it travels at about 128,609 miles per second!
Yes, they travel some fast!
Copper is opaque to light - light can not travel though it.
the speed of light
it can travel from 380nm [nanometres] to 740nm
Darkness is the absence of light and will therefore travel at the speed of light (6x108m/s)
yes
at the speed of light
Speed of light.
Approx 9.46 trillion km.
Yes ... in a vacuum.
no from what i have learned light travels faster then sound
Nothing can travel faster than light in a vacuum.