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Showing posts with the label Doppler effect

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TIME Episode - 27

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  Zeeshan and Advik returned back to me and enquired about my health.  They hesitated to see my parents.  They both begged pardon from my parents and Aalya.  My parents interrupted them kindly, "Please don't feel sorry.  You have apologized multiple times.  Actually, we must thank you for informing us and admitting my son to the hospital.  Whatever happened is happened, nothing is in our hands.  Today, my son is alive because of you both.  We are very thankful for you and your father". "My son told me everything about you and your brother.  He always updates us about his research.  Even though he was in a critical situation, he left a message for us.  Only my family members can understand the code language.  My father used to teach him.  It is easy and precise.  I can understand the entire situation very well."  Zeeshan praised my parents with an emotional tone, "So kind of you.  Thank you so much for n...

The Universe is full of stars, then why the space is black?

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          Why the space is black?   There is no one, to pay the electric bill or there may not be any source to give light in space.  This may be a funny answer.  But the actual reason it isn't.         To know the answer, we should know about Doppler effect and Red shift.      To know the Doppler effect in simple way, just consider, you standing in a road side and an ambulance crossing you.  So many of them may get experience in that, the siren sound is higher when the ambulance moving towards us and the sound get lower and lower, when it is moving away from us .        The reason behind is the wavelength of the sound.  If the wavelength is longer the sound get lower and if the wavelength is shorter the sound get higher.  What is wavelength?  The distance between two waves (If you throw a stone in a water, you can observe the waves).     ...