Candela frequency and that has a radiant intensity in that direction of watt per steradian. The definition describes how to produce a light source that (by definition) emits one candela, but does not specify the luminosity function for weighting radiation at other frequencies. Such a source could then be used to calibrate instruments designed to measure luminous intensity with reference to a specified luminosity function. An appendix to the SI Brochure makes it clear that the luminosity function is not uniquely specified, but must be selected to fully define the candela. The candela is sometimes still called by the old name
What Does the K Stand For? What Does the K Stand For? What Does the K Stand For? is a BBC Radio Four sitcom series based on the experiences of comedian Stephen K. Amos growing up as a teenager in south London in the 1980s. The broadcast of the first series began in November 2013; the third series commenced in January 2017. Reviewing Series 1, Episode 1 for "Radio Times", Tristram Fane Saunders found the show suited Amos "down to the ground; there's a touch of "Seinfeld" about "What Does the K Stand for?" in the way it flows from stand up into a deliciously awkward