Dr Rajiv Desai
An Educational Blog
SEXUAL HARASSMENT
Sexual Harassment: _____ _____ Prologue: In October 2016, a month before the presidential election, a 2005 tape came to the public’s attention. In raw footage from behind the scenes on Access Hollywood, Republican candidate Donald Trump bragged boldly about kissing women without their consent, grabbing at their genitals, and simply having his way: “…when you’re a star, they let you do it.” In a subsequent debate, CNN’s Anderson Cooper called the actions that Trump described “sexual assault.” Trump called it “locker room talk.” Whatever the term, the behavior and the attitude ultimately proved inconsequential, not sufficiently meaningful or outrageous to derail Trump’s election victory. In January 2017, Trump took up the position as the most powerful man in the world. Yet, almost exactly one year later, scores of women are stepping up and speaking out. They tell heart-breaking, terrifying stories of sexual harassment, and sexual assault at the hands of […]
ATHEISM
ATHEISM: _____ Caveat: This article has no desire to insult anybody in any way at all. If anyone feels offended, it is a regrettable misunderstanding because the criticisms are aimed at the objectives of the belief, never at believers as individuals. I recognize and respect right of all individuals to believe in their faith and their God if that helps them to live better life in the brief period of human existence allotted to them. But religious beliefs and doctrines become dangerous if they threaten the liberty and the integrity of the individual or of the society. _____ _____ Prologue: According to Psalm 14 of the Bible, people who don’t believe in God are filthy, corrupt fools, entirely incapable of doing any good. Before the 18th century, the existence of God was so accepted in the western world that even the possibility of true atheism was questioned. This is called […]
NIPAH
Nipah: _____ Figure above shows burial of a victim of Nipah virus in Kozhikode, India. _____ Prologue: An outbreak of probable encephalitis hit Siliguri, India in 2001. All hell broke loose when a cardiologist by the name of Dr Ajit Maity and a nurse associated with Medinova Florence Nursing Home fell victim to this disease. It was reported that both had contracted it while treating a patient. A few other doctors, nurses and paramedics were taken severely ill in another hospital. Ten among those infected medics later died. Soon, Siliguri started resembling a ghost town. The roads were deserted, shops shut and schools were closed for a week. There was misinformation circulated based on rumour and gossip. But worst of all was that some doctors secretly fled. Some doctors were apprehended at Jalpaiguri Railway Station and Bagdogra Airports by citizens before they could slip away. Red-faced politicians had flown in […]
HUMAN EVOLUTION
HUMAN EVOLUTION: _ Figure below shows conservator Effie Verveniotou and human origins researcher Dr Louise Humphrey examine the oldest nearly complete modern human skeleton ever found in Britain before it goes on display in the gallery. Cheddar Man is a human male fossil found in Gough’s Cave in Cheddar Gorge, Somerset, England. Excavated in 1903, Cheddar Man is Britain’s oldest complete human skeleton. Cheddar Man lived around 10,000 years ago. Analysis of his nuclear DNA indicates that he was a typical member of the western European population at the time, with lactose intolerance, dark skin, blue eyes, and dark curly or wavy hair. ________ Prologue: Recently, minister of state for human resource development of India said that the Darwinian theory of evolution was scientifically wrong and should not be taught in Indian institutions. Many scientists and students signed a petition calling upon him to withdraw his remarks. Three science academies […]
HOLOGRAM
HOLOGRAM: _____ Typical laser-lit transmission hologram ____ Prologue: Suppose you want to take a photograph of an apple. You hold a camera in front of it and, when you press the shutter button to take your picture, the camera lens opens briefly and lets light through to hit the film (in an old-fashioned camera) or the light-sensitive CCD chip (in a digital camera). All the light traveling from the apple comes from a single direction and enters a single lens, so the camera can record only a two-dimensional pattern of light, dark, and color. To be more accurate camera records wave length (color) and intensity (amplitude) of light waves. If you move your head slightly, the photograph remains same i.e. it is two dimensional. The physical world around us is three-dimensional (3D), yet traditional display devices can show only two-dimensional (2D) flat images that lack depth (i.e., the third dimension) […]
