How does water evaporate from a sealed snow globe?
Many years ago, someone gave me a Precious Moments snow globe with a little figurine inside. The water used to be up to the top, now it’s about a quarter of the way down. It’s sealed and does not leak. How in the world did the water evaporate through the plastic??
Through humidity changes inside the globe.
December 17th, 2009 at 2:43 am
it wouldn’t evaporate until about 100degrees C but if it was that hot and the plastic was porous maybe but its probably just a leak
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December 17th, 2009 at 3:08 am
Interesting. Its possible that the plastic is slightly porous, allowing a tiny amount of water to pass through, not enough to feel, by enough to slowly leak the contents. Many common plastics are porous to water vapour too, so if there is a small gap of air above the water, possibly some of the water could escape by evapouration.
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December 17th, 2009 at 3:39 am
Through humidity changes inside the globe.
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December 17th, 2009 at 4:17 am
Microscopic wholes in the plastic allow for barely any water to get through, but over the years, the water that leaves the snow globe is enough for a noticeable difference. Same thing in why the latex doesn’t work all the time.
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