Equation 115 · Part 1 · The Bend an Elevator Cannot Fake
Symbol y
What this part means
y is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.
Its job in the formula
y is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.
Full expression→Symbol y→Article meaning
The passage around this formula
…, exactly the ordinary Newtonian tidal tensor of tower and satellite geodesy [ 15 , 14 ] . The first derivative alone, meanwhile, recovers the textbook gravitational redshift these networks were already built to measure: y g h/ , first isolated in a laboratory tower by Pound and Rebka to about ten percent precision [ 11 ] , later confirmed to about seventy parts per million by a hydrogen maser flown to ten thousand kilometres and compared against its own ground twin over a two-way microwave link…
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
- [11] Apparent Weight of Photons ↗
- [12] Test of Relativistic Gravitation with a Space-Borne Hydrogen Maser ↗
- [8] Atomic Clock Performance Enabling Geodesy Below the Centimetre Level ↗
These citations provide research context; check each source for the exact claim it supports.