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Earth and Sun
(ciechanow.ski)
21 points
by
mmackh
6y ago
↗ HN
2 comments
[
4.8 ms
]
story
[
17.8 ms
]
thread
[–]
marzetti
6y ago
↗
Thank you! A beautiful article!
[–]
DrScump
6y ago
↗
This is awesome. This would be useful for every science teacher and student.
2 comments
[ 4.8 ms ] story [ 17.8 ms ] thread