Where does wobble collide?

In geophysics, wobble is the small free oscillation of the Earth's rotation axis relative to the solid body, so the pole traces a path at the surface rather than staying fixed; the dominant free mode is the Chandler wobble, with a period of about fourteen months. Munk and MacDonald's The rotation of the Earth: A geophysical discussion gives the mechanics of this polar motion and the excitation and damping that sustain it. The referent is a rotational instability of a spinning planet, measured by the displacement and period of the pole's path, and it is unrelated to loose base pairing in the genetic code beyond the shared image of something that does not sit still.[1]

Unit

The amplitude and period of the rotation pole's displacement

Recovery means

Not applicable

Measured by

Tracked by astronomical and geodetic determination of the pole's position over time, giving the wobble's amplitude, period, and damping

In molecular biology, wobble is the relaxed, non-standard base pairing allowed at the third position of a codon with the first position of the anticodon, so that a single transfer RNA can read several synonymous codons. Crick's 1966 Codon-anticodon pairing: the wobble hypothesis proposed the specific pairing rules that explain how fewer tRNAs than codons can translate the genetic code. The referent is a permitted looseness in nucleotide pairing at one position, defined by which codons a given anticodon can read, and it is an entirely different construct from the wobble of a planet's spin axis, joined only by the word.[2]

Unit

The set of codons a single anticodon can read through relaxed third-position pairing

Recovery means

Not applicable

Measured by

Inferred from the codons a given tRNA decodes and the base pairs permitted at the third codon position