Nature

About the nature we face

Why Can Rain Fall from a Cloud without Wetting the Ground?

2026-09-262026-09-26

Explore virga: precipitation that falls from a cloud without reaching the ground. Learn how evaporation, sublimation and observation height help explain it.

Why Can a Lenticular Cloud Stay Still While the Wind Blows?

2026-09-212026-09-21

A mountain-wave lenticular cloud does not trap the air inside it. Repeated condensation and evaporation can preserve a nearly stationary outline while air flows through.

How Does a Separated Feather Zip Back Together?

2026-09-182026-09-18

Discover how microscopic hooks let a feather vane reconnect, why birds preen, and why reattachment is different from healing broken material.

What Makes the Rings Around the Sun and Moon?

2026-09-152026-09-15

Tiny ice crystals refract light to form 22-degree solar and lunar halos. Compare real photographs to understand angular radius, rainbows, coronas and clues to changing… Read More »What Makes the Rings Around the Sun and Moon?

How Do Water Striders Stay Afloat and Move Forward?

2026-09-152026-09-15

Support and propulsion are different questions. Explore surface dimples, microscopic leg hairs and subsurface vortices to understand a water strider’s movement.

Why Does Thunder Keep Rumbling After a Brief Lightning Flash?

2026-09-132026-09-13

Branching lightning above trees and a road near Goldendale, Washington

Thunder does not come only from the ground strike point. Separating channel geometry from repeated strokes explains how a brief flash can be followed by… Read More »Why Does Thunder Keep Rumbling After a Brief Lightning Flash?