Hey everyone, We'll meet as usual in ME 245 (110 Cummington Mall, Room 245) at 8pm on Tuesday. *ISDC at Toronto* Last meeting we voted in favor going to the International Space Development Conference at Toronto. First 5-10 minutes we'll talk about ISDC in detail. *Orbital Mechanics* I decided to skip Orbital Mechanics last week to give everyone a quick conceptual overview on various Propulsion Systems. This time we'll start with Orbital Mechanics and focus on the following topics. - Gravitation - Equations of Motion - Orbits: Circular, Elliptical - Trajectories: Parabolic, Hyperbolic Also here is a link to the presentation from previous meeting. https://drive.google.com/file/d/0B3GK4EgIQA0Jc2ZWMlJvWDBleFk/view?usp=sharing When we have time in future, we might tackle propulsion mathematically. Sincerely, Mehmet