In the 1800s, a German mathematician named Carl Jacobi had a habit that puzzled his students. When a problem was too hard, he did not push harder. He turned it around. His rule was short: “Invert, always invert.” Nearly two centuries later, this rule is one of the most powerful...
Ask anyone in Kerala for a comfort meal and many will say the same thing: a flaky parotta with beef curry, beef fry or beef roast. Small tea shops and famous restaurants serve it from early morning to late night. Some people travel for hours just for one good plate....
On 27 October, the Supreme Court heard a plea on medicine prices. During the hearing, the bench told a story. A medicine distributor’s wife was being treated for cancer at a well-known private hospital. He told the hospital he could buy her chemotherapy injection for Rs 11,000. The hospital refused...
In Japan, you can hire a stranger to play your father at your wedding. In the United States, you can pay a person to walk with you and listen. These are real businesses with real customers. They exist because something quiet and serious has changed in how people treat each...
Inside your skull sits an object that weighs about 1.4 kilograms. That is only 2% of your body weight. Yet it takes about 20% of your body’s energy and about 15% of the blood your heart pumps. It does this on about 20 watts of power, the same as a...
Every day last year, one Indian family gave away about ₹7.4 crore. Shiv Nadar and family gave ₹2,708 crore, up 26% from the year before, mostly through the Shiv Nadar Foundation. It was the fourth time in five years they topped the list. The man and the money Nadar is...
Imagine being asked to memorise nearly 25,000 streets, thousands of landmarks, hundreds of routes and the locations of hospitals, hotels, theatres, restaurants and public buildings across an entire city. Now imagine being tested on that knowledge while an examiner randomly names two locations and expects you to describe the best...
Every Indian city has a secret workforce. Before sunrise, sweepers and garbage trucks clear the roads while the traffic is gone. They work at night because the streets are empty. Try the same work at 6 PM and the city would choke. Your brain follows the same plan. The Problem...
Here is a fact most people never hear: worry can make your body look ten years older inside. Scientists once studied mothers who cared for very sick children. They looked at tiny caps at the ends of our body’s cells. These caps get shorter as we grow older. The mothers...
Picture a young man in Bangalore. For thirty days, he sits on a chair, closes his eyes, and imagines lifting weights. He does not touch a single dumbbell. At the end of the month, his muscles are measurably stronger. This is not a trick. Researchers at the Cleveland Clinic tested...
