বর্তমান দেখা অসম্ভব কেন? Do we live in the past AND how can Telescope is a time machine Ep 46

ভুল সংশোধন:
7:19 মিনিটে অবতল লেন্স বলেছি কিন্তু বিষয়টি হবে উত্তল লেন্স।

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We feel that we live in the present. When we open our eyes, we perceive the outside world as it is right now. But we are actually living slightly in the past.

It takes time for information from our eyes to reach our brain, where it is processed, analysed and ultimately integrated into consciousness. Due to this delay, the information available to our conscious experience is always outdated.
So why don’t we notice these delays, and how does the brain allow us to feel like we are experiencing the world in real time?
You’ve got a good handle on the observable universe. This is the universe that we see, where everything away from our own planet has some kind of time lag to it. We see our Sun as it was eight minutes ago, in the past. We see Jupiter as it was, about 30 minutes ago in the past. We see the stars as they were, a few years to a few thousand years ago. We see the Andromeda galaxy as it was 2.5 million years ago. As we look farther out into the universe, and strain our technology to the limits, we push further and further back into time, capturing light which has traveled longer and longer stretches of time to reach us.

#BigganPiC #Obserable_Universe #Astronomy #Dead_Star #GN_Z11 #Physics

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