a: Diffusion ~
b: tree branches
What:
"Diffusion is the concept from experimental science. Molecules will move cross cell membranes, form high concentration to a low concentration. To me, diffusion is like tree branches. The starting point is the root. And it distributes the nutrition to the branches, and then sub-branches, finally reach to the tip. "
Useful?
Writer: Qing Wang
LCC:
Where:
Date: Dec 30 2013 6:49 PM
# 4535 Critique Analogy