Named for its creator, astrophysicist Frank Drake, the Drake equation is an attempt to estimate N, the number of advanced civilizations in the Milky Way galaxy. Many of the numbers that go into the Drake equation can only be guessed at, for example, the factor L, the average lifetime of an advanced civilization.
According to Drake, the average of people's best estimates suggests that there are about 10,000 technically advanced civilizations spread across our galaxy.
NOTE: Above information has been taken from wikipedia and/or official websites of topics.
The Drake Equation is used to estimate the number of communicating civilizations in the cosmos, or m ...DetailsMore Onlines