November 5, 2009
(1) developed a scale commonly depicted as (2). (3) extrapolated it and says that we are approximately around 0.7 on that scale today. This scale is a staple theme in sci-fi. Identify 1, 3 and the scale.
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- Nikolai Kardashev
- Kardashev Scale
- Carl Sagan
(1) devised (2) as a scale to measure the “state” of technological advancement of civilizations. (3) put earth at a “0.7” on this scale.