Tiny Collisions Power Sandstorms

Sandstorms can sweep up millions of tons of soil and send dust whirling away for thousands of miles. Although these storms seem enormously powerful, some of their strength actually derives from the tiniest of sources: the midair collisions between individual grains of sand or dust. Image credit: squeaks2569 via flickr Rights: ://bit.ly/c34Awz When airborne particles smash into the ground during a sandstorm, they throw land-based particles into the atmosphere, like water splashing out of a lake. ...