Okay, so I'm nearly a total zombielet, so it's light blogging for me tonight, literally.
Did you hear about the 107 year old lightbulb in the firestation in Livermore, California? It is claimed this lightbulb has been turned off only a handful of times. Yet here it is burning on. This gives the lie to the proponents of new bulbs which have to be changed more frequently. What does this early bulb have that new bulbs don't??? Or, rather, what do newer, shorter-lived bulbs have that this century-old bulb doesn't have?
Why aren't manufacturerers emulating this very old, efficient bulb, rather than splitting hairs and involving mercury in the process?