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- W4377098533 abstract "In this note, we present a pedagogical illustration of peculiar properties of motion in the vicinity of and inside black holes. We discuss how a momentary impulse can modify the life-time of an object radially falling into a Schwarzschild black hole down to singularity. The well-known upper limit for a proper time spent within a horizon, in fact, requires an infinitely powerful kick. We calculate the proper time interval (perceived as the personal lifetime of a falling observer) till the contact with the singularity, as well as the time interval in the Lemaître frame (which reflects how far into the future of the outer world a falling observer can look), for different values of the kick received by the falling body. We discuss the ideal strategy to increase both time intervals by an engine with a finite power. This example is suitable for university seminars for undergraduate students specializing in general relativity and related astrophysical subjects." @default.
- W4377098533 created "2023-05-20" @default.
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- W4377098533 date "2023-05-19" @default.
- W4377098533 modified "2023-10-17" @default.
- W4377098533 title "How to Delay Death and Look Further Into the Future if You Fall Into a Black Hole" @default.
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- W4377098533 doi "https://doi.org/10.1007/s12045-023-1602-8" @default.
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