Tha Ancient Astronmy of India Science & Technology

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Volume 2011, Issue No.1, Dt. 2nd January,2011, Time:10h19mAM
On Vedic Knowledge of Astronomy
(A Chapter from Ph. D Thesis, 2007 Magadha University, Bodhgayaa -824234, Bihar India. Regd. No.1823/06)
by
Er. Dr. Duvvuri Narasimha Sinha,F.I.E,Ph.D,M.B.A., AIII
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Er. Dr. Duvvuri Narasimha Sinha,F.I.E,Ph.D,M.B.A., AIII


Ttitle Page of the Ph.D thesis of Dr D N Sinha on Ancient Knowledge of India on Science and Technology



Fig 0 The Vedic Knowledge of Astronomy: Content so the Chapter on Astronomy and Astrophysics.


Fig 1 Astronomy in Ancient Literature


Fig 2 Total Solar Eclipse : Prominent INDIA ASTRONOMERS


Fig 3 The Yuga Concept

Fig 4 The reckoning of time over Billions of Years of Creations


Fig 5 Importnat Hindu Eras

Fig 6 prevalent Indian Era


Fig 7 The point of reckoning time : Vernal Equinox



Fig 8 RAINFALL AND PREDICTIONS
The Varahmihira units of rain fall are Pala, Adhaka(=50 palas i.e.1.6cm) and Drona(=6.4cm =4 times Adhaka) Circular Vessel of diameter equal to 20human fingers distance or one human arm and depth of width of eight fingers used for measure of rain fall. Formation of rain clouds Gharbha dharana takes 195 days before rain fall or birth i.e.Garbha prasava. Clouds in dark-half of Margashirasha deliver in the bright half of Ashada. Conceived in dark half of Pausha are delivered in bright half of Sravana. Conceived in the dark-half of Magha are delivered in the bright-half of Bhadrapada. Rain formation happens in Moon transit of Purvabhadhra commencing the first day of lunar month of Margashirasha. Four types of clouds are Abhatak: certain places, Sambarkar: in all parts of the country, Pushkar: less rain fall and Drona: Abundant rain fall. SapthaNadi or Dwinadi or Trinadi categories used for rain fall predictions.


Fig 9 Rotation of Earth: Precession of Axis

Fig 10 Indian 12 months and the Seasons 6 (rituas)

Fig 11 Unique Indian Concept of Thidi and Nakshtras

Fig 12 Bhaskara Siddahnat Siromani and Aryabhatiya

Fig 13 Periods of Revolutions of Planets

Fig 14 Was earth at any time Spherical? Glimpses of Aryabhatta
Fig 15 Earth's rotation and apparent motion of Stars!!

Fig 16 Simple Atronomical Instruments to study the Eclipses of Moon & Sun

Fig 17 Shukla Yantra

Fig 18 Gnomon shadow Corrections use of Trigonometry

Fig 19 Yashti Yantra

Fig 20 Shalaka Yantra a Survey Instrument

Fig 21 Chakra Yantras of various Indian Astronomers

Fig 22 Unifeid Theory of Planetary latitudes and fixation of their Centres.

Fig 23 Sapta Nadi Chakra Seed of Health mangament

Acknowledgment;
The author is greatful to Dr D V N Sarma, Dr E V Gangadharam and Prof Dr K Lakshmi Narayana for encouragment and fruitful dialogues during the trusciencetrutechnology monthly Research meetings and presentations