The following equation results
from the basic model 6.3:
It can be assumed that ancient civilizations emerge from the multitude of space traveling civilizations. Therefore F_{z} =
225:7,301 and F_{Liz}
= 1:4089.Inserting all values (F _{e} = 0.1) into equation
7.3.1:N _{ue1} = (100-300)·10^{9} · 1:15,000
· 1:69 · 1:4089 · 1:6N_{ue1}
= 4 – 12 „Earth 2“ with old civilizationsInserting all values (F _{e} = 0.01) into equation
7.3.1:N _{ue2} = (100-300)·10^{9} · 1:15,000
· 1:691 · 1:4089 · 1:6N_{ue2}
= 1 – 2 „Earth 2“ with old civilizationsThe two results can then be summarized to the following statement:
The probability of a habitable
"Earth 2" with an old technological
civilization in solar-like star systems, in our galaxy,
is then:
F |

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