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Graham S

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  • Question about the twins paradox in relativity?

    OK, I get time dilation, if I travel away from earth at relativistic speeds then when I return I will have experienced less time than my twin on Earth who has grown old and died. So my question is, If I observe that the universe is 14 Billion years old, how much time has passed for the first photons in the big bang? How old would those photons think they were in Earth years if they were capable of thinking about it?

    8 AnswersAstronomy & Space1 decade ago

  • How do I remove the starter motor from a '79 Fiat?

    I think the darn thing has siezed and I want to give it a clean. I do not have access to a full garage or car stands, so I want to get at it from the top. The car is pre-fuel injection with a single 34" Weber carb.

    1 AnswerMaintenance & Repairs1 decade ago