Candela was chosen so that the new definition would precisely match the old definition. Although the candela is now defined in terms of the second (an SI base unit) and the watt (a derived SI unit), the candela remains a base unit of the SI system, by definition. If a source emits a known luminous intensity "I" (in candelas) in a well-defined cone, the total luminous flux "Φ" in lumens is given by where "A" is the "radiation angle" of the lamp—the full vertex angle of the emission cone. For example, a lamp that emits 590 cd with a radiation angle
What Does the Bee Do? the bomb that Slater set explodes, badly burning one of them. "What Does The Bee Do?" is a children's poem from the late 1800s by Christina Rossetti. Margaret Schroeder's daughter recites it in the episode. "IGN" gave the episode a score of 8.5 out of 10, saying that it "effortlessly hits that sweet spot between advancing the plot while developing characters, much in the same way that the Season 2 premiere did." "The A.V. Club" rated the episode an "A-". The episode was watched by 2.546 million viewers. It fell two tenths, to 1.0 million adults 18-49 rating. What Does