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The History and Mystery of Calendars 

HBCSE-TIFR
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Seminar by Prof. Palash Baran Pal (Saha Institute of Nuclear Physics, Calcutta).
In this talk the speaker discusses the main problems of calendrical astronomy, viz., that the units (day, month, year) are given to us and their ratios are not integers. It resulted in three main systems of
calendar: solar, lunar, lunisolar. Prof. Pal gives examples of each kind and trace the developments of different calendars, e.g., the Roman calendar, the Islamic calendar, the calendars of North and West India, and the Bengali calendar.

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14 июн 2017

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Комментарии : 8   
@NirmalSingh-ce2oo
@NirmalSingh-ce2oo 4 года назад
Beautifully and logically explained !!! wonder why there is so less views!!!Must see for everyone
@AtreyaGotram
@AtreyaGotram Год назад
Good presentation laced with humor for easy understanding. The learned speaker got the reason for Bengali New Year (along with Tamil, Malayali and others) falling in mid-April wrong. It has nothing to do with precession of (tropical) equinox nor was a mistake on part of Indian astronomers. The Tamil (and the Bengali) calendar follows sidereal year (he states this too) and in this system, the point of reference for New year taken is of Chitra star that is visible at this point. The Sun enters the Aries (Mesham) zodiac constellation. Currently, tropical Equinox is March 22 and sidereal equinox is April 14. I would recommend the speaker to read less of Lenin and more on Bhartiya books on Panchang and astronomy 😄
@kinjaldasbiswas3278
@kinjaldasbiswas3278 3 месяца назад
The point he makes is that the sidereal equinox is of little practical significance in determining seasons. It's the equinox relative to the sun that is of practical interest. I do not know the history of when this practical problem was realized by Indian astronomers, but the point remains that the calendar was not reformed because of conservative attitude stemming from an "everything is in the Vedas" mindset.
@sleeperwaking7892
@sleeperwaking7892 3 года назад
Finally I've found a lecture that makes sense.
@anandbhardwaj7523
@anandbhardwaj7523 3 года назад
Yes I have found what I was searching
@fuzz2978
@fuzz2978 3 года назад
Very good talk
@indianvaloggarpurnimam.8278
@indianvaloggarpurnimam.8278 4 года назад
Nice 👍🤝
@CRU5ADER373
@CRU5ADER373 3 года назад
Good presentation but CK Raju has taught this a lot better. Also fails to include the Indian geniu
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