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Lorentz factor
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Physics
Concepts in physics
Physical phenomena
Doppler effects
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The
Lorentz factor
, denoted by the Greek letter
gamma
(
γ)
, is
a
factor that arises in the theory of
special relativity
. It describes how much
time
,
length
, and relativistic
mass
increase
as
an object approaches the
speed of light
.
Ancestors
(5)
Doppler effects
Physical phenomena
Concepts in physics
Physics
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Lorentz factor
by
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Created
2026-09-24
Updated
2026-09-24
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For
speed
v
<
c
, the
Lorentz factor
is
γ
=
1
−
v
2
/
c
2
1
.
(1)
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