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? What Does the Bee Do? "What Does the Bee Do?" is the fourth episode of the second season of the HBO television series "Boardwalk Empire", and 16th episode overall. First aired on October 16, 2011, it was written by executive story editor Steve Kornacki and directed by Ed Bianchi. Nucky looks to Rothstein for a port to receive alcohol, since the Coast Guard is blockading Atlantic City. Rothstein instructs Lansky and Luciano to oversee the Philadelphia delivery. Nucky also sends Owen Sleater to bomb Doyle's still. Margaret asks for 'money for the children' from Nucky, which she proceeds to hide