index of refraction
refractive index
lightspeed
speed of light
c
light speed
rapidity
light minute
light hour
SOL
high vacuum
luminous flux
luminal
subluminally
light second
special theory of relativity
special relativity theory
Einstein's special theory of relativity
acceleration
kilolight
special relativity
subvelocity
deceleration
flicker
Mach number
in vacuo
nonvacuum
sub-light
delta-v
instantaneous velocity
rest energy
Planck momentum
microturbulence
relativistic
Planck acceleration
faster-than-light
intervacuum
acoustooptics
subrelativistic
twink
cd
standard candle
candela
candle
light year
Sears-Haack body
semitransparent
muddy
nonrelativistic mechanics
light-year