Science
Ocean Acidification: The Other Carbon Dioxide Problem
The oceans absorb a third of our CO2, and it is changing their chemistry. Ocean acidification is the other carbon dioxide problem…
Author: <span>Khabar 24h Editorial Desk</span>
Khabar 24h Editorial Desk — our explainers are prepared by the Khabar 24h editorial team using AI-assisted research tools, and every piece is reviewed by a human editor before publishing. We do not claim original reporting: our work is turning complex topics into simple, accurate summaries. Spotted an error? Write to contact@khabar24h.com — our corrections policy aims for same-day review.
Science
How the Heart Pumps: The Engine of the Human Body
One hundred thousand beats a day, 7,500 litres pumped, no days off. The electrical and mechanical engineering inside your fist-sized, tireless heart.
Technology
What Is Two-Factor Authentication? How to Lock Down Every Account
Passwords alone no longer protect your accounts. This guide explains two-factor authentication: how it works, which methods are safest, and how to…
Sports
How Cricket Talent Scouting Works in India: From School Cricket to the IPL
From school maidans to IPL auctions: this guide explains how cricket talent scouting works in India, the tournaments scouts watch and what…
Technology
How to Learn Coding in 2026: Best Languages and Free Resources for Beginners
Learning to code in 2026 is easier than ever, with AI tutors and free courses. This roadmap covers the best first languages…
World
Global Migration Explained: Why 300 Million People Live Outside Their Birth Country
300 million people live outside their birth country, the most ever. This explainer shows why people migrate, where they go and how…
Sports
How Athletes Recover: Ice Baths, Sleep Science and Recovery Techniques
Ice baths, compression gear and sleep science: what actually works in athlete recovery, and what is just expensive theatre. The evidence, without…
Politics
The African Union Explained: How Africa’s Continental Body Functions
The African Union spans 55 states and 1.4 billion people, with peace missions, a free-trade area and G20 membership. How it works…
Science
Sea-Level Rise: How Melting Ice Reaches India’s Coastal Cities
Melting ice thousands of kilometres away is raising seas along India's coasts. Here is how sea-level rise reaches Mumbai, Chennai and Kolkata.
Science
Why Do We Age? The Biology of Growing Old
Ageing is damage outpacing repair across a dozen interlocking processes. What science knows about why we grow old, and whether it can…