Literary nonsense from a combination of both sources. Though not the first to write this hybrid kind of nonsense, Edward Lear developed and popularized it in his many limericks (starting with "A Book of Nonsense", 1846) and other famous texts such as "The Owl and the Pussycat", "The Dong with a Luminous Nose," "" and "The Story of the Four Little Children Who Went Around the World". Lewis Carroll continued this trend, making literary nonsense a worldwide phenomenon with "Alice's Adventures in Wonderland" (1865) and "Through the Looking-Glass" (1871). Carroll's poem "Jabberwocky", which appears in the latter book, is often considered quintessential
Luminous intensity is most sensitive to greenish-yellow light at 555 nm. Light with the same radiant intensity at other wavelengths has a lower luminous intensity. The curve which measures the response of the human eye to light is a defined standard, known as the luminosity function. This curve, denoted "V"(λ) or formula_1, is based on an average of widely differing experimental data from scientists using different measurement techniques. For instance, the measured responses of the eye to violet light varied by a factor of ten . Luminous intensity should not be confused with another photometric unit, luminous flux, which is the total