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This is fairly amateur but I'm not an engineer so:
If you have a drop of water on a table and you stick a straw in it some of the water goes up the straw until gravitational force equals the capillary force.
Am I right in saying, (generally):
1) If you have a small drop of water hanging from a ceiling and stick a long straw in it the water starts going in it will keep going until there is no drop left and keep going until it reaches the end of the straw and then fall out the bottom.
2) If you have a large drop with a short straw capillary forces will draw water in but once water reaches the end of the straw it wont fall out the bottom because there is still some drop left at the top, so no air can get into tube?
Cheers
If you have a drop of water on a table and you stick a straw in it some of the water goes up the straw until gravitational force equals the capillary force.
Am I right in saying, (generally):
1) If you have a small drop of water hanging from a ceiling and stick a long straw in it the water starts going in it will keep going until there is no drop left and keep going until it reaches the end of the straw and then fall out the bottom.
2) If you have a large drop with a short straw capillary forces will draw water in but once water reaches the end of the straw it wont fall out the bottom because there is still some drop left at the top, so no air can get into tube?
Cheers