Aryabhata-I (476-550 AD) occupies an envious position in the Indian astronomy and mathematics. In view of his important contributions, some of these for the first time in the world, Aryabhata-I has been rightly regarded as the father of astronomy and mathematics in India. His major works include the ‘Aryabhatiya’ and the‘Arya-Siddhanta’, out of which, the ‘Aryabhatiya’ is more famous and is relevant even today. Aryabhatiya consists of 108 verses in addition to 13 introductory verses, which are divided into four pādas or chapters. India's first satellite ‘Aryabhata’ was named in his honour. Aryabhata-I is known in the world for his outstanding contributions, which include: (i) the value of Pi (= 3.1416) which was very close to its actual value; (ii) proposal that the earth rotates on its axis and orbits around the Sun; (iii) explanation of eclipses through shadows; (iv) calculation of the earth's circumference and sidereal year with high accuracy; (v) utilization of zero as a place-holder and development of an innovative alphabetical numeral system for large numbers; (vi) introduction of sine tables; and(vii) quadratic equations and algebraic solutions. Needless to say that Aryabhata-I was a visionary who thought much ahead of time, This book by me (as a proud Indian author) is a tribute to this worthy son of the soil. The book consists of 3 Sections and 7 Chapters.
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Prof. (Dr.) Jai Paul Dudeja
Born in June 1948, Prof. (Dr.) Jai Paul Dudeja holds a brilliant academic record. He did his Master’s degree in Physics from Birla Institute of Technology and Science (BITS), Pilani (India), and Ph.D. degree in Physics from the Indian Institute of Technology (IIT), Delhi. He has been in regular employment as a Scientist, Professor, Dean, Director, Principal and a Senior Academic Administrator in various educational institutions, universities, laboratories, public and private organizations. He superannuated as a Senior Scientist and Additional Director in May 2008, in the field of “Laser Science & Technology”, from the Defence Research and Development Organisation (DRDO), Government of India. After DRDO, he served for over 11 years, till his last posting as a Director, “Amity Institute of Laser Technology & Opto-electronics”, at Amity University Gurgaon, from where he retired in Nov 2019.
Till date, Dr. Dudeja has published/presented about 90 research papers in various national and international journals/conferences. Besides this, he has authored thirty-nine books on science, technology, spirituality, mysticism, consciousness, and various other subjects.
Dr. Dudeja has delivered many invited lectures on various subjects in the international conferences in India and other countries.
He has been recognized as the “World’s Who’s Who” in Science & Engineering.
