On 10/18/2012 1:35 PM, firstname.lastname@example.org wrote:
Enter the search term "massaging footbath" into your favorite search
engine. For about $30 you can get 1 new. You may even find a used one
at a Goodwill or Salvation Army store. If you are working, the $30
should be worth it to save 3 days of effort. If you're retired, or
chronically unemployed, just pump up your favorite music and enjoy the
cleaning project while you listen.
If you are careful not to immerse the first inch or so of the CFL lamp
where it emerges from the base, this foot bath device might do the job.
You'd have to experiment to find the most effective cleaning agent to
put in the water but I'd start with a dish washing liquid that cuts
grease, such as Dawn or Palmolive. If it doesn't do the job, at least
you can treat yourself to some relaxing foot baths.
You probably won't find too many people who feel the need to use more
than a feather duster or a quick blow of air from your mouth (if
anything at all) on their CFLs so you're probably on your own here.
Incandescent light bulbs do become dimmer as they get older, but that is
NOT due to dust accumulation on the light bulbs. It's entirely due to
the tungsten metal atoms from the filament coating the inside of the
bulb. So, this is something that cannot be removed by washing the
outside of the bulb.
Here, prove it to yourself: When you replace light bulbs that have
spent their lives in one position; such as vertical in the case of
freestanding floor or desk lamps, or horizontal in the case of bathroom
and bedroom light fixtures, or upside down as in the case of porch and
hallway lights, inspect the bulb when you remove it from the fixture.
You will notice that the top of the bulb always has the most darkening
on the inside of the glass. That's because incandescent light bulbs are
filled with an inert gas (most often argon), and convection of hot argon
gas off the hot tungsten filiment carries the tungsten atoms upwards,
thereby causing the topmost part of the bulb to darken the most.
Washing your light bulbs won't eliminate that darkening that happens
inside the bulb.
Yes, darkening due to tungsten evaporation is one of those little-known
effects that used to drive lamp engineers crazy in the early days of
incandescent lighting. Carbon filament lamps were worse since they were
vacuum lamps (no gas inside) and so blackened uniformly. Several types of
large, high-wattage stage/studio lamps used to be made with a half teaspoon
or so of loose grains of tungsten inside so that when they darkened, the
lamp could be removed and then shaken to swirl the tungsten around to scour
the inside of the glass.
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