AST201H1 Midterm: AST201 Test 1 Lecture notes
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AST201H1 Full Course Notes
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> trick question: if light behaves like a ball, then it would have speed of. 200mph + c in #2 (however this doesn"t make sense in real life since #6: some unbreakable rules (law of physics): Light always travels at c in a vacuum. Speed of light is invariant: time dilation: the different time flow between different reference frames, space and time are not separate things; they are bounded together by the speed of light into a single entity called space-time . A stays in earth and b travels to star alpha century in 0. 6c. In all occasions except when b takes a u-turn in alpha century, both of them sees each other"s clocks running slower. When b takes a u-turn in alpha century, he has a jerk and his time frame suddenly changes; only at that moment b suddenly sees a"s clock running fast (this is complicated stuff, don"t worry about the reasoning)
