Take a Walk on a Virtual Beach

Click the picture to explore Virtual Sand

Deep Thought: There's Not That Much Water and Air

Left: All the water in the world (1.4087 billion cubic kilometres of it) including sea water, ice, lakes, rivers, ground water, clouds, etc.

Right: All the air in the atmosphere (5140 trillion tonnes of it) gathered into a ball at sea-level density. Shown on the same scale as the Earth.

Windy Landing

Good weather for sailing...not so good for landing an Airbus A320.

Over the weekend, a Lufthansa Airlines flight scraped its wing on the ground during a landing attempt in Hamburg, Germany.