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2 results
In this video, we'll explore nature and some amazing things you can see in and around Calgary. From the Bow River to the Rocky ...
1,214 views
3 years ago
Из Евклидова пространства убран шар и заменён на шар пространства Лобачевского. Это даёт оптический эффект: если ...
191 views
7 years ago
