The section on Particle Physics went inward — to the smallest things that exist. This one goes outward, to the largest. And the two are secretly the same story, because to study the universe we use the very particles and waves of that section — light, radio waves, neutrinos, gravitational ripples. This section is about…
Let us begin with the oldest question a curious child ever asked: if I keep cutting something in half, again and again, what is the last, smallest, uncuttable piece? The ancient Greeks gave it a name — atomos, the ‘uncuttable’. For two thousand years we thought that was the atom. Then we found the atom…
Basics of Medicines Before therapy, vocabulary. Two distinctions trip up beginners and delight examiners. First — is every drug a medicine? No. A drug is any chemical that affects body function (including morphine and nicotine); a medicine is the narrower set of drugs used specifically to diagnose, treat or prevent disease. Every medicine is a…
Let me begin with a question. Whom does a piece of land belong to? Easy — to whoever holds the title, whoever can stand on it. Now a harder one: whom does an idea belong to? A song you composed, a medicine you invented, the name and logo of the company you built? You cannot…
Renewable Energy Let us begin with the most basic question: what exactly makes an energy source “renewable”? Imagine two buckets of water. One is filled once and, as you keep using it, slowly empties and is gone forever — that is a fossil fuel like coal or petroleum. The other sits under a gently flowing…
3D Printing (Additive Manufacturing) Traditional manufacturing is subtractive — you start with a block of material and carve, cut, or mill away what you don’t need. 3D printing flips this logic entirely: it starts from nothing and builds up the object, layer by microscopic layer, exactly as designed. This is why it is called additive…
The section is elegantly structured around one core question: How do different materials behave in the presence of electricity, stress, heat, or light — and how can we engineer materials to behave exactly the way we want them to? We begin with Semiconductors (the foundation of all modern electronics), move to Superconductors (zero resistance —…
Imagine two industrial revolutions — the first gave us the steam engine, factories, and electricity. The second gave us computers, the internet, and smartphones. Now imagine a THIRD revolution — but instead of machines or computers, it is based on the most fundamental laws of nature itself: quantum mechanics. That is what Quantum Technology promises….
Let me take you to a battlefield — but a silent one. During World War II, Germany encrypted its military communications with a machine called Enigma, believed to be unbreakable. At Bletchley Park in England, a team of mathematicians led by Alan Turing broke it — and historians estimate this shortened the war by years…
Let me begin with a story about a word. In 1920, a Czech playwright named Karel Čapek wrote a play called R.U.R. (Rossum’s Universal Robots), about artificial workers manufactured in a factory. He needed a name for them, and his brother suggested the Czech word robota — meaning forced labour or drudgery. That is how…
