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Sunday, February 24, 2019

Post #89 Delays in getting real time views from a distant source.

If our eyes have ultra power vision to see across several light years distance, will the light from several light years distance still need to reach us to get vision from such far distances without delay from real time occurings? Is it about our defective vision that stars several million kilo metres away could be seen from its past/we get delayed vision or is it about light travelling from that distance should reach us to give us delayed vision from the source of the view of stars ?

Sunday, February 10, 2019

Post #88 Infrared picture of an object many light years away.

Imagine if the whole Universe is totally dark and, if there is a giant thermal camera big enough and that thermal camera giving the picture of an object many light years away. How is that thermal picture of that object different from normal picture of an object in light conditions many light years away ? Is it the same result we get if we study both the pictures to calculate the age of the Universe ?