Indian calendar: scientific aspects

· C. K. Raju
4.1
20 reviews
eBook
292
Pages
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About this eBook

Today children learn their birthday only on the Christian calendar, because colonial education, being church education, teaches that calendar as its first lesson. That Gregorian calendar is inferior and unscientific, e.g. with haphazard months of 28, 29, 30, and 31 days, unrelated to any natural cycle. But children are NOT taught any alternative, on the “blinkered horse” strategy, to prevent a comparison, and force them to accept that inferior but propagandist calendar.

This book explains how the Indian calendar provides a superior and scientific alternative, on which children can learn their जन्मतिथि, and why तिथि ≠ day. Children will also learn how to determine the dates of Indian festivals such as Holi and Diwali, puzzling since moveable on the Christian calendar. And perhaps stand up and question why the dates of the two secular Indian festivals are defined only on the Christian calendar.

Indian astronomy, since ancient times, was scientific, and this book focuses on those scientific aspects, also explaining how science was missing in Graeco-Roman and Western tradition until the 16th c. Ever since the Vedanga Jyotish, the word jyotish meant scientific timekeeping, through astronomy, though the word jyotish is today confounded with phalit jyotish or astrology.

A season missing on the Gregorian calendar is the rainy season vitally important for Indian economy, culture, and for the entire reproductive cycle on the subcontinent.

Ratings and reviews

4.1
20 reviews
sriram lamsal
4 December 2024
I read the sample and found book to be authentic style first of its kind proving true unvarying indian thought of timekeeping with stars. Book 5 star !! Language of narration is easy flowing equally suited for high school student as well for scholars find research paper math snapshots intermittent throught text. Raju ji is contemporary Aryabhatta, Varahamihir, Brahmagupta, Bhaskar, Nilakantha.
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Atharva Shintre
4 December 2024
Amazing! Prof Raju helps us understand our ancient scientific tradition which is very much good for serving our practical purposes in contemporary times. Unlike Macaulay - who (falsely) peddled colonial education as superior, which we have accepted uncritically, which destroys our self-esteem - Prof Raju forces us to compare and critically analyse which science, colonized or decolonized, is better for us today (and for our tomorrow), helping us not only get back in touch with our scientific roots but also with our dream of a scientific utopia - to change the world for the better.
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Ashish Naredi
19 December 2024
This book is truly a landmark book for multiple reasons. I will give two here: 1. It blows to smithereens the entire false propaganda of 'western superiority' in science & maths that has been built over centuries! 2. It not only reclaims knowledge that is truly ours (Indian) but also establishes how our methods are much more efficient & easier to use. The west copied them but alas without proper understanding, thus unnecessarily complicating simple concepts! Take the definition of Angles, for instance. Take the Indian definition and suddenly the need for an angle, 'trignometry' & indeed calculus becomes very clear! The primitiveness of western math & science is brilliantly brought out with evidence which is there for all to see in the CALENDAR that is followed. You just need to read this book to find out & understand! This & other works of Prof Raju are bound to be hailed as the most remarkable pieces of research to be brought our in times - A true & real harbinger of Decolonisation!
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About the author

Professor C. K. Raju holds a BSc (Hons), degree in physics, an MSc in mathematics and a PhD from the Indian Statistical Institute. He has long been a Professor in departments of mathematics and computer science. He played a key role in the C-DAC team which built the first Indian supercomputer Param. He received the TGA gold-medal in Hungary in 2010 for pointing out and correcting a mistake made by Einstein.

He has authored two books on “time”: Time: Towards a Consistent Theory (Kluwer Academic, Dordrecht, 1994) and the Eleven Pictures of Time (Sage, 2003). In Cultural Foundations of Mathematics (Pearson Longman, 2007) he explained the theft of calculus from India and why Newton etc. failed to fully understand the stolen calculus, so that its current teaching is defective. His book on Rajju Ganita for school children explains what is wrong with the current teaching of geometry in schools, because of the desire to promote the myth of Euclid, which lacks evidence as pointed out in his book on Euclid and Jesus (Multiversity, Penang, 2012).

His books have been highly praised, and his several articles have also drawn high praise from both referees and readers. He has lectured on six continents and videos of over 100 talks are available.

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