3 ms·
I suspect that the capillary action is started by microscopic scratches in the plastic formed when the plastic cups are removed from the molds they were shaped
by janekm 4y ago
I suspect that the capillary action is started by microscopic scratches in the plastic formed when the plastic cups are removed from the molds they were shaped over. This may explain all or some of the capillary effect.
- foobarian 4y agoShould be easy to verify by suspending some surfaces ~1cm away from the side of the container to see if there is any deposition occurring by vapor.
- Buttons840 4y agoIt happens in glass too, as shown in one of the pictures.
- flobosg 4y agoGlass can have microscopic scratches that act as capillaries. Somewhat related: I remember one of my undergrad chemistry practicals where we had a supersaturated solution in a test tube. Scratching the inside wall of the tube produced tiny glass shards that induced precipitation of the solution.