Science
- R2, a symbol for the coefficient of determination of a linear regression
- R2, the two-dimensional vector space of real numbers in mathematics
- R2: Risk of explosion by shock, friction, fire or other sources of ignition, a risk phrase in chemistry
- R2 RNA element, a cis-acting element identified in R2 retrotransposons which is involved in priming the reverse transcription process
- ATC code R02 Throat preparations, a section of the Anatomical Therapeutic Chemical Classification System
- Haplogroup R2 (Y-DNA), a human Y-chromosome haplogroup
- receptor 2, the second in line of a series of cellular receptors, generally at the end of an acronym
- Robonaut 2, a humanoid robotic development project conducted by the Dextrous Robotics Laboratory, deployed on the International Space Station
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Famous quotes containing the word science:
“You are all fundamentalists with a top dressing of science. That is why you are the stupidest of conservatives and reactionists in politics and the most bigoted of obstructionists in science itself. When it comes to getting a move on you are all of the same opinion: stop it, flog it, hang it, dynamite it, stamp it out.”
—George Bernard Shaw (1856–1950)
“Every known fact in natural science was divined by the presentiment of somebody, before it was actually verified.”
—Ralph Waldo Emerson (1803–1882)
“After science comes sentiment.”
—Herman Melville (1819–1891)