"Sagan" as a Unit of Measurement

Carl Sagan was an American cosmologist, astronomer, and absolute tireless champion of the sciences in the public sphere. He was the author, co-editor, or editor of almost two dozen science books, and the host the award-winning 1980 television series Cosmos. Sagan was well known for his excitement in talking about science, especially cosmological issues, and would strongly enunciate the M sound in millions and the B sound in billions to emphasize just how big the numbers were and properly differentiate them for the audience.

Between his strong enunciation, a chapter in one of his popular books called “Billions and Billions”, and a Johnny Carson skit parodying Sagan’s love of the billions and billions of stars out there, the public came to associate Sagan with the phrase. In light-hearted tribute to Sagan, fans of his work and his tireless drive to bring science into the public eye, began using his surname, Sagan, as a unit of measurement. A Sagan signifies a quantity over four billion because, at minimum, billions and billions would have to be at least two plus two billion.


From the trademark "Billions and Billions." "Billions" is plural, meaning greater than two, so billions and billions at minimum equals four.

Folksonomies: science geek fun sagan

/art and entertainment/books and literature (0.506670)
/business and industrial/company/earnings (0.295483)
/science/physics/space and astronomy (0.289858)

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Billions:Country (0.878038 (negative:-0.525642)), Carl Sagan:Person (0.549346 (positive:0.648214)), Johnny Carson:Person (0.101264 (neutral:0.000000)), co-editor:JobTitle (0.097204 (neutral:0.000000)), editor:JobTitle (0.077877 (neutral:0.000000))

Carl Sagan (0.968428): dbpedia | freebase | opencyc | yago
Johnny Carson (0.750489): website | dbpedia | freebase | opencyc | yago
Ann Druyan (0.578709): dbpedia | freebase | yago
Measurement (0.569941): dbpedia | freebase
Cosmos: A Personal Voyage (0.498628): website | dbpedia | freebase
Units of measurement (0.491067): website | dbpedia | freebase | yago
Billions and Billions: Thoughts on Life and Death at the Brink of the Millennium (0.478863): dbpedia | freebase
Scientific method (0.473461): dbpedia | freebase

 Sagans, An Informal Unit Of Measurement, Signify What?
Electronic/World Wide Web>Blog:  Fitzpatrick, Jason (10/14/2012), Sagans, An Informal Unit Of Measurement, Signify What?, How-To-Geek, Retrieved on 2013-01-28
  • Source Material [www.howtogeek.com]
  • Folksonomies: terminology