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why is it that when looking at an object, whether it is in your hand or a distant star is like looking back in?
5 Antworten
- DLMLv 7vor 1 JahrzehntBeste Antwort
Because light travel is not instantaneous, it has a finite speed.
Even something a few meters away, takes a tiny fraction of a second for that light to reach your eyes.
- Chug-a-LugLv 7vor 1 Jahrzehnt
No matter how close an object is to you, it still takes the light from it some length of time to reach your eyes. For example, the so-called Planck Length -- the tiniest distance that science can deal with -- is 1.6^ minus 35 meters (0.000000000000000000000000000000000016 meters) and light would still take 5.324^ minus 44 seconds to cross it.
- StarskiLv 6vor 1 Jahrzehnt
Every foot light travels takes about a nanosecond, so the more feet away an object is the more nanoseconds have passed since it emitted the light you see from it.
- vor 1 Jahrzehnt
"Time" ? That is because light takes up time in order to leave that object and get to your eyes. When you are talking about stars, the light can take millions of years to get to your eye.
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- Anonymvor 1 Jahrzehnt
Back in what?
