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| Name | What is Time? - AlwaysAsking.com |
| Video Uploader | Video From AlwaysAsking |
| Upload Date | This Video Uploaded At 05-09-2020 17:48:23 |
| Video Discription | What is time? Few things are so familiar and mysterious. Time is the most common noun in the English language. Our lives are governed by time, and yet we have so little understanding of it. In this episode, we consider what science has to tell us about time. We find that it is stranger than anyone could have imagined, at least, anyone before Einstein. Beginning: 00:00 Episode start: 00:25 The miracle year: 01:45 Special relativity: 03:37 Overturning tradition: 04:16 Strange predictions of special relativity: 05:30 Confirmations of special relativity: 07:36 Is the speed of light constant: 08:44 Ranging the moon: 10:05 Measuring time: 11:34 Atomic clocks: 12:53 Time dilation: 14:26 Testing time dilation: 15:53 Twin paradox: 17:32 Time dilation and GPS: 19:03 Significant time dilation: 20:25 Particle accelerators: 21:42 Length contraction: 23:27 Atmospheric muons: 23:44 Interstellar travel: 25:42 Length contraction on atomic scales: 27:30 Length contraction on astronomical scales: 28:39 Understanding special relativity: 29:33 Spacetime: 29:54 Spacetime and length contraction: 31:04 Spacetime and twins: 33:21 Clock desynchronization: 34:39 Relativity of simultaneity: 36:59 Events in spacetime: 40:41 Evidence of four-dimensional spacetime: 41:40 Interchangeability of time and space: 43:15 Messages from the future: 45:02 The future has already happened: 47:17 The Andromeda paradox: 48:44 Understanding the Andromeda paradox: 51:25 Conclusions: 53:34 Implications for reality: 54:25 Four-dimensionalism: 55:09 Is change an illusion: 57:04 Why is the future unknowable: 59:20 Time's arrow: 01:00:08 Implications for self: 01:00:08 Do we have freewill: 01:01:52 Religion and special relativity: 01:03:06 Relativity of viewpoints: 01:03:17 Existence of all times and events: 01:03:43 Eternal life: 01:04:50 Caesar still lives: 01:05:15 A tenacious illusion: 01:08:40 Other formats: Podcast: https://podcast.alwaysasking.com/ Article: https://alwaysasking.com/what-is-time/ eBook: https://alwaysasking.com/member-content/ |
| Category | Science & Technology |
| Tags | time | relativity | special relativity | Einstein | physics | time dilation | length contraction | eternal life | 4th dimension | illusions | miracle year | twin paradox | Andromeda paradox | relativity of simultaneity | reality | atomic clock | block time | clock desynchronization | eternal return | eternalism | general relativity | possibilism | presentism | spacetime | space time | absolute time | speed of light | GPS | particle accelerator | antimatter | fourth dimension | freewill | determinism | arrow of time |
