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Equation 67 · Part 3 · The Bend an Elevator Cannot Fake

Symbol A

Δt=2ΩA/c2≈2(7.292×10−5)(2.5×1011)/(8.988×1016)≈4.1×10−10 s\Delta t = 2\Omega A/c^2 \approx 2(7.292\times10^{-5})(2.5\times10^{11})/(8.988\times10^{16}) \approx 4.1\times10^{-10}\,\mathrm s
AA

What this part means

A is one of the signed contributions combined to compute the quantity on the left.

Its job in the formula

A is one of the signed contributions combined to compute the quantity on the left.

The passage around this formula

A loop opens, instead, whenever some edge’s own realization is not simply a difference of two corotating nodes’ W . The clearest documented case is the relativistic Sagnac effect: a synchronization or comparison signal that does not itself corotate with the network — a one-way satellite time…

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Learn the underlying idea

A variable is a named place for a value. Its letter is a local label: x can mean position in one formula and a data point in another.

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Sources cited in the surrounding passage

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