vie: tốc độ ánh sáng

Information
has URI	http://lexvo.org/id/term/vie/t%E1%BB%91c%20%C4%91%E1%BB%99%20%C3%A1nh%20s%C3%A1ng

Meaning
means	(noun) the speed at which light travels in a vacuum; the constancy and universality of the speed of light is recognized by defining it to be exactly 299,792,458 meters per second speed of light, light speed, c