a: absorption spectrum ~
b: fingerprint
What:
"An absorption spectrum is like a fingerprint; every element and compound will absorb one or more wavelengths of light. By determining *which* wavelengths are missing, the astronomer can deduce it's being absorbed by a specific element or molecule."
Useful?
Writer: quantumclaustrophobe
LCC:
Where:
Date: Dec 2 2014 7:14 PM
# 6559 Critique Analogy