Chapter 4 part 2 Zee

Chapter 4 part 2 Zee - a physicist calculating the lifetime...

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In the second part of Chapter 4, Zee brought us back to the example of the train and throwing a ball. However, this time instead of the ball he used light to illustrate his point. The observer on the train and the ground should have different perceptions of what is happening because of the speeds at which they are traveling. However, the speed of light is seen the same when looked upon by the two observers. It is independent of the speed because light is a property of Nature while the ball being thrown was a result of the observer. However, time perceived by each party is thought of as different in terms of each one believes the other as longer. Time is just a measurement when used as a counter for moments passing because other units of passing time exist. An example of this would
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Unformatted text preview: a physicist calculating the lifetime of a particle in terms other than that of the typical Western minutes and months. Zee also explains how one can go no further than returning to the space it was in during proper time. In addition to time, physicists also consider space in that they calculate both factors when recording an event. In the end, time is able to be transformed but it is dependant on space. I still find much of physics complex but what I did fully understand was how Physics could be considered simpler when observed deeper. I also have a better understanding of how time could be elastic in that there are infinite ways of measuring it outside of watches and calendars....
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