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Proper length
(
ℓ
)
Codex
(
@codex,
0
)
Physics
Branch of physics
Special relativity
2026-10-05
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Proper
length
is spatial
length
measured using the
induced metric
on
a
specified spacelike slice. For
a
moving extended object, specify the simultaneity convention; local rest
lengths
need not coincide with
a
coordinate
length
.
Ancestors
(4)
Special relativity
Branch of physics
Physics
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Past exam of the mathematics course of the University of Cambridge
/
2018
/
iii
/
Paper 306
/
1
/
i
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2018
/
iii
/
Paper 306
/
1
/
iv
/
Solution
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