- #1
Chiefly
- 8
- 2
Watching the bubble that formed on top of my Gin and Tonic was interesting.
First I noticed a fine stream of bubbles coming up under a larger surface bubble. The fine stream, about 5-10 per second were just visible.
The surface bubble moved around some 1/4 or 1/2 diameter of the bubble in what seemed random directions.
I assumed this was surface tension from the micro bubbles affecting the big bubble. Fascinating.
Then one instance the bubble moved away by say 10mm or 2 x dia of the bubble. The fine stream of micro bubbles now turned toward the surface bubble in a gentle arc from what appeared to be 20mm below the surface. The stream of micros continued to merge with the bubble until it burst.
By the way it was my first G&T so the mind was clear.
What forces would pull the micros to the bubble even though it was up to 15 or 20mm away from the overhead. I cannot think surface tension can extend underwater so what is the force or attraction involved here?
Thanks
First I noticed a fine stream of bubbles coming up under a larger surface bubble. The fine stream, about 5-10 per second were just visible.
The surface bubble moved around some 1/4 or 1/2 diameter of the bubble in what seemed random directions.
I assumed this was surface tension from the micro bubbles affecting the big bubble. Fascinating.
Then one instance the bubble moved away by say 10mm or 2 x dia of the bubble. The fine stream of micro bubbles now turned toward the surface bubble in a gentle arc from what appeared to be 20mm below the surface. The stream of micros continued to merge with the bubble until it burst.
By the way it was my first G&T so the mind was clear.
What forces would pull the micros to the bubble even though it was up to 15 or 20mm away from the overhead. I cannot think surface tension can extend underwater so what is the force or attraction involved here?
Thanks