P.C. Mahalanobis

Image
             P.C. Mahalanobis   A well-known Indian statistician and scientist, Mahalanobis is greatly popular for introducing new methods of sampling. His most significant contribution in the field of statistics was the 'Mahalanobis Distance'. Besides, he had also made pioneering studies in the field of anthropometry and had founded the Indian Statistical Institute.  Originally, the family of Mahalanobis belonged to Bikrampur, Bangladesh. As a child. Mahalanobis grew up in an environment surrounded by socially active refoemers and intellectuals. He had his initial education from Brahmo Boys School Calcutta. Further, he enrolled himself into Presidency College and got a BSc degree with specialisation in physics. In 1913, Mahalanobis left for England for ther stodies and came in contact with S. Ramanujan, the famous mathematician from India. After completion of his studies. he returned
Post a Comment

Bhaskara II

                   Bhaskara II

Bhaskara II, also known as Bhaskaracharva, was born in 1114 CE near Vijjaydavida or present-day Bijapur in the state of Karnataka. Born to a family of scholars, he learnt mathematics from his astrologer father Mahesvara. A leading mathematician of twelth century, he wrote his first work on the systematic use of the decimal number system. He also headed the astronomical observatory at Ujjain, a leading mathematical centre of ancient India. 



His main work Siddhanta Shiromani, which has four parts, namely, Lilavati, Bijaganita, Grahaganita and Goladhaya deals with arithmetic, algebra, mathematics of the planets and spheres, respectively Bhaskara is particularly known for the discovery of the principles of differential calculus and its application to astronomical problems and computations. While Newton and Leibniz have been credited with differential and integral calculus, there is strong evidence to suggest that Bhaskara was a pioneer in some of the principles of differential calculus. He was perhaps the first to conceive the theorems of differential coefficient and differential calculus. 


He conceived the modern mathematical finding that when a finite number is divided by zero, the result is infinity. He also accurately defined many astronomical quantities using models developed by seventh-century scholar Brahmagupta.For example, he calculated that the time that is required for the Earth to orbit the Sun is 365.2588 days. The modern accepted measurement is 365.2563 days, a difference of just 3.5 minutes. Bhaskara wrote Karanakuthuhala, a book on astronomical calculations, which is still referred to while making precise calendars. Bhaskara II was also a noted astrologer, and it is said that he named his first work after his daughter Lilavati. 
Location: Vijayapura, Karnataka, India

Comments

Post a Comment

Popular posts from this blog

Aryabhatta

Image
                    Aryabhatta Aryabhatta the earliest known mathematician and astronomer of India. The birth place of Aryabhatta, who lived between circa 476-550 CE, is still a mystery. While many believe that he was born in Pataliputra in Magadha, present-day Patna in the state of Bihar, others are of the view that he was born in Kerala and lived  Magadha at the time of the Gupta rulers. His works include the Aryabhamiya (499 CE, when he was 23) and the Arya Siddhanta.  His most famous work, Aryabhatiya is a detailed text on mathematics and astronomy. The mathematical part of the Aryabhatiya covers arithmetic, algebra and trigonometry. It also contains continued fractions, quadratic equations, sums of power series and a table of sines. Aryabhatta is believed to have written at least three texts on astronomy and wrote some free stanzas as well. Aryabhatta was a genius and all his
Read more

Indian Scientist

Image
              Sir Ronald Ross Ronald Ross was born in India in 1857 in Almora district located in present day Uttrakhand. His father was a General in the British army in India. Ross lived in India until was 8. Then he was sent to a boarding school in England. Studied medicine from St. Bartholomew Hospital in London. When Rose was small boy ,saw many people in India fall ill with malaria. At least a million people would die of Malaria due to lack of proper meditation .When Rose fathers fell seriously ill with Malaria, but fortunately recovered this deadly disease left an impression on age mind. When rows returned to India is part of the British Indian Medical Services, he was sent to Madras where a last part of his work was treating Malaria patient in the army. Ronald Ross in 1897 the long suspected link between mosquito and malaria. Confirmed the hypothesis.  Till date time, it was believed that Malaria is caused by breathing in bed and living in hot humid and Masi environment. Ross st
Read more

Jagadish Chandra Bose

Image
        Jagadish Chandra Bose Jagadish Chandra Bose was born on 30 November 1858 in Mymensingh (now in Bangladesh). His father Bhagaban Chandra Bose was a deputy magistrate. Bose received early education in a vernacular village school. He was sent to Kolkata at the age of 11 to learn English and was educated at St. Xavier's School and College. He was a brilliant student. He passed his Bachelors in physics in 1879.  In 1880, Bose went to England. He studied medicine at London University for a year but gave it up because of his ill health. Within a year, he moved to Cambridge to take up a scholarship to study Natural Science at Christ's College, Cambridge. In 1885, he returned from abroad with a BSc degree and Natural Science Tripos (a special course of study at Cambridge). In 1894, Jagadish Chandra Bose decided to devote himself to pure research. He converted a small enclosure adjoining a bathroom in the P
Read more