....all the people sat in the street of the house of God, trembling because of this matter, and for the great rain. Ezra 10:9
"In heavy rain, raindrops can hurt.
But imagine that you are an
insect, or the leaf of a plant—those raindrops at terminal velocity are
like bullets hitting your surface.
Q: Why are small things not damaged?
A: It turns out that such biological surfaces have a structure at the
microscopic scale that is hydrophobic (water repelling).
Researchers
found that the rain drops just bounce off such surfaces.
Q: How?
A: The droplets spread as they hit what looks like a rough surface,
covered in micro-bumps. A shock-wave forms, creating tiny holes in the
upper surface of the droplet. Then the holes join up, the droplet
shatters and rebounds off the leaf or insect. This reduces the contact
time by 70%." CMI