On Sun, 10 May 2015 15:02:50 -0500, wrote:

I was cleaning up around an old building on my propery. There is a lot
of debris scatterred around from the previous owner.

Anyhow, I found am old (incandescant) lightbulb outside, and it's half
full of water. There is no crack in the glass. The threaded base was

Water cooled light bulbs are more efficient and will run in more adverse
conditions. They can also be higher wattarger. One the size of a 100
watt lightbulb can safely carry 1000 watts, with commensurate
illumination.

partly pointing upward, so I assume the water entered thru the base, but
I know that even inside the base, the bulb's glass is supposed to be air
tight. I'm just curious how the water got inside?

And most amazing, is how the glass did not crack during the winter, when
the water froze....

Too bad the filament is gone, or I'd be tempted to apply power to it,
just to see what would happen!