Category Science

picture showing an airbag after a crash

How car airbags deploy in a split second

Airbags protect occupants by inflating in a fraction of a second during a serious crash. The system does not react to speed alone; it detects a sudden, severe change in the vehicle’s motion and then triggers a rapid chemical gas-generating…

Why do we measure engine power in horsepower?

A car engine rated at 100 HP and a railway locomotive rated at 6,000 HP have something in common: both use horsepower to describe their power. But what exactly is horsepower? Why is an engine’s power measured in horses, and…

El Niño and La Niña explained

Rains are failing, crops are suffering, and many people blame El Niño. Yet few understand what it actually is or how it works. Here is a plain, simple breakdown of how this global climate cycle functions and why it matters…

The Guntur eclipse that revealed helium

Widely used to fill balloons because it is lighter than air, did you know helium gets its name from the Greek word Helios, meaning ‘Sun’? There’s an unusual story behind its discovery. Unlike most elements, helium was first identified not…

Why can’t humans live for centuries?

Living to 80, 90 or even 100 years is considered an achievement, but why can’t human beings live for 150, 200 or even 500 years? Despite advances in medicine, nutrition and healthcare, our bodies have inherent biological limitations. The answer…