Concepts
59 concepts
The ideas the research turns on, defined in the site's own words, with every answer and method that uses them.
N 4
NS
Narrowband signalA radio signal confined to a very small range of frequencies, which nature rarely makes.
NNomenclatorA cipher that pairs a substitution alphabet with a list of code groups for whole words and names.
NANon-gravitational accelerationA push on a body in orbit that gravity alone does not account for.
NMNull modelWhat the data would look like if nothing were going on, used to judge whether something is.