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Showing posts from February, 2019

Supermoon : All about the phenomenon

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A supermoon happens when the full moon coincides with the moon's closest approach to Earth in its orbit. Supermoons make the moon appear a little brighter and closer than normal, although the difference is hard to spot with the naked eye. The first supermoon of 2019 was the Super Blood Wolf Moon on Jan. 20-21, and two more supermoons will follow on Feb. 19 and March 21. The moon's orbit around the Earth is not a perfect circle. It has an average distance of 238,000 miles (382,900 km) from Earth, but its apogee and perigee — the closest and farthest approaches from Earth — change every lunar month. A supermoon needs two key ingredients to occur. The moon needs to be at its closest approach, or perigee, to the Earth in its 27-day orbit. The moon also needs to be at the full phase, which happens every 29.5 days when the sun fully illuminates the moon. Supermoons only happen a few times a year (at most) because the moon's orbit changes orientation while ...

The Black Cat (BC) Analogy

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There is nothing more flabbergasting (click on the word to know more) than finding an appealing analogy between what you observe and what you feel. Some argue that it is our feeling that drives our inferences from these observations to concur with our feelings, however this strange connection between two unconnected things is utterly a pleasant finding. I shall divide this post into two sections, the observation and its corresponding analogy. Observation (निरीक्षा) I am blessed with the company of two cats, one is golden brown and another one is pure black. The golden brown cat however has a mate which is completely white in color.  In a dimly lit evening when I went to feed my cats, I was astonished to see the white cat hissing at nothing. If you are an avid cat fan, you will probably know that the cat is angry or not by looking at it, and believe me I could see the white cat getting mad at something. Cat face off  It took me sometime for my pupils to adj...

Pleasant Paradoxes : A compilation

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A paradox is a seemingly absurd or contradictory statement or proposition which when investigated may prove to be well founded or true. .This is a set of philosophical problems that contrary to the evidence of one's senses, the belief in infinity and change is mistaken, and in particular that progress is nothing but an illusion . Achilles and the tortoise In a race, the quickest runner can never overtake the slowest, since the pursuer must first reach the point whence the pursued started, so that the slower must always hold a lead. —  as recounted by Aristotle, Physics VI:9, 239b15 In this paradox of Achilles and the tortoise, Achilles is in a footrace with the tortoise. Achilles allows the tortoise a head start of 100 meters, for example. Supposing that each racer starts running at some constant speed (one very fast and one very slow), then after some finite time, Achilles will have run 100 meters, bringing him to the tortoise's starting point. Duri...