a: high energy photon ~
b: golf balls
What:
"That threshold energy is near the ultraviolet part of the electromagnetic spectrum, thousands of times more energetic than cell phone radio waves. UV, X-rays and gamma rays cause cancer. These photons are like golf balls, whereas radio photons are like cotton balls. You can throw millions of cotton balls against a window; it just won't break."
Useful?
Writer: Christopher Wanjek
LCC:
Where:
Date: Jan 10 2014 7:00 PM
# 4666 Critique Analogy