Kip. 1: New Science Lesson 1 - Orbital Elevators and Orbital Ropeways
Ilirushwa tarehe 24 Februari 2012
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Vipindi
- Kip. 1 · New Science Lesson 1 - Orbital Elevators and Orbital Ropeways
- Kip. 2 · New Science Lesson 2 - The Core of the Milky Way and Black Holes