a: molecular clock ~
b: atomic clock
What:
"So we don't know which one will be fixed. We do know how many will be fixed. So this is why the molecular clock is like an atomic clock; it's driven by radioactive decay. We don't know how many atoms--we don't know which atom will decay, but in a second we know how many will, for a given radioactive substance."
Useful?
Writer: Professor Stephen Stearns
LCC:
Where:
Date: Mar 18 2017 6:52 PM
# 11064 Critique Analogy