Paint your week in technicolor! Loving this @physicsfun video on our Explo Monochromatic Room!⠀ ⠀ Repost—Monochromatic Room: a photo of colorful San Francisco is illuminated by a very narrow frequency band of light, with a wavelength of 589nm- the characteristic spectrum of sodium vapor lamps at low pressure. Seeing color is both about the source of illumination and how an object interacts with light. Here a white LED flashlight can momentarily “paint” the scene with color. Sodium vapor lights are a type of gas-discharge lamp that uses sodium metal vapor in an excited state with two dominant spectral lines at 589.0 and 589.6nm, producing the bright yellow light in this exhibit. 🌟 #physics #physicstoy #physicsfun #sodiumvapor #sodiumvapourlamp #monochromatic #monochromaticlight #excitation #dischargelamp #electronexcitation #colorvision #exploratorium #ignitecuriosity (at Exploratorium)
