Friday, 3 August 2012

INTERESTING FACTS ABOUT PI



“AND HE MADE A MOLTEN SEA, TEN CUBITS FROM THE ONE BRIM TO THE OTHER: IT WAS ROUND ALL ABOUT, AND ITS HEIGHT WAS FIVE CUBITS: AND A LINE OF THIRTY CIBITS DID COMPASS IT ROUND ABOUT”
The above Biblical verse was found in the list of specifications of King Solomon’s temple that was built around 950 B.C
There are historical evidences to prove that the area of a circle was calculated by taking 3 times the square of its radius by the Babylonians. An ancient Babylonian tablet found between 1900-1680 B.C had the value of pi as 3.125.      Ancient Egyptians calculated the area of a circle using the formulae (8d/9)2. Where “d” is the diameter of the circle. This formula gives an approximate pi value of 3.1605.
An ancient Mathematician, Archimedes of Syracuse, who lived between 287-212 B.C, derived the value of pi based upon the area of a regular polygon inscribed within the circle and the area of regular polygon within which the circle was circumscribed.
In 1706, an English mathematician introduced the Greek alphabet pi to represent the said value. However in 1737, Euler officially adopted the symbol to represent the value. In 1897, a legislative of Indiana tried to legally establish the most accurate value of pi. However the Bill was not passed.

The value of pi with first 100 decimal is 3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679.
Another interesting fact is that you would not find a zero value in that first 30 digit of pi.
A business man in Cleveland US, published a book in 1931 to announce the value of pi to be 256/81.if you want to print a billion decimal values of pi ordinary font it would stretch from New York to Kansas.
Did you know that it took Yasumasakanda, a professor at the University of Tokyo, approximately 116 hours to compute 6,442,450,000 decimal places of pi on a computer?
In 1706, John Machin, introduced a rapidly converging formulae for the calculation of pi. It was 
π/4 = 4 tan-1(1/5) – tan-1 (1/239)
In 1949, it took 70 hours to calculate 2037 decimal places of pi using ENIAC (Electronic Numeric Integrator And Computer).
A German Mathematician, Ludor Van Ceulen devoted his entire life to calculate the first 35 decimal places of pi.
In 1768, Johann Lambert proved that the value of pi is an irrational number and in 1882 Ferdinand LIndermann, a renowned mathematician proved that pi is a transcendental number.
Do you also know that the pi day is being celebrated 14th March annually which is derived from its first 2 digits and its approximation day on 22nd July annually (22/7)
When next you are anywhere on planet earth on this days, remember the works of this great men and the fascinating beauty of pi. Also please don’t forget to take a pie .

Thank you


Monday, 21 May 2012



 THE BIOGRAPHY OF ALEXANDERANIMALU

He was born on August 28, 1938, the fifth child to Mr. Michael Animalu Nwakudu and Mrs. Josephine Nkenwa in Okuzu, Oba of Idemili South L.G.A. of Anambra State of Nigeria, and attended St. Paul’s CMS Church School, Isu-Oba (1943–44); St. Thomas’s CMS Church School, Okuzu (1944–45) , CMS Central School, Isu-Oba (1945–51), Dennis Memorial Grammar School (1952–56) for secondary education and (1957–58) for Higher School Certificate. He then attended University College, Ibadan (1959–1962) where he was taught by Professor Chike Obi and Professor James Ezeilo. Professor Animalu graduated with B.Sc. (Maths) and won the Faculty of Science Prize for the best performance for two consecutive years. He also won the Crowe's Prize on Abstract Algebra and Theory of Numbers and the University College Postgraduate Scholarship.
It was this College Scholarship that saw him through the University of Cambridge in the UK between October, 1962 and December, 1965 when he obtained the M.A. (Cantab) and Ph.D. (Maths) in Theoretical Solid State Physics. The high quality of his Ph.D. thesis was attested to, when the main results were published in the Philosophical Magazine in 1965 and included in W.A. Harrison's book entitled "Pseudopotentials in the Theory of Metals".[3] The book contained the model potential tables which were in such high demand by researchers in the field of metal physics and semiconductor electronics that the Ph.D. thesis work as published in Philosophical Magazine became by 1983, a citation classic, having been cited more than 729 times between 1965 and 2001.[4] He is the only African in Physics to have earned such a record of citations, his paper being the best among the best twelve cited papers from the University of Cambridge in fifty years (1930–1980). It is of interest to note that four of these twelve most cited works from Cambridge have subsequently won the Nobel Prize in Physics.

Between January, 1966 and December, 1967, Prof. Animalu was Research Associate in Division of Applied Physics, Stanford University and between January, 1968 and August, 1968, he was a visiting scientist at the Department of Physics, University of North Carolina, Chapel Hill. In September, 1968, he was appointed Assistant Professor of Physics at the University of Missouri, Rolla. His research work was in solid state and elementary particle physics. In 1970, he moved to Drexel University in Pennsylvania, as Associate Professor of Physics. A major breakthrough in his career came in April 1972 when he was appointed a research physicist, at the Lincoln Laboratory of Massachusetts Institute of Technology (M.I.T.) working under H.J. Zeiger and J.B. Goodenough on research projects related to development of computer core memory and primarily on the development of the transition-metal model potential, thus extending his Ph.D. thesis area to now include all elements of the periodic table. It was within this period that he completed his principal book, Intermediate Quantum Theory of Crystalline Solids published by Prentice-Hall in 1977. It became a world-wide classic with an Indian Edition published by Prentice-Hall of India in 1978. It was also translated into Russian by the Russian Academy of Science in 1981, reprinted in US in 1994 and is currently on the world-wide web.
After a period of teaching and research in the UK and US between 1962–1976, he returned to Nigeria in 1976. Within a year of coming back, he began to make contributions to the development of Nigeria.
He was invited to become a Professor of Physics in 1976 in the Department of Physics and Astronomy, University of Nigeria, Nsukka by his former lecturer and the then Vice Chancellor of the University, Professor Emeritus James Ezeilo. The former Nigerian President, Chief Olusegun Obasanjo, presented him with the Nigerian National Order of Merit (NNOM) [5] award for Basic Science in 2000. He rose in academic positions becoming Head of Department of Physics, UNN in 1981 and 1994 and Dean, Faculty of the Physical Sciences, UNN. His proposal to the Federal Government of Nigeria led to the establishment of a Centre for Energy Research and Development in the UNN in 1980. He became the first substantive Chairman of its Governing Board in 1989. The idea for a National Mathematical Center in Nigeria was hatched by Professor Emeritus Ezeilo and Professor Emeritus Animalu. He was the 1990 Ahiajoku lecturer, the highest Igbo academic privilege given to such scholars as Professor Chinua Achebe and Professor Onwumechili. His theory of high-temperature superconductivity based on the novelty of the pairing mechanism for electrons was published in Hadronic Journal in 1991 and led to his subsequent nominations for Nobel Prize in Physics. He has trained many Nigerians in the field of theoretical physics and solar energy and established two youth organizations, Society for Promotion of Indigenous Inventions and Creativity (SPIIC) and Century-21 Club.
He is interested in using geometry to investigate African culture and system of thought, thus with Willy Umezinwa, he coauthored From African Symbols to Physics. He has worked with one of his biographers, Jeff Unaegbu, on ICT as the lost but renascent and evolved language of African system of thought in the 21st century and the dialogue between western and African worldviews. He is currently using geometric thought processes to investigate African multilingualism and Igbo artifacts, origins and system of thought, especially as seen as ancestral to Adam in the works of Professor Catherine Obianuju Acholonu. Professor Animalu has more than 80 scholarly articles to his credit.

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