Why a lightyear is a measure of distance and time.
We all agree it is a measure of distance.
But when talking about things like how much time it takes someone/something to go a certain distance and we are using a lightyear scale, then lightyears can be a measure of time.
Eg: if we are traveling 10% the speed of light then it would take us 40 years to travel 4 lightyears. Provided I did the math right, doesn't that make lightyears a measure of time?
We all agree it is a measure of distance.
But when talking about things like how much time it takes someone/something to go a certain distance and we are using a lightyear scale, then lightyears can be a measure of time.
Eg: if we are traveling 10% the speed of light then it would take us 40 years to travel 4 lightyears. Provided I did the math right, doesn't that make lightyears a measure of time?
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