Construction
Damp Walls and Seepage: 7 Causes and the Right Fix for Each
Damp patches, bubbling paint and a musty smell are among the most common complaints in Indian homes, especially after the monsoon. The mista...
Construction
Plinth Beam and DPC: Why Walls Get Damp at the Bottom and How to Stop It
Look at older houses and you will often see a band of peeling paint and white salt patches along the bottom metre of the walls. That is risi...
Gadgets
Wi-Fi 6 vs 6E vs 7: What the Numbers Mean and How to Fix Slow Wi-Fi
New routers and phones advertise Wi-Fi 6, 6E and 7. Meanwhile, your Wi-Fi still drops in the bedroom. Understanding what each version actual...
Science
The Science of a Cricket Bat: Willow, Sweet Spot and Why You Knock It In
A cricket bat looks like a simple plank of wood with a handle. In reality, it is a carefully engineered piece of sports equipment, shaped by...
Science
How VAR and Goal-Line Technology Work in Football
Few things in sport spark as many arguments as a VAR decision. Video technology now decides goals, penalties and offsides in top football le...
Science
How Rockets Reach Orbit: Speed, Stages and Why Space Is Hard
Space is only about 100 km up, a short drive horizontally. So why do rockets need to be so enormous? The answer is that reaching space is ea...
Science
How Chandrayaan-3 Landed on the Moon: The Engineering of a Soft Landing
On 23 August 2023, ISRO's Chandrayaan-3 lander Vikram touched down near the Moon's south polar region, making India the first countr...
AI
How AI Image Generators Turn Words Into Pictures
Type "a red double-decker bus on a rainy Mumbai street at night" and seconds later you have a detailed picture that never existed....
AI
How Deepfakes Are Made, and 9 Ways to Spot a Fake Video or Voice
A video of a celebrity endorsing an investment scheme. A voice note from your boss urgently asking for a payment. A clip of a politician say...
AI
Passkeys Explained: Why Your Passwords Are Being Replaced
Google, Apple, Microsoft, banks and shopping sites are now asking you to "create a passkey". It is the biggest change to how we lo...
Science
India's Bullet Train: The Engineering Behind 320 km/h Travel
The Mumbai-Ahmedabad High Speed Rail corridor is India's first bullet train project, built with Japanese Shinkansen technology. Covering...
Science
How Metro Trains Work: Power, Braking and Driverless Signalling
Metro rail has transformed travel in Delhi, Mumbai, Bengaluru and many other Indian cities, and urban rail moves millions of people a day in...
Construction
How Lifts Work, and Why Elevators Almost Never Fall
Many people feel a flicker of worry stepping into a lift, imagining the cable snapping. In reality, modern elevators are among the safest fo...
Energy
Induction vs Gas Stove: Which Is Really Cheaper to Cook With?
Electricity per unit sounds cheap, an LPG cylinder sounds expensive, and everyone has an opinion about which is better for the monthly budge...
Science
How a Pressure Cooker Works: The Physics Behind the Whistle
The pressure cooker is one of the most brilliant pieces of engineering in the Indian kitchen. It cooks dal and rice in a fraction of the tim...
Gadgets
What Do AQI Numbers Mean, and Do Air Purifiers Actually Work?
Air quality is one of the most searched topics in India every winter, and wildfire smoke now sends air quality alerts across North America a...
Construction
How to Keep Your Home Cool in a Heatwave: 12 Engineering Tricks That Actually Work
Extreme heat has become one of the most searched topics in India, and heatwaves now regularly hit Europe and North America too. Air conditio...
Construction
Anti-Termite Treatment for a New House: When, How and Why It Matters
Termites cause enormous damage to homes in India and other warm countries, silently eating through door frames, wardrobes, wooden floors and...
Construction
Why Proper Earthing Matters at Home, and How to Check Yours
Earthing is the hidden safety system of every building. You never see it working, but when an appliance develops a fault, it is the earth co...
Construction
MCB vs RCCB vs RCBO: Which One Protects You From What?
Open the distribution board in any modern home and you will see a row of switches with labels like MCB, RCCB or RCBO. They are not interchan...
Construction
Roof Waterproofing Before Monsoon: Methods, Costs and Mistakes to Avoid
A leaking terrace is one of the most common and frustrating problems in Indian homes. Damp patches, peeling paint and dripping ceilings usua...
Construction
How Long Should Concrete Be Cured? Days, Methods and What Happens If You Skip It
Ask any experienced site engineer which step gets cut first when a project runs late, and the answer is usually curing. It looks like nothin...
AI
How Humanoid Robots Work: Motors, Sensors and the AI That Makes Them Move
Humanoid robots are moving out of research labs and into factory trials. Videos of robots folding laundry, carrying boxes and walking over r...
Energy
Home EV Charger Installation Guide: Power Ratings, Wiring, Safety and Costs
If you buy an electric car, home charging is where you save the most money and time. Installing a charger properly, however, is an electrica...
AI
Quantum Computers Explained Simply: Qubits, Superposition and What They Can Really Do
Quantum computers make headlines with claims of solving in minutes what supercomputers would take thousands of years to do. They are real an...
Energy
Solid-State Batteries: What They Are and Why Phones and EVs Are Waiting for Them
Carmakers and electronics companies keep announcing breakthroughs in solid-state batteries. They promise longer range, faster charging and b...
Construction
3D-Printed Houses: How They Are Built, What They Cost and Whether They Last
Robotic printers can now build the walls of a house in a few days. 3D-printed homes have appeared in the United States, Europe, the Middle E...