Lighting a particular area, and falls within a given solid angle. The SI unit for luminance is candela per square metre (cd/m). The CGS unit of luminance is the stilb, which is equal to one candela per square centimetre or 10 kcd/m. The amount of useful light emitted from a source or the luminous flux is measured in lumen (lm). The SI unit of illuminance and luminous emittance, being the luminous power per area, is measured in Lux. It is used in photometry as a measure of the intensity, as perceived by the human eye, of light that hits or passes
A Measure of Salvation ends the torture with a look of pity on her face. Adama tells Roslin that the Cylons were killed before they had a chance to download to the Resurrection Ship, and that the plan to infect the Cylons with the virus has failed. Roslin believes there are only two possible suspects and asks what Adama is going to do about an investigation. Adama believes the device was a marker, and that they are definitely on the right track to finding Earth. Roslin agrees with this, but points out that if the humans are on the right track to Earth, then