Why Is the Sky Blue but Space Is Black? (And Not Violet)
Why is the sky blue while space looks black? Follow sunlight scattering in air, the longer path at sunset, and why violet light does not dominate what you see.
Weather & Climate
The physics behind rain, heat, storms and the changing ocean.
October Heat (India): Why Is It So Hot in October? (Class 9 Geography)
Why can October feel so hot in India? Follow retreating monsoon clouds, wet ground and humid air to understand why sweat may cool you less well during the day.
IMD Red Alert Meaning: Red, Orange and Yellow Rain Alerts Explained
What do IMD yellow, orange and red rain alerts mean? Learn the action each colour seeks and why expected rainfall alone does not determine the warning colour.
How a Falling Glacier Drowned a Himalayan Valley
How did a Himalayan slope collapse trigger a flood? Follow the bedrock failure, displaced glacier ice and debris that moved downstream through the river valley.
How Kelvin Waves Reach California: El Niño’s Hidden Ocean Motion
What is a Kelvin wave? Follow Pacific winds, the thermocline and Earth’s rotation, then learn why a coastal sea-level reading needs a reference for comparison.
Monsoon 2026 Ends Sep 30, So Why Is It Still Raining?
Why can rain continue after India’s monsoon season ends on September 30? Separate the rainfall count period from the weather department’s withdrawal checks.
Chhattisgarh Flood: How India Predicts River Floods
How does India forecast river floods? Learn how gauges, rainfall and river models support a forecast, and why a measured level differs from a future prediction.
Does El Nino Really Flood Tamil Nadu? 76 Years of IMD Data
Does El Niño guarantee floods in Tamil Nadu? Learn what seasonal rainfall records can show, why regions differ, and why a single climate signal cannot decide.
Why Delhi's Air Turns Toxic Every Winter: The Physics of Smog
Why does Delhi’s air worsen in winter? Use a box-of-air model to connect emissions, wind and temperature inversions, then see what an AQI reading can tell you.
What Is a Super El Niño? (2026 Explained)
What is a super El Niño? Follow trade winds, warm Pacific water and changing rainfall, with a dated look at the September outlook and its forecasting limits.
Super El Niño 2026: What It Means for India & Asia
How can El Niño affect India and Asia? Follow the shift in tropical rain, dry conditions and Tamil Nadu’s wet season without treating an old forecast as live.
Cyclone Arnab Wasn't a Cyclone. So Why Did UP Flood?
Why did flooding occur when “Cyclone Arnab” never became a named cyclone? Separate a storm’s wind category from the rainfall and flooding it can still produce.