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adrianN
on July 20, 2018
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Traveling to the Sun: Why Won't Parker Solar Probe...
Lightnanoseconds are a useful measure in everyday life as well. A lightnanosecond is about 30cm, or 1 foot.
https://www.youtube.com/watch?v=1-vcErOPofQ&feature=youtu.be...
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https://www.youtube.com/watch?v=1-vcErOPofQ&feature=youtu.be...