NATS 1880- Midterm Exam Guide - Comprehensive Notes for the exam ( 12 pages long!)
11 Oct 2017
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Document Summary
Why is interstellar travel so difficult: the tyranny of distance. If pioneer 10 were to cover the 4. 4 light-years to alpha centauri at the same average speed at which it travelled to jupiter, the journey would take 115,000 years. The cosmic speed limit will almost certainly remain in place. Could we travel to the stars with existing rockets: a rocket operates by newton"s third law of motion (law of conservation and momentum: for every action there is an equal and opposite reaction). 13. 2: spacecraft for interstellar travel: to achieve interstellar space travel, the two technologies can be broken into two: Conventional technologies that is within our grasp even though we do not have it yet. Technologies that are theoretically possible but far beyond our present capabilitie. Also ended because of budget: project daedalus (britain interplanetary society). They might also forget what they are travelling for, and might not even know how to land the spacecraft.
