Aryabhateeya was composed in 499 CE by Aryabhata in Kusumapura, which is identified with Pataliputra (essentially modern Patna). This text heralded the advent of siddhaantic astronomy in India, which gives a systematic mathematical treatment of astronomical problems. Aryabhateeya is very brief and has only 121 stanzas. It has four parts, one of which is devoted to mathematics. It is in this part that the computation of the sine function (jyaa in India) is discussed. The jyaa is far more convenient than the Greek chord for astronomical computations, and is essentially the modern ‘sin theta’.
Aryabhateeya states: “The globe of the Earth stands (supportless) at the centre of the circular frame of asterisms surrounded by the orbits (of the planets); it is made up of water, earth, fire and air and is spherical.” It is one of the earliest texts anywhere to discuss the rotation of the earth: “Just as a man in a boat moving forward sees the stationary objects as moving backward, just so are the stationary stars seen by people at Lanka (on the equator), as moving exactly towards the west.”
Denne historien er fra August 15, 2020-utgaven av The New Indian Express Chennai.
Start din 7-dagers gratis prøveperiode på Magzter GOLD for å få tilgang til tusenvis av utvalgte premiumhistorier og 9000+ magasiner og aviser.
Allerede abonnent ? Logg på
Denne historien er fra August 15, 2020-utgaven av The New Indian Express Chennai.
Start din 7-dagers gratis prøveperiode på Magzter GOLD for å få tilgang til tusenvis av utvalgte premiumhistorier og 9000+ magasiner og aviser.
Allerede abonnent? Logg på
Stories soaked in wisdom
The art of storytelling has played an important role in preserving India's cultural history. We take a look at one vertical, Harikatha, and how one can appreciate the content.
Live-action Moana wraps filming
PRODUCTION on Disney's live-action adaptation of Moana (2016) has been wrapped.
A Pallava era Siva temple with rare images
INAR, originally called Thirukannar and Nethrapuram, is a small village near Madhurantakam which has an ancient temple for Siva worshipped as Nethrapurishwarar.
Idris Elba to star in Masters of the Universe
Idris Elba is in talks to join the cast of the upcoming live-action Masters of the Universe film.
Chess masters shine at tourney
INTERNATIONAL Master AR Ilamparthi scored 7.5 points at the end of the eighth and final round and won the Singh's Gambit International Fide Rated Chess Tournament-2024 title here at Guru Nanak College, Velachery.
Bringing pages to stage
The library corner at the American Centre, US Consulate General Chennai, was abuzz with energy, a kaleidoscope of colours as women, draped in saris, filled the room.
Jest being jolly
The sound of laughter reverberated through Sir Mutha Venkatasubba Rao Concert Hall, Chetpet, over the weekend, for the International Clown Festival was in town.
IN REMEMBRANCE OF A GREAT MIND
I have been associated with Dr. Badri since 1977. He was my mentor,\" said TS Surendran, chairman of Sankara Nethralaya and director of pediatric ophthalmology.
Set for board exam: Gukesh plotting to lift India to pinnacle of chess world
Viswanathan Anand, the owner of five world titles, tried for one final time. But the young world champion, Magnus Carlsen, kept the door shut.
A tribute to vision and verses
“PPO amma TV on pannuvanga? (Amma, When will they turn on the TV (read: movie screen)?),\" asked a little girl dressed in pink.