I have 2 Century lamps and wanted to open them, for no reason really. I opened while the lamps were off/cold and heated them with small plates on top. I noticed some changed right away... took much longer for them to heat up, some strange wave action rippled through the liquid, the clear liquid lamp immediately became slightly cloudy.
I closed them while the lamps were on/hot, and then turned them off.
Can anyone tell me what might have happened to them and if this will cause problems?