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  1. Newsgroups: sci.physics
  2. Path: sparky!uunet!darwin.sura.net!jvnc.net!news.edu.tw!news!Uz.nthu.edu.tw!clwu
  3. From: clwu@Uz.nthu.edu.tw (Ching-Long Wu (PHYS U790315))
  4. Subject: The Bubbles
  5. Message-ID: <1992Jul28.105101.16100%clwu@Uz.nthu.edu.tw>
  6. Organization: National Tsing Hua University (HsinChu)
  7. Date: Tue, 28 Jul 1992 10:51:01 GMT
  8. Lines: 28
  9.  
  10. Hello everyone!
  11.    I am quite interested in the behavior of the bubbles that floating
  12. on water's surface. I have several questions:
  13.  
  14. 1. What's the shape of it? Is it a perfect semi-sphere?
  15. 2. Why does it break? And what's the machanism of it's breaking?
  16. 3. I suppose there are some relation between a bubble's 'life' and 'size'.
  17.    I think of an experiment like this:
  18.                                                                   
  19.                  meter                //                                   
  20.             |++++|++++|++++|++++|+++  ||     |                        
  21.             |-----------O---O---------||-----|                        
  22.             |         bubbles    O    ||     |                          
  23.             |                   O     //     |                        
  24.             |                       O        |                                                                            
  25.             \--------------------------------/                                                                                                
  26.    When a bubble appears on the surface, mesure its diameter immediately and
  27. start the time counting till it breaks. Has any one done such kind of
  28. experiment? What's it look like?
  29.  
  30. 4. What if the bubbles are floating in the air? If there is no gravitation,
  31. will them break?
  32.  
  33.    I hope you are also interested in these questions...
  34.  
  35. Dragon
  36. clwu@Uz.nthu.edu.tw
  37.                                                                
  38.