Some information about "The shape of Raindrops"

Dear all of my classmates,

Before reading the following information, I believe the raindrops are spherical in shape when they begin to fall. But, after that, I don't know what happens to the shape of raindrops. According to Keith(2000), he said that the raindrops look like hamburger buns than teardrops as they fall. I have found some articles about the shape of raindrops. If you are interested in looking those information, please click the following websites for reference.

1. Raindrop Shape: No more tears
http://www.suite101.com/article.cfm/science_sky/9123/2

2. Raindrops, so many raindrops
http://www.islandnet.com/~see/weather/almanac/arc2000/alm00jul.htm

3. The shape of raindrops
http://www.eng.vt.edu/fluids/msc/my_pages/raindrops/raindrop.htm

4. Flowfield and the Shape of Raindrops
http://www.fluidmech.net/tutorials/raindrops/drop_flow.htm

5. General Properties of Raindrops and the Geometrical Optics Approximation
http://privatewww.essex.ac.uk/~onross/MSc/chap1.html

Reference:

1. Keith C. Heidorn (2000). The Weather Doctor's Weather Almanac Raindrops, So Many Raindrops. Retrieved 10 March, 2007, from http://www.islandnet.com/~see/weather/almanac/arc2000/alm00jul.htm