refractive index
plural of curranto
plural of warp drive
(humorous) Alternative letter-case form of Pokeyman.
(physics) The ratio of the speed of light in air or vacuum to that in another medium.
ダイヤモンドでは、光が真空中で進む速さとダイヤモンド中で進む速さの比率によって、光が大きく屈折してきらめきます。
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