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Cosmic History Recorder | Can we see the past? | A thought experiment
What if every moment in Earth's history was recorded in light, permanently traveling through space? Could an advanced telescope capture photons from centuries ago, allowing us to see events that unfolded in Earth's past? In this video, we explore the mind-bending concept of a "Cosmic History Recorder"—the idea that light carries a 'permanent record' of the past.
You won't believe what's in your Idli!
Have you ever thought what the idli is made up of?