I know light year travel by light and earth year travel by time. Can you calculate how many light year equal to one earth year coz light is faster.
Indeed, a light year is the DISTANCE light travels in one year, it is not a time. If you, for reasons unclear to me..., want to know the distance in meters that light travels in one (earth) year, multiply the velocity of light (3 * 10^8 m/s) by the number of seconds in an Earth year (I always remember that that number of seconds is appr. pi * 10^7 seconds ;-)
Consider you are traveling at light speed so at earths 1 year, you will travel 1 light year far. when you end your travel it ll like you don't spend any time.
A light year is more of a unit of measuring distance than time. A light year is simply traveling at the speed of light (187,000 miles per second) for one year non-stop. This would mean traveling in one year 95,863,680,000 miles... Now, it does get interesting if you travel for one year at the speed of light away from earth, then another year at the speed of light coming back to earth. You will have aged 2 years, but more than 20 would have gone by on earth (I know my mathmatics on this are wrong, anyone feel free to calculate the actual time difference). Hope this helps Z
One light year is the distance light will travel in 365 days (1 Earth year)
They are two different physics. It's like trying to calculate how many volts of milk are in a cup; you can't. A light year is a distance: BASED ON EARTH TIME. Hence: They're not comparable.
