Dr Rajiv Desai
An Educational Blog
THE NANO WORLD
THE NANO WORLD Prologue: Can you identify what is this? A group of scientists discovered that placing gold nanoparticles within the leaves of trees causes them to give off a luminous reddish glow. The idea of using trees to replace street lights is an ingenious one – not only would it save on electricity costs and cut carbon dioxide emissions, but it could also greatly reduce light pollution in major cities. The picture speaks louder than the words. Majority people of the world know very little about nanotechnology & nanoparticles but we are ushering in an era of nano-revolution which is going to change our lives for ever. I myself was as ignorant as you on this subject until I decided to welcome the year 2011 with a novelty. Nano (symbol n) is a prefix in the metric system denoting a factor of 10 – 9 or 0.000000001. The […]
DUALITY OF EXISTENCE
DUALITY OF EXISTENCE _ Prologue: I had posted this comments on face book on 1/1/2010 as my website was not ready but the matter is so important for students that I decided to post it on my website to educate students. _ POSTULATE: Everything in universe that exists, living or non-living, has a dual mode of existence with each mode following a different set of logic/rationale to explain phenomena associated with such existence and the duality is spontaneous ,simultaneous and consistent with the existence of dual universe. _ The universe allegedly came into existence with big bang 13.7 billion years ago with the creation of matter, energy, space and time ; along with laws to regulate them. The Earth, a planet on which we live being a part of solar system with the Sun being the star; and the Sun being a part of our galaxy the Milky Way; and […]
Mathematics of Pi
Pi is defined as the ratio of the circumference of any circle to its diameter. Pi = circumference/diameter. Pi is constant irrespective of the size of the circle. Pi is classified as an irrational number. Pi denotes relationship between a straight line and a curved line of a circle. Pi = 22/7 approximately = 3.14159 approximately. I had calculated Pi way back in 1980 which I am making public today. _ The students can see that only digit 2 is used in formula where n is the maximum natural number. I will give one example. Suppose, n = 5 then, formula will calculate as follows. _ The calculator will calculate this equation as 3.140331156954 _ As n becomes greater and greater in number, Pi value will become as exact as possible. The process will go on and on indefinitely but n can never become infinity. This is a relationship between […]
STEM CEL THERAPY AND HUMAN CLONING
HUMAN STEM CELL RESEARCH AND THERAPY AND ALSO HUMAN CLONING : Today,I will discuss the very interesting and fascinating topic and scientific achievement,namely,human stem cell research and therapy along with human cloning. The intention is to take on various world leaders and religious leaders who have been misleading the people of the world on this subject either due to their ignorance or arrogance or false dogmas. The stem cells have a remarkable potential to differentiate into various specific cell types in the body to serve as a repair system for the body and to replenish other cell types.The stem cells have 2 basic features namely self-renewal indefinitely and differentiation into specific cell type.The stem cell are of 2 types namely Embryonic Stem Cell(ESC) and Adult Stem Cell(ASC).The ESC can differentiate into 220 specific cell types like heart cell,blood cell,bone cell etc etc. The stem cell therapy is useful to treat […]
