Why is the sky blue?
Everyone knows that the sky is blue, but not everyone understands why the sky appears blue. Why is the sky often blue rather than another color? Above the Earth's surface ...
Tag: visible light
The reason the universe is dark despite having many shining stars
Why is the Universe Dark? Could it be that Someone Forgot to Pay the Electric Bill? Not Quite!The dark and blackness of space is due to our universe expanding.Our Sun ...
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