World's Famous Scientist
# Aryabhata
Born : 476 CE
Died : 550 CE
Place Of Birth : Ashmaka or Kusumapura, India
"Exact place of birth still unknown"
Life Span : 74 Years
Nationality : Indian
Aryabhata was the first great Indian mathematician and astronomer . His contribution to mathematics, science and astronomy is immense. His first name, “Arya,” is a term basically used for respect, such as "Sri”, whereas his last name “Bhata” is a typical north Indian name. Aryabhata provides no exact information about his birth place, only information comes from Bhaskara I, who describes Aryabhata as asmakiya, "one belonging to the asmaka country." His major written works include “Aryabhatia” (a compendium of mathematics and astronomy) which has survived to modern times, “Aryasiddhanta” (astronomical computations) which is a lost work , and Arabic text “Alntf” or “Alnanf” (Sanskrit name of this work is not known) claims to be a translation of Aryabhata.
Aryabhata wrote his famed “Aryabhatia” when he was only 24. He invented the concept of zero and was the first mathematician to calculate an accurate value for ‘pi’ up to the fourth decimal point. He discovered formula for calculating areas of triangles and circles and calculated the circumference of the earth as 62,832 miles which is an excellent approximation and was very close to actual value (which was not known at that time). He was the first astronomer to devise a continuous counting of solar days and discovered that the planets shine due to the reflection of sunlight, and that the eclipses occur due to the shadows of moon and earth. His observations discount the “flat earth” concept, and lay the foundation for the belief that earth and other planets orbit the sun. As a tribute to his contribution toward science, mathematics and astronomy India's first satellite Aryabhata, was named after him. The lunar crater Aryabhata is also named in his honor.
IMPORTANT WRITINGS
Aryabhatiya : The text consists of the 108 verses and 13 introductory verses, and is divided into four chapters:

Gitikapada: (13 verses)

Ganitapada (33 verses)

Kalakriyapada (25 verses)
 Golapada (50 verses)
IMPORTANT INVENTIONS
Mathematics :
 Invention of zero
 Approximation of π
 Mensuration and Trigonometry
 Indeterminate equations
 Algebra
Astronomy :
 Motions of the solar system
 Eclipses
 Heliocentrism
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