- Lalla
Lalla (720 - 790) was an
India nmathematician ,astronomer , andastrologer who belonged to a family of astronomers. His most famous work was entitled "Shishyadhividdhidatantra ", or "Treatise Which Expands the Intellect of Students." He did not believe in the rotation of the Earth. He is also known for having published the earliest known description of a "perpetuum mobile" in "Shishyadhividdhidatantra".In his work, Lalla drew on his predecessors
Aryabhata ,Brahmagupta , andBhaskara I . In turn, he influenced later generations of astronomers, includingSripati ,Vateswara , andBhaskara II .Publications
* "Jyotisaratnakosa". Most popular astronomy book in India for 300 years.
* "Shishyadhividdhidatantra"
* "Ratnakosa" - on astrology
* Another work of Lalla was lostEnglish Translations:
* Bina Chatterjee, "Sisyadhivrddhidatantra of Lalla" (critical edition with Commentary of Mallikarjuna Suri), 1969-71. Published by INSA, 1981.
* Bina Chatterjee, "Sisyadhivrddhidatantra of Lalla" (English translation with mathematical notes.) 1969-71. Published by INSA, 1981.INSEA: Indian National Science Academy
References
*
* K. V. Sarma. "Lalla." "Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures", ed. Helaine Selin, p. 508. Dordrecht: Kluwer Academic Publishers, 1997.
Wikimedia Foundation. 2010.