Astrophysics

Special Relativity | Lecture 18 | Maxwell Equations and Special Relativity

Leave a Comment / Astrophysics, Courses, GTR, Physics, Relativity, Video Lectures / By prakrsinha

Special Relativity | Lecture 18 | Maxwell Equations and Special Relativity #SpecialRelativity #MaxwellEquations In this video lecture Maxwell equations are discussed. How we can get electromagnetic wave equations from maxwell equations. The video starts with time dilation and the requirement of relativity to satisfy maxwell equations. we will write Maxwell equations in both integal and …

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Top Physics Research Institutes of India

6 Comments / Articles, Astronomy, Astrophysics, Exams, GTR, IIT JAM, Learning, News, Physics, Popular Science, Research Papers / By Rahul Aggrawal

Rewritten and Edited by: Prashant Kumar Sinha ARIES | Aryabhatta Research Institute of Observational Sciences, Nainital: Astronomy and Astrophysics, and Atmospheric Physics. Bose Institute | Bose Institute, Kolkata: Atmospheric sciences, Biophysics, Complex systems and networks, Condensed matter physics and materials science, High energy physics and astroparticle physics, Quantum physics and quantum information, Nuclear, and radiation physics HBNI …

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What is big bang?

1 Comment / Articles, Astronomy, Astrophysics, GTR, Philosophy, Physics, Popular Science, Uncategorized / By Rahul Aggrawal

What is the big bang? According to the books, up to class 12th, it is well said that big bang was a big explosion which happened millions of year ago and in this big bang whole thing just change to dust, gases & free ions and molecules. And it is also said that this big …

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Life-cycle of stars

Leave a Comment / Articles, Astronomy, Astrophysics, Cosmology, GTR, Learning, Philosophy, Physics, Relativity, Science / By Rahul Aggrawal

Life-cycle of stars The most remarkable discovery in all of astronomy is that the stars are made of atoms of the same kind as those on the earth. Richard P. Feynman (1918-1988) We have all wondered about the mysterious twinkling stars in the night sky at some point in our life. Although, this curiosity about …

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पृथ्वी क्यों घूमती है?

1 Comment / Articles, Astronomy, Astrophysics, Learning, Philosophy, Physics, Popular Science / By Rahul Aggrawal

पृथ्वी क्यों घूमती है? पृथ्वी क्यों घूमती है?यहां तक कि न केवल पृथ्वी बल्कि ब्रह्मांड में हर वस्तु घूमती है। लेकिन इस ब्रह्मांड में हर दिव्य वस्तु क्यों घूमती है? वास्तव में यह कोणीय गति के संरक्षण के लिए है, लगभग पांच सौ करोड़ साल पहले, हमारे सौर मंडल की शुरूआत धूल और गैस के …

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Black Hole Kya Hai

Leave a Comment / Articles, Astronomy, Astrophysics, GTR, Physics, Science Article / By Rahul Aggrawal

The idea of a Gravity (Gurutvakarshan) and Black Hole is very fascinating among the students and common people also. Black holes are strange and fascinating star-like objects found in space. Different kinds of myth associated with Black Hole. Some people think that Black holes are the giant dead star which can attract each and every …

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THE KUIPER BELT

2 Comments / Articles, Astronomy, Astrophysics, Physics / By prakrsinha

THE KUIPER BELT The Kuiper Belt: The issues surrounding the discovery of astrophysical objects can be complex. Sometimes these objects get discovered by chance and on other occasions, their existence is inferred or predicted by astronomers before their eventual discovery. A prediction was made in the year 1943 by an Irish astronomer by the name Kenneth …

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Hundred years of cosmology

1 Comment / Articles, Astronomy, Astrophysics, Cosmology, Physics / By prakrsinha

Over the past four centuries, we have witnessed a huge and rapid growth in our understanding of the Universe. It started with the ideas on Gravitation and Celestial Mechanics in the 17th century followed by explorations of the wave nature of light in the 18th century! Later, in the 19th century, we achieved several breakthroughs …

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New address of Earth

Leave a Comment / Articles, Astronomy, Astrophysics, Physics / By prakrsinha

It seems like a completely new definition of a supercluster. Previously Milky Way was placed in the Virgo Supercluster. Tully and colleagues said that it is the appendage of the much larger Laniakea, which is 160 million parsecs across and contains the mass of 100 million billion Suns. In ancient times, it was believed that …

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Wormholes

Leave a Comment / Articles, Astronomy, Astrophysics, GTR, Physics / By prakrsinha

Our universe is mysterious it is very big in size and it is expanding and spreading out. After the sun our (earth) closest star is Proxima Century (4.22 light year away). It means if any fastest moving spacecraft attempt to reach Proxima Century, it would take around 80,000 year time. We want to explore the …

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