Friday, December 21, 2007

snowflakes 2...

baka naman tanungin nyo ko paano kaya nangyari ang ganun na snowflakes??? kaya nag-research na ko sa internet...


ganito daw yun:
eto pa sabi nila:
The story begins up in a cloud, when a minute cloud droplet first freezes into a tiny particle of ice. As water vapor starts condensing on its surface, the ice particle quickly develops facets, thus becoming a small hexagonal prism. For a while it keeps this simple faceted shape as it grows. As the crystal becomes larger, however, branches begin to sprout from the six corners of the hexagon (this is the third stage in the diagram at right). Since the atmospheric conditions (e. g. temperature and humidity) are nearly constant across the small crystal, the six budding arms all grow out at roughly the same rate. While it grows, the crystal is blown to and fro inside the clouds, so the temperature it sees changes randomly with time. But the crystal growth depends strongly on temperature (as is seen in the morphology diagram). Thus the six arms of the snow crystal each change their growth with time. And because all six arms see the same conditions at the same times, they all grow about the same way. The end result is a complex, branched structure that is also six-fold symmetric. And note also that since snow crystals all follow slightly different paths through the clouds, individual crystals all tend to all look different.

hayan... ganun daw pala...

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