Why can we see the light from a source from afar, but

  • #1
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Main Question or Discussion Point

Not be able to feel the heat from afar, only up close? And heat can take form in all kinds of radiation right? So why is it that infrared radiation is always used to describe heat?
 

Answers and Replies

  • #2
We can feel the heat from a distant star - you just need a rather sensitive thermometer.

250px-IRAS_overview.jpg
 

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