1673: "There Is No Universal Now"
About this episode
This episode discusses how different observers perceive time and simultaneity in the universe.
Interesting Things with JC #1673: "There Is No Universal Now" – A star 100 light-years away is doing something at this moment, but observers moving at different velocities can assign different times to the same distant event. What appears simultaneous to one observer does not appear simultaneous to another, and the universe continues without a single present moment everyone shares.
People in this episode
Host: JC
Topics covered
- time
- relativity
- observers
- universe
- simultaneity
Keywords
- universal now
- light-years
- velocity
- distant event
- present moment
More episodes of Interesting Things with JC
- 1681: "The Day After Disclosure: Humanity Already Has a Plan"
- 1680: "The Overview Effect: How Does a Cosmic Perspective Change Us?"
- 1679: "The Fermi Paradox: Why Haven't We Found Anyone?"
- 1678: "The Formal Study of ESP"
- 1677: "The Benben Stone"
- 1676: "Thomas Sowell"
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