Physics, Astronomy & Cosmology / Re: If nothing is faster than light, how can we look back in time with a telescope?« on: 25/05/2018 10:11:14 »
This, from Stephen Whiston - @whizzer666 - on Twitter today:We don't "look back" to the big bang as if it happened a long distance away. In a sense it happened everywhere.
"I have always not been able to reconcile the fact - nothing is faster then the speed of light - yet we look back to the big bang through our telescopes - honesty how does that work? Can you explain?"
Who can help with this?
As far as looking into the past we do it all the time. It takes light and sound a finite time to travel the two or three feet between two people having a conversation. In that sense we're communicating with others in the past. In fact most of what we actually experience occurred in the past.
Evan - The atomic mass becomes before the chemical symbol, not after it. I.e. What you wrote., i.e. Fe60 should be written as 60Fe.
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