Drake Equation

The Drake Equation: 50 Years of Giving Direction to the Scientific Search for Life Beyond Earth
By Sarah Scoles and Sue Ann Heatherly (National Radio Astronomy Observatory) ...

The Drake Equation has held sway over SETI for the last fifty years, so only a brief reminder of its contents and history should be required.

Drake Equation: How Many Of Them Are Out There?
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Drake Equation
While numerous theories and principles attend to the Fermi paradox, the one most closely related is the Drake equation. It was formulated by Dr.

Drake Equation Expression that gives an estimate of the probability that intelligence exists elsewhere in the galaxy, based on a number of supposedly necessary conditions for intelligent life to develop.

DRAKE EQUATION - Method of estimating the number of intelligent, technological species (i.e., able to communicate with other species) in existence in our Galaxy.

Drake equation: A formula for the number of communicative civilizations in our galaxy.
dust tail (type II): The tail of a comet formed of dust blown outward by the pressure of sunlight. (See gas tail.) ...

Drake equation
In 1961, University of California, Santa Cruz
University of California, Santa Cruz ...

Drake equation and the anthropic principle
While numerous theories and principles attend to the Fermi paradox, the two most closely related are the Drake equation and the anthropic principle.

DRAKE EQUATION
The Drake equation is a formula for estimating the possible number of intelligent civilizations in our galaxy. Most of the terms in this equations are unknown.

Drake equation - (n.)
An approach to estimating some of the factors in guessing at the number of communicating civilizations in the galaxy.
drifting (signal) - (n.) ...

The Drake Equation
One important aspect of the search is that it encompasses a very wide range of subjects and can be taught across the curriculum. A broad view of the topic can be found in the cornerstone of SETI, the "Drake Equation.

PAUSE when you see Carl Sagan begin to explain the Drake Equation. FOCUS: Ask students to pay close attention to each value substituted in the Drake Equation. RESUME. PAUSE when Carl Sagan has solved the equation and obtained an answer.

Some contend that the number of planets with intelligent extraterrestrial life can be estimated from the Drake equation if and when we ascertain the values of its variables.

Drive a rover on Mars; roll a proton ball to knock down bowling pins; create a bacterial community; and use the Drake Equation to search for intelligent life. This site has more than 20 games.
"Cassini at Saturn" Interactive Explorer ...

DRAKE, FRANK
Frank Drake (1930-) is an American radio astronomer who, in 1961, formulated an equation for very-rough estimates of the possible number of intelligent civilizations in our galaxy (the Drake equation).

[73][74] The frequency of occurrence of such terrestrial planets is one of the variables in the Drake equation which estimates the number of intelligent, communicating civilizations that exist in our galaxy.[75] ...

Drake Equation
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See also: Planet, Solar, Universe, Earth, Astronomy