1
Q
Intensity
A
The amount of light received / detected (also called “flux”).
2
Q
The Inverse Square Law
A
The amount of light received / detected depends on the distance to the source squared: I ~ [1 / d^2].
3
Q
Polar Molecules
A
Molecules that are not perfectly symmetric, and thus appear to carry a charge.
They can exert electrical forces on other charged molecules.
Astrobiology
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