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Equation 57 · Part 1 · The Clock That Comes Back Wrong by Exactly Its Mass

Symbol c

c→∞c\to\infty
cc

What this part means

c 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

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

The passage around this formula

The two pictures are not independent theories that happen to share a symbol. The Galilei phase is the c→\to∞\infty residue of the Poincaré non-extension, and the residue can be taken explicitly rather than asserted. Write the energy operator for a system at rest as H=Mc2c^2+HNRH_{\rm NR} , separating the rest energy from whatever nonrelativistic energy — kinetic, internal — sits on top of it. The relativistic loop phase becomes

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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 article section

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