StarTalk Radio
Cosmic Queries: Time-Keeping
Dec 31, 2024
Dive into the fascinating concept of time! Explore how timekeeping has evolved from sundials to atomic clocks, and indulge in playful discussions about whether time even exists. Delve into the philosophy behind Einstein's theories, unravel cosmic mysteries, and laugh at the absurdity of Superman's time-altering antics. Discover how our perception of time shapes cultural norms and whether the universe itself acts as a time machine. It's a delightful mix of humor, science, and audience curiosity!
34:58
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Quick takeaways
- Time is not infinite, having originated with the Big Bang, and is intrinsically linked to the universe's expansion and our perception of motion.
- Timekeeping varies across different locations and contexts, as seen in space missions, highlighting the complexity and adaptability required for measuring time beyond Earth.
Deep dives
The Nature of Time
Time is described as having a beginning with the Big Bang, leading to the understanding that it is not infinite in both directions. The concept of 'semi-infinite' time is introduced, indicating that time extends infinitely into the future but has a definitive starting point. This suggests that although we may think of time as constant, its existence is intricately linked to the universe's expansion and our perception of motion. Therefore, time can be seen as a construct that helps us navigate and understand changes within the universe.
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