Science Fact of the Day September 26, 2009
Posted by spatialrift47 in SFoTD.trackback
If the sun popped out of existence four minutes ago, we wouldn’t know it for another 4 minutes and 20 seconds.
the extraordinary science behind ordinary phenomena
If the sun popped out of existence four minutes ago, we wouldn’t know it for another 4 minutes and 20 seconds.
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