Relativity clips http onestick comrelativity Als relativistic adventures












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Relativity clips http: //onestick. com/relativity/ - Al’s relativistic adventures Michelson Morley experiment animation: http: //galileoandeinstein. physics. virginia. edu/more_stuff/flashlets/mmexpt 6. htm Picture of apparatus: http: //www. dmae. upm. es/cienciaficcion/cartelera 2002/12 monos/archivos/relatividad/Fig 1. gif Simultaneity – Youtube clip: http: //www. youtube. com/watch? v=wteiuxyqto. M Length contraction (animation nearly at the end of the article): http: //www. phys. unsw. edu. au/einsteinlight/jw/module 4_time_dilation. htm Summary http: //www. youtube. com/watch? v=C 2 VMO 7 pc. Whg – shows transformation between coordinate frames moving with relative velocity v (Effects on momentum: http: //www. youtube. com/watch? v=04 WMUMs. AQv. U )
Maxwell’s equations
Relativity of space and time An ‘event’ – a point in space / time Time x Distance
Two events Event 2 Time x Separation in space-time Event 1 x Distance
From Einstein’s 1905 paper
Progression Through Time 0% Standing still in space (relative to an observer) means that you are progressing through the time dimension at the maximum possible rate. 100% Progression Through Space (v/c) Time Space
As you move faster through space, the rate that you progress through time has to decrease. Progression Through Time 0% 100% Progression Through Space (v/c) 25% Time Space
This effect of ‘time dilation’ increases with a factor of √(1 -v 2/c 2). That means time is 13% slower when travelling at 50% speed of light. Progression Through Time 0% 100% 50% Progression Through Space (v/c) Time Space
At 87% the speed of light, an hour passing in your frame would take two hours for a stationary observer. Progression Through Time 0% 100% 87% Progression Through Space Time Space
Progression Through Time 0% If you could eventually reach the 100% speed of light through space, your progression through time would stop altogether. 100% Progression Through Space (v/c) Time Space
From ‘Einstein’ by Michael White and John Cribbin In 1925 Bertrand Russell published a book on Relativity and predicted that it would result in a new way of thinking involving greater abstraction. This has not happened because of the lack of widespread understanding of theory.
“The most beautiful thing we can experience is the mysterious. It is the source of all true art and all science. Those to whom this emotion is a stranger, who can no longer pause to wonder and stand rapt in awe, are as good as dead: their eyes are closed. ” Albert Einstein