Sunday, June 23, 2013

What are mahavira’s contributions to mathematics?


Mahavira was an Indian mathematician who lived in 9th century. He worked in Mysore in southern India. Where he was a member of a school of mathematics. Mahavira made significant contributions to the development of algebra.
          The only known book by mahavira is ‘Ganita Sara Samgraha,’ dated 850 AD. It consisted of nine chapters, and included all the mathematical knowledge of 9th century India.
          There where many indian mathematicians before the time of mahavira but perhaps, surprisingly, their work on mathematics is always contained in texts which discuss other topics such as astronomy.
          The ganita sara samgraha by mahavira is the earliest Indian text we possess, which is devoted entirely to mathematics. Mahavira also stressed the importance of mathematics in all kinds of disciplines, including cooking.

Why is brahmadeva considered one of the immortals of mathematics?


Brahmadeva was an Indian mathematician who wrote a commentary on the work of Aryabhata. He lived between 1060 and 1130 AD in the Mathura district of Uttar Pradesh.
            Brahmadeva’s commentary is in nine chapters, and it follows the contents of  the original work of aryabhata, including the longitudes of the planets, problems relating to the daily rotation of the heavens, eclipses of the sun and moon, risings and settings, the lunar crescent, and conjunctions of the planets.
            Brahmadeva’s commentary, dealing partly with trigonometry and its applications to astronomy, was particularly popular in madras, Mysore, and Maharashtra.
            Brahmadeva died at the age of 70, but his reputation as a scientist, mathematician, astronomer, and academician lives on.

TERMS FOR NUMBERS
Bhaskaracharya has given the terms for numbers in multiples of ten. They are eka(1), dasha(10), shata(100), sahasra(1000), ayuta(10,000),  laksha(100,000), prayuta(1,000,000=1 milion) and so on.

 Bhaskaracharya considered a genius

Bhaskaracharya was a genius in mathematics, especially in algebra and geometry. He was born in sahyadri, and headed the astronomical observatory in Ujjain.
            Bhaskaracharaya also known as Bhaskara II(AD 1114-1183), wrote six books on arithematic, algebra, trigonometry, calculus, geometry, and astronomy.  He suggested simple methods to calculate the square, square roots,cube, and cube roots of big numbers.
            The Pythagoras theorem was proved by him in only two lines. Bhaskaracharya wrote about the gravitational force that helps to keep the planets, the sun, and the moon in their respective orbits much before the rest of the world even though about such an explanation. His work on calculus predates newton and Leibniz by over half a millennium. He is particularly known for the discovery of the principles of differential calculus, and its application to astronomical problems and computations. His renowned works are ‘Lilavati’ and ‘Bijaganita’.



Wednesday, June 19, 2013

Why is sridhara considered to be a great mathematician?


Sridhara
Sridhara, was an Indian mathematician who lived around the 10th century (AD 870-930). There  are two theories concerning his birthplace. Some historians believe that sridhara was born in southern india. He is famous for his writings on the practical applications of algebra, and he was one of the first to give a formula for solving quadratic equations.
          Sridhara is known as the author of two mathematical treatises, namely the trisatika, sometimes called the patiganitasara, and the patiganita. However, at least three other works have been attributed to him too. The patiganita covers the mathematical operations of addition, subtraction, multiplication, division, finding squares, cubes and their roots, fractions, proportions, and some geometrical principles, but the last section is lost. The Trisatika is a brief summary of the patiganita.

Tuesday, June 18, 2013

Why is patanjali respected to this day?

Statue of Patanjali
Statue of Patanjali


Patanjali, or Acharya Patanjali as he has been known through the ages, was one of the great yogies of all time. He lived in the 2nd century BC, and is credited with the first attempt to bring together all the knowledge contained in the ancient indian science of yoga. He prescribed the control of prana or life breath as the means to conrol the body, mind, and soul. Acharya Patanjali’s 84 yogic postures effectively enhance the efficiency of the respiratory, circulatory, nervous, digestive, and endocrine systems, and many other organs of the body.
            The yoga system of patanjali is known as the Eightfold Path, which leads to the final goal of God-realization. Acharya Patanjali will forever be rembered and revered as a pioneer in the science of self-discipline, happiness, and self-realization.

Wednesday, June 12, 2013

Why is Brahmagupta considered a great mathematician?

Brahmagupta was a great 7th century(AD 597-668) Indian mathematician and astronomer hailing from the state of Rajastan. Brahmagupta become the head of the astonomical observatory at Ujjain.
Brahmagupta
            In his work on arithematic, Brahmagupta explained how to find the cube and cube-root of an integer, and gave rules facilitating the computation of squares and square roots. He also gave rules for dealing with five types of combinations of fractions.
            Brahmagupta’s genius,  however, came in his treatment of the concept of zero. Although the number zero is often also attributed to the 7th century Indian mathematician Bhaskara I, Brahagupta’s ‘Brahhma Sphuta Siddhanta’ is probably the earliest known text to treat zero as a number in its own rigth, rather than as simply a placehoder digit as was done till then.
            Brahmagupta also dedicated a substantial portion of his work to geometry and trigonomery.

Why is Aryabhata considered to be one of the greatest of astronomers?


Aryabhata is a famous indian mathematician and astronomer, who was born in 476 AD, he studied at the University of nalanda. Later, he become the head of the university.
Aryabhatta Great Mathematician
ARYABHATA
Aryabhata is considered to have changed the course of mathematics and astonomy to a grate wxtent. He was the first to deduce that the Earth is round, and that it rotates on its own axis, creating day and night. He declared that the moon is dark and shines only because of sunlight, and that the eclipses are caused by the shadows cast by the Earth and Moon.
           
 His most famous works are Aryabhatiya, and the arya Siddhanta. Aryabhata was the first in the line of great mathematician-astronomers from the classical age of  Indian mathematics and astonomy. India’s first satellite is named after him.

Why was Varahamihira considered one of the nine jewels of Vikramaditya’s court?

Indian astronomer, mathematician, and astrologer

Varahamihira

Varahamihira was an indian astrologer, astronomer, and mathematician who lived in Ujjain between 505 and 587 AD. His book ‘Pancha Siddhanta’ holds a prominent place in the realm of astronomy. The work is a treastise on mathematical astonomy, and it summarizes five earlier astronomical treatises.
            Varahamihira’s other works reveal his discoveries in the fields of geography, science, botony, and animal science.
            In his treatise on botanical science, Varahamihira presents cures for various diseases afflicting plants and trees. His work ‘Brihat Samhita’ gives us desciptions of heavenly bodies, their movements, and conjunctions.


            Varahamihira made some important mathematical discoveries as well. He was considered to be one of the nine jewels or navaratnas of the court of the legendary ruler Vikramaditya of Ujjain for his contributions to different branches of science.

Who was nagarjuna?

Nagarjuna was a great indian scientist who was born in Gujarat in AD 931. He was a chemist, an alchemist, metallurgist and medicine man.
            As an alchemist, he knew the art of transmuting base metals to look like gold. The Arabs learnt the technique from him, and called it AI kimia. Medieval Europeans learnt about it from the Arabs, and called it alchemy.
Nagaruna’s most famous work is ‘Rasaratnakara,’ which deals with preparations of rasa- or mercury- compounds. In his treatise, he has discussed methods for the extraction of metals like gold, silver, tin, and copper.


            As the author of medical books like ‘Arogya manjari’ and ‘Yogasara’, he also made significant contributions to the field of curative medicine. Because of his profound scholarliness and versatile knownledge, he was appointed as chancellor of the famous University of Nalanda. He was one of the wizards of chemistry, and his discoveries continue to impress and astonish scientist even today.


CHARAKA SAMHITA

‘Charaka Samhita’ is the famous Ayurvedic treatise written by Charaka. It has remained a standard work on the subject for more than two thousand years, and has been trsnslated into many languages, including Latine and Arabic.

Why is kanada associated with the atom?

The sage kanada, who lived in the 6th century BC, was the world’s first proponent  of the ‘atomic theory’. He stated that the atom- or paramanu- is indivisible, and that the world is made up of atoms. He has classified all the objects of creation into nine elements earth, water, light, wind, ether, time, space, mind, and soul. According to him, every object of creation is made of atoms. Kanada added that there are a variety of paramanu that are as different as the different classes of substances. Each paramanu has a peculiar property which is the same as the class of substance it belongs to. Kanada spoke of the tendency of atoms or paramanu to combine together to form what we now call molecules. Kanada also put forward the idea of chemical change, which he said is caused by heat. Kanada was a genius, philosopher, and the pioneer of the atamic theory.

HALAYUDHA
Halayudha was an indian mathematician who lived in the 10th century AD. He is believed to be the first person to give a clear description of a geometrical arrangement now known as pascal’s triangle.

Why is charaka called the ‘the father of medicine’?

Acharya Charak (600BC)
Acharya Charak
Charaka was born around 300 BC. He is belived to have benn a wandering Buddhist monk and physician, and was one of the principal contributors to the ancient art and science of ayurveda. He wrote a famous treatise called ‘Charaka Samhita’, which is used as a referance book even today. Charaka was the first physician to present the concept of digestion, metabolism, immunity, and the fundamental of genetics. He studied the anatomy of the human body and various organs, and calculated 360 as the total number of bones, including teeth, present in the human body. He wrongly believed that the heart had one cavity, but he was right when he considered it to be a contolling center.


            Charaka never just treated diseases. He would first study all the factors, including enveronment, which influence a patient’s disease, and only then, prescribe a course of treatment. To this day, charaka is called the father of medicine, and is famed for his power to illuminate the reason for illness with the lamp of knownledge and understanding.

Why is sushruta called ‘the father of plastic surgery?’

SUSHRUTA STATUE
SUSHRUTA STATUE
Sushruta was one of the earliest surgeons in recorded history. He lived in the 6th century BC, nearly 150 years before hippocrates, and left a book, the ‘Susthruta Samhita,’ explaining his surgical methods.
            In his book, sushruta described how to pull teeth, how to fix broken bones, and how to fix blockages of the intestines.
Sushruta was the first physician to advocate what is today known as the ‘caesarean’ surgery. He was also an expert in removing kidkey stones, and locating and treating fractures.


            Sushruta was the first physician who mened a nose almost 26 centuries ago. The technique he used is not very different from what a plastic surgeon uses today.

Why is Baudhayana associated with the pythagoras theorem?



BAUDHAYANA (PYTHAGORAS)
BAUDHAYANA
A famous theorem in geometry, known as the pythagoras theorem was actually explained by an indian mathematician called baudhayana, many years before pythagoras was born. Baudhayana lived around 800 BC. Pythagoras lived between 580 and 500 BC. Baudhayana was the author of one of the earliest documents in indian mathematics. It is believed that pythagoras actually travelled to Egypt, and then india, and learned many important mathematical theories, among them what is now known as the pythagoras theorem. Baudhayana has made many other important discoveries. These included how to draw a circle and a square having the same area, the value of the square root of two, and the approximate value of ‘pi’ which is calculated and corrected to five decimals.

Thursday, June 6, 2013

INTERNET SERVICE PROVIDER

                  
An Internet Cafe in China

                   An internet service provider is a company that acts like a gateway between your computer, and the rest of the net. An internet service provider or ISP, maintains cabling and network services in order to transfer and deliver web content to those paying the subscription fee. Depending on where you live, you might pay a set price per month or year, for unlimited access. You can also opt for an hourly rate or a tariff based on how much you download. The ISP you select gives you a software package, username and password. Equipped with a device called a modem, you can then log on to the internet, browse the World Wide Web.

Spam

When many copies of the same message flood the internet, the message is considered to be spam or junk mail. Spam is basically any kind of unwanted online communication. The most common form of spam is annoying but harmless while others can be a part of a fraudulent scheme. To protect yourself against email spam, use email software with built-in spam filtering.

search engines important

                               A search engine is a software program in your computer that enables you to locate information on the World Wide Web. Searchengines look through their own databases of information in order to find what it is that you are looking for. To use a search engine, you must find type in what you want to find. The search engines software quickly sorts through millions of pages in its database to find matches to the words you have typed in.

Ted Nelson
Ted Nelson
Hypertext





Hypertext is a special database system. It links related objects like text, pictures, and music programs. When you select an object, you can see all the other objects that are linked to it, and access them by clicking on that phrase or object. Example, if you are reading about a singer, the name of his most famous songs will be part of the document. If you click on a name, the words of the screen. Hypertext was invented by Ted Nelson in the 1960’s.

WEB BROWSER

Logo of Web Browser Google Chrome
Logo of Web Browser Mozilla Firefox
                  

                                      








Every time you go online, visit websites, browse different web pages, or go to your favorite email portal, you use a web browser. Web browsers are basically software programs that allow you to search for, and view various kinds of information on the web, such as web sites, video and audio. The browser gets in contact with the web server, and requests for information. The web server receives the information, and displays it on the computer.
                         A web browser is important because it allows anyone to ‘browse the web,’ by simply pointing and clicking, bypassing the need to know commands used in software languages. The parts of a browser include the status bar, address bar, title bar, tool bar, display window, and scroll bar. The most popular web browsers today are internet Explorer, Mozilla Firefox, Safari, Opera, and Google Chrome etc. To sum up, web browsers have helped shape the internet as we know it today, making web browsing a very pleasant experience.


Passwords

Passwords are commonly used to access your computer or email. A password is a secret word, or string of characters that proves your  identity, and prevents unauthorized persons from viewing your computer files or accounts.