Brightness is also inversely proportional to sound level, which is why some people look quite bright untill you hear them speak.Brightness varies depending on distance. So the further away you are the dimmer the light source appears.
Brightness is also inversely proportional to sound level, which is why some people look quite bright untill you hear them speak.Brightness varies depending on distance. So the further away you are the dimmer the light source appears.
Well they never covered that gem when I was “exiled” for 4 months to AEI Lamp and Lighting at Buckie during my apprenticeship.Oooh! Time to be picky and show off
Luminance and Brightness are not the same thing.
Luminance, measured in Lumens, is a measure of the light emitted at the source and all things being equal is constant.
Brightness varies depending on distance. So the further away you are the dimmer the light source appears.
Todays lecture over.
When you did your apprenticeship they probably only had paraffin lamps!Well they never covered that gem when I was “exiled” for 4 months to AEI Lamp and Lighting at Buckie during my apprenticeship.
It must have been 4 months in summer when they don't need the lights on that far north!Well they never covered that gem when I was “exiled” for 4 months to AEI Lamp and Lighting at Buckie during my apprenticeship.
That would have been nice but unfortunately it was November to March. For a city teenager it was a pretty dismal experience being exiled from friends in such a small town. The work was interesting but the apres travail left much to be desired.It must have been 4 months in summer when they don't need the lights on that far north!