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Description

Dr. Professor Applejack

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Edit History (8)
dead source
47127 safe
2188196 artist:thepingaslord
18 applejack
201715 g4
2044201 apple
21408 fancy mathematics
263 hooves
26226 math
975 teacher
1242 unshorn fetlocks
47939
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furrypony
Cosmia Nebula - For Patreon supporters
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Bronze Supporter - Bronze Patron
Friendship, Art, and Magic (2018) - Celebrated Derpibooru's six year anniversary with friends.
Not a Llama - Happy April Fools Day!
An Artist Who Rocks - 100+ images under their artist tag
Artist -

hopelessly sad filly
The second I saw it, I knew it was a legitimate derivation of conic orbit in the two-body problem of Newtonian Gravitation.
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