Pari Talks

How Dark Matter Came to Existence. P.K.Ghatak. MD No.46. Dark matter existed ever since the moment of Creation. The Scientific world did learn about this until Einstein published his Theory of General Relativity in 1915 and in 1916 a more expanded version of it  At that time such questions were limited to Theology and Religion.  In India, the Sanatan Dharma proclaimed that the universe always existed and will always exist in the future, however the universe goes through cataclysmic periods, the universe reemerges as new.  The Abrahamic religion of the West says, God created this universe 4000 years ago from nothing.  Einstein's Theory of General Relativity states that the creation took place with a huge explosion. After the explosion Time, Space, Matter and Energy came into existence. It further states, the universe is static due to cosmological constant. The Gravity is the result of mass and energy which forms a four-dimensional Curvature of Spacetime.  In 1927...

Does Humility have a Place in the Present Society. P.K.Ghatak, MD No. 45. Everyone should have an answer to this question because, it is such an important and relevant question for humanity, especially now that a Munachimso attitude is sweeping the world. Humility, according to Webster Thesaurus is, - Absence of any feeling of being better than others. It really describes what humility is not. So let us examine antonyms of humility. The same Thesaurus lists - arrogance, conceit, egoism, pompousness, superciliousness as antonyms of humility. Do you see any recognizable sings of arrogance, conceit, egoism, pompousness and superciliousness in the Head of State of the most powerful country of the world?  If that is a norm then why not all of us should be like him. If you have taken classes for public speaking or the company you work for sends you for a preparative course for a leadership position in the company, then you know. They teach you assertiveness, and aggressive ways of speak...

  Ferrell's Law. P.K.Ghatak, MD No.44. Modern warfare, to a large extent, depends on the precise computation of the target because the missiles are most effective when it hits the intended target and a miss means waste of several million dollars gone to manufacturing the missile. In the earlier times when goods moved by boats utilizing the “trade wind” according to Ferrell's law was essential for safe navigation. It kind of lost its luster with the introduction of steam ships and transport planes. Nowadays, only the weatherman knows and uses Ferrell’s law, and the also the engineers engaged in planetary missions and electronic warfare. Ferrell's law is modifications of Coriolis effect for much larger masses of air and sea currents. Gustave Coriolis was a French mathematician and mechanical engineer in the eighteenth century, he solved the commonly observed phenomenon of objects, taking a curved path in reference to Earth rotatory motion. Mr. William Ferrell was an American ...

  The Phenomena of the blue color of the sky and ocean are different. P. K. Ghatak, MD No. 43. We are endowed with a pair of retinas which can receive three fundamental colors: - Red, Blue and Green. However, we can appreciate any color of the Newton spectrum of sunlight as well as any shades of the fundamental colors and also new colors generated by mixing of colors just like the salesperson at the paint shop matches the color of house paint the color strip you select. A teacher explains that the red color of a rose is a reflection of red and the rest of the other colors of the spectrum are absorbed by the petals of the rose. When it comes to explaining the color of the sky and ocean, he brings in other phenomena. Color of the Sky: The sky is blue during the day except at sunrise and sunset. Sunlight encounters nitrogen, oxygen and water molecules after entering the Earth’s atmosphere. The colors having long wavelengths, larger than the molecules, are scattered less and do not re...

   Why common Salt Tastes Bitter. P.K.Ghatak, MD No.42. Every dining table has a permanent place for a saltshaker. When sprinkled on food, each white crystalline salt grains dazzle food and add favor to food. If the same dish cooked without salt and no saltshakers are available no one would take a mouthful of food because it turns tasteless. The difference is all due to Salt which is Sodium Chloride. The common salt contains a small amount of additional chemicals to prevent caking of and also supply daily iodine requirement. The taste of Sodium chloride is salty but that is not all, salt may appear bitter, sweet or even sour and metallic. In addition, salt enhances other primary tastes and eating experience. Sodium chloride dissolves in saliva and sodium ion enters the salt taste buds through Na+ channels and trigger an electrical impulse which is carries first to thalamus and next relayed to taste center located in the Anterior Insular Cortex and posterior part ...

 Raman. P.K.Ghatak, MD No.41. Chandrasekhar Venkata Raman was an Indian Science prodigy. He graduated in science at age 16, obtained a master's degree at age 19, published his scientific paper at age 18. and obtain Nobel prize in Physics at age 42, the same age as of Einstein when he was awarded his Nobel prize. He was born in Madras in 1888 when India was under the British Rule. Raman's life shows the how the British in colonial India suppressed Indians to excel in science and technology at the same time the British in England always ready to help Indian whenever they detected a rare talent. Raman was given an opportunity to go the England for research but denied permission on health grounds by a British surgeon on the pretext that he would die of tuberculosis if he went to a cold country. During the student days he was researching under his British professor. He wrote his findings and gave him to review with a hope that he would appreciate the work and even suggest p...