Dr Rajiv Desai
An Educational Blog
THE COMPUTER AND INTERNET
THE COMPUTER AND THE INTERNET: Prologue: Millions of people read my comments on internet and yet,majority of them have very little knowledge of computer/internet and hence I am posting this comments to educate them. Today,we live in computer age,the computers are found everywhere and it has created global awareness. Computer is defined as a programmable machine that computes(stores,processes and retrieves) information(data)according to a set of instructions(program). Church-Tuning theory of mathematical versatility suggests that any computer with certain minimum capacity,in principle, can perform the same task that any other computer can perform. Computers are of 2 kinds,analog and digital. Analog computer is slower,having continuous inputs and uses mechanical devices like gear/rachet/lever to perform mathematical task, for example,speedometer in a car or electricity meter in house etc.It translates variables in a given problem into analogous variations in electrical quantity like current/voltage and solve original problem by solving an equivalent problem(analog) in electrical […]
THE SWINE FLU
NOVEL H1N1 INFLUENZA OF THE YEAR 2009 (Misnomer- Swine Flu) Prologue: I never wanted to write on this subject because information is readily available on TV but as usual, Media is creating panic in the mind of people by showing every death as breaking news. Abbreviation used: Novel H1N1 influenza = H1N1 flu = HNF Let us start with number of deaths per year due to various infectious diseases in the world. Infectious disease deaths in millions Pneumonia 4.18 Diarrhea 2.16 HIV 2.08 TB 1.46 Malaria 1.3 Seasonal flu 0.5 HNF 0.002 People can see that there is no comparison between deaths due to other infectious diseases and HNF. However, HNF is a caused by a new virus and therefore people do not have immunity against it and so some amount of concern is acceptable but the virus is having low virulence .However, winter is a season of […]
