Published equation contexts

$y_2-y_1$

Why this formula appears here

Take each edge’s fractional-frequency comparison uncertainty to be $\sigma_y$ = 1 $\times$ 10^{-18} , the stability optical clocks have already demonstrated is what centimetre-level geodesy requires [ 8 ] . The combined noise on the independent-edge difference $y_2$ - $y_1$ is $\sqrt2$ \, $\sigma_y$ . Setting signal equal to noise, $\phi_{,zz}$ \, $h^2$ = $\sqrt2$ \, $\sigma_y$ , gives

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y_2

Symbol y_2

$y_2$ is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

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y_1

Symbol y_1

$\sqrt2$ \, $\sigma_y$ .

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How to interpret it

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Research cited beside this formula

[8] Atomic Clock Performance Enabling Geodesy Below the Centimetre Level ↗

Published contexts (1)

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y_2-y_1

Equation 137 · Evolutionary Physics

The Bend an Elevator Cannot Fake

This mathematical expression combines the displayed quantities; its precise role follows from the surrounding article text.