Gen IV) are a set of theoretical nuclear reactor designs currently being researched. Most of these designs are generally not expected to be available for commercial construction before 2030, with the exception of a version …
64rainbow — 1. noun /ˈreɪnbəʊ/lang=en a) A multicoloured arch in the sky, produced by prismatic refraction of light within droplets of rain in the air. a rainbow of possibilities b) Any …
65Variegation — (Roget s Thesaurus) < N PARAG:Variegation >N GRP: N 1 Sgm: N 1 variegation variegation Sgm: N 1 colors colors dichroism trichroism Sgm: N 1 iridescence iridescence play of colors polychrome maculation spottiness striae …
66Material properties of diamond — This article addresses the material properties of diamond. For a broader discussion of diamonds, see diamond. For other uses of the word diamond, see diamond (disambiguation). Diamond An octahedral diamond crystal in matrix Gener …
67Optics — For the book by Sir Isaac Newton, see Opticks. Optical redirects here. For the musical artist, see Optical (artist). Optics includes study of dispersion of light. Optics is the branch of …
68Chromatic aberration — On top is corner detail in a photograph taken with a higher quality lens; bottom is a similar photograph taken with a wide angle lens showing severe visible lateral chromatic aberration. The effect is pronounced on the right side of the building… …
69Gas-cooled fast reactor — The Gas Cooled Fast Reactor (GFR) system is a nuclear reactor design which is currently in development. Classed as a Generation IV reactor, it features a fast neutron spectrum and closed fuel cycle for efficient conversion of fertile uranium and… …
70Shades of green — Main article: Green Green   Spectral coordinates  Wavelength 520–570 nm …
