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Global Climate Change

Climate change is the change in average patterns of natural events or phenomena such as temperature and rainfall over time in a region or around the world. Changes may occur naturally as well as occur due to human activities posing threats to nature. How Climate Change Occur / Causes of Climate Change There has been a drastic increase in climate change since the industrial revolution around the globe. Greenhouse gases are the primary cause behind these climatic changes. These gases trap and hold light energy reaching the earth’s surface from the sun, and radiate it in the form of infrared heat. Eventually, this process causes an increase in the average temperature of the atmosphere of our globe. Carbon dioxide (CO2), methane (CH4), nitrogen oxide (N2O), and chlorofluorocarbons (CFCs) are major greenhouse gas contributors.  Carbon DiOxide (CO 2 ) .  CO2 is generated due to natural processes (i.e. volcanic eruptions) as well as through human activities (deforestation and burning...
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Gravity - A Brief History in Science

    In 1687, Isaac Newton changed the way we humans see Cosmos by connecting a Force we experience at earth with the force that controls the movement of heavy bodies (That of course is Gravity) and he expressed it analytically using remarkable equations we still use today

F = G(m1m2)/R2 (The law of universal Gravitation). 

    This equation explains the movement of planets and it remains very accurate even today under most circumstances. But it had a few problems, 1 of which is the mysterious idea of the "Action-at-a-Distance" that even Newton had troubled accepting. This was the idea that a massive object could exert a force instantaneously to another massive object at a distance without ever touching it.

    Later in 1859, Newton's laws could not explain the "Rate of Precession of Mercury". The way its elliptical orbit rotates around the Sun and is not fixed. Newtom explains gravity as innate property of objects (A constant instantaneous force that could act over long distances).


    Two and Fifty years later, in 1916, Einstein changed this paradigm with his publication of the General Theory of Relativity. It solved the riddle of Mercury's precession and explained that the gravity is not the mysterious force acting at a distance in the background of space-time but it was a result of the bending of background itself (The curvature of Space-time). It was a new paradigm that could explain more things. Today, a hundred years after Einstein's publication we find some loop holes in Einstein's theory as well. Such as it's inability to explain the Singularity inside Black holes and thr Bigbang. One of the biggest pursuits in Physics is the attempt to find a better theory "A Quantum Theory of Gravity". In order to understand Quantum Gravity, you have to first understand General relativity. However, the mathematics of General relativity is so difficult that even a Genius like Einstein could not easily derive it and there's still papers being written today that give specific solutions to these equations.




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