Indian Calendar: Scientific Aspects
About the bookDid you teach your kids their जन्मतिथि? Or how it differ from their birthday (because तिथि differs from day)? Why are even our two secular festivals defined, like birthdays, only on that Christian calendar? Why do schools dodge a comparison with a scientifically better alternative, such as the Indian calendar?
What are Nakshatras and Rashis? Do they decide human destiny? Or are they just stars used to measure angles in the sky? And exactly how does one measure angles in space or even angles of latitude and longitude on Earth? Why does Tuesday follow Monday which follows Sunday?
But did ancient India at all have science or the experimental method? How did ancient Indians know the earth is round? That it stands supportless in space but does not fall down? How did they measure its size? And after how many millennia did the West rise above superstitions to catch up? What is the 2-scale principle for harmonic scales used to measure the Earth’s size? How did the Indian calendar successfully identify the rainy season missing on the Gregorian calendar? What is the Indian-origin planetary model today called the Tychonic model? Why is the heliocentric model against Newtonian physics? Why is the correct barycentric model needed to explain observed tides? Why do the moon’s phases affect tides? Are Rahu and Ketu superstitions or essential to predict eclipses?
Learn all this and more in this book which is the first to teach the Indian traditional calendar as science, not astrology.
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Buy paperback (currently in India only).
ISBN: 978-81-909161-3-4
224 pages
(India) Rs 850/- + shipping Rs 100/-
Praise for C. K. Raju’s earlier books
“Both path-breaking and definitive”—
Martin Bernal
“Raju remains one of the most important contemporary thinkers in the world...brilliant, insightful, ...magnificent work”—
Molefi Asante
“among the best treatments of the history and philosophy of mathematics”—
Ubiratan D’Ambrosio
“highly learned”— Asghar Ali Engineer
“masterly command of primary sources and a delightful sense of wit and humour”—
Kapila Vatsyayana
“magnificent...truly revolutionary”—
Arun Ghosh
“Raju is one of the deepest thinkers of modern times” —
Asad Zaman
About the Author
Professor C. K. Raju holds a BSc (Hons) in physics, an MSc in mathematics, from Mumbai, 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. Later, he was Professor and headed India’s then-largest computer-science department.
He has many books and articles and both books and articles have been highly praised by both referees and readers. He has lectured on six continents, has been widely reported in the press, and has written popular-level articles for newspapers and magazines. Videos of over 100 of his talks, including talks at prominent institutions, such as MIT, are available.
Buy the book
Buy e-book on Google Books
(From 29 Nov 24)India: Rs 850/-
Elsewhere: US$ 20/-
Buy paperback (currently in India only).
Or watch CKR's calendar videos for free
Also see this video of his keynote against the UGC recommendation to teach astrology, not the science of the calendar.
See more of CKR's books
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