Dr Rajiv Desai
An Educational Blog
Defossilization
Defossilization: _ The goal of defossilization is to shift material sourcing away from fossil resources (red) to non-fossil resources, including carbon dioxide, biomass, or recyclate (green path) as seen in figure above. _ Section-1 Prologue: The 2026 Iran war—triggered by US-Israeli military strikes and Iran’s retaliatory actions—has sent profound ripple effects across the globe. The conflict has disrupted one of the world’s most vital maritime chokepoints and reshaped international trade. By disrupting and blocking the Strait of Hormuz, the conflict cut off roughly 20% of global oil & liquefied natural gas (LNG) supplies, and 30% of global fertilizer trade. Crude oil prices surged to nearly $100 a barrel, heavily elevating fuel costs for industries and consumers. Fossil fuels—predominantly coal, oil (petroleum), and natural gas—are primarily used to generate electricity, fuel transportation & cooking, provide industrial heating, and manufacture raw materials for plastics and fertilizers. They form the backbone of […]
Extraterrestrial Life (Life Beyond Earth)
Extraterrestrial Life (Life Beyond Earth): _ Figure above shows Earth, as seen by NASA’s Voyager 1. In this image, taken from 4 billion miles away 33 years ago, Earth appears as a “pale blue dot” representing less than a pixel’s worth of light. Would this light reveal Earth as a habitable and inhabited world? Our search for life on exoplanets will depend on an ability to extract information about life from the faint light of faraway worlds. _ “Two possibilities exist: either we are alone in the Universe or we are not. Both are equally terrifying.” -Arthur C. Clarke, science fiction author and former Planetary Society board member _____ Section-1 Prologue: Is mankind alone in the universe? Or are there somewhere other intelligent beings looking up into their night sky from very different worlds and asking the same kind of question? Are there civilizations more advanced than ours, civilizations that […]
SANITATION
Note: During routine maintenance of website, the article ‘Sanitation’ was inadvertently lost and therefore I am re-instating it in its original form now. It was posted in December 2012 but now it is posted in March 2013. The article ‘Fear’ is following the article ‘Sanitation’. Dr. Rajiv Desai. MD. March 20, 2013 ________________________________ Saturday, December 1st, 2012 SANITATION : _ The picture above shows open defecation near railway track in India. _ Prologue: After writing many articles on topics which concern us in our daily life; right from food, environmental pollution, water and clothing, I thought I must write on the most important and most neglected subject, namely sanitation i.e. safe disposal of human excreta (feces & urine). Till the age of 15 years, I did not have the luxury of private toilet as I was brought up in a middle class environment in Mumbai where shared toilet was the […]
