Instagram post by Vasiliy S. Znamenskiy • May 21, 2017 at 3:17pm UTC
Instagram post by Vasiliy S. Znamenskiy • May 21, 2017 at 3:17pm UTC0 Likes, 1 Comments - Vasiliy S. Znamenskiy (@znamenski) on Instagram: “Physics Problem”
Posted by Vasiliy S. Znamenskiy on 21 май 2017, 15:17
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