The Twins Stay in Touch

The Twins Stay in Touch - The Twins Stay in Touch To try to...

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The Twins Stay in Touch To try to see just how the difference in ages might develop, let us imagine that the twins stay in touch with each other throughout the trip. Each twin flashes a powerful light once a month, according to their calendars and clocks, so that by counting the flashes, each one can monitor how fast the other one is aging. The questions we must resolve are: If the brother, on earth, flashes a light once a month, how frequently, as measured by her clock, does the sister see his light to be flashing as she moves away from earth at speed 0.6 c ? How frequently does she see the flashes as she is returning at 0.6 c ? How frequently does the brother on earth see the flashes from the spaceship? Once we have answered these questions, it will be a matter of simple bookkeeping to find how much each twin has aged. Figuring the Observed Time between Flashes To figure out how frequently each twin observes the other’s flashes to be, we will use some results from the previous lecture, on time dilation. In some ways, that was a very small scale
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This note was uploaded on 11/09/2011 for the course PHY PHY2053 taught by Professor Davidjudd during the Fall '10 term at Broward College.

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The Twins Stay in Touch - The Twins Stay in Touch To try to...

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