Dr Rajiv Desai
An Educational Blog
Desalination
Desalination: _ The history of water is equivalent to the history of the world and the history of water quality is equivalent to the history of life. —Andreas N. Angelakis _ Section-1 Prologue: All early civilizations were built on the banks of rivers. Whether it was the Euphrates in the Fertile Crescent or the Tiber in Rome, rivers gave early settlements easy access to abundant streams of fresh water, essential not only for drinking but also for irrigating crops. The availability of water was one of the biggest constraints on the growth of settlement and population size. The layout of Ancient Egypt reflected this. It stretched out like a long snake, hugging the banks of the Nile River. The invention of aqueducts by the Romans first enabled water to be carried long distances, providing the crucial utility to remote stretches of its sprawling empire and allowing populations to […]
SEX EDUCATION
SEX EDUCATION: Prologue: When I was a small child of about 6 to 8 years old, I asked my relatives about how I came to this world. They told me that a child comes from heaven. I was wandering how it is possible; even at that immature age. Nobody told me that relationship between a man and a woman brings a child. When I got admission in medical college at the age of 17 years, my friends who got admission in engineering college came to my house to see anatomy books. I was surprised. I asked them what they want. They told me that they want to know everything about male and female genitalia as they are growing up and they have no knowledge about it. Most teens want to know about sex but do not know how to get information. So they buy magazines & books, see movies, visit […]
