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Transcript of IOP
Einstein's Theory of Relativity
Arrow of Time
Sean Carroll, a Theoretical Physicist at Caltech
Entropy In other words... Time is hard to define Time is... Major subject of study but, defining it without circularity proves impossible When did you feel obsessed with time? Vignettes June 18, 1905 May 8, 1905 Time is a dimension in which events can be ordered from the past through the present into the future
Time is the measure of durations of events and the intervals between them Religion
Science Diverse fields all incorporate some notion of time into their respective measuring systems Industry
Theater Time is what clocks measure
Time is what keeps everything from happening at once Time is one of the 7 fundamental physical quantities in the International System of Units Circularity of definition Operational
Social Importance Observing a certain number of repetitions of one standard cyclical event constitutes one standard unit Is time "felt" as a sensation or an experience? The science of time keeping. Periodic motion and events
have long served as standards for units of time Economic Value: "Time is Money"
Personal Value: Awareness of the limited time in each day and human life spans The people in these vignettes were slaves to time Every notion of time has consequences "Time" that humans created is perhaps more detrimental than effective. How will we know?