A wave of dust billowed through the canyon.
"They were faced with this really bombastic wave of dust and debris in the hallways, ceilings collapsing, the essential services being discontinued without notice – if they have to do some plumbing work they just turn off the water without notice," he said.
The RAMS/HYPACT model accounts for advection, convection, and dispersion of emissions after the collapse of the towers, but is not constructed to model the initial wave of dust and debris.
With grasshoppers pinging off the windshield like hailstones, Marvin Schrank mows through row after row of ripe milo maize, swarms of the insects rolling in waves of dust just ahead of his John Deere combine.
After six years studying the pattern, a research team led by astronomers from Wesleyan University in Middletown, Conn., reported yesterday that the light is being turned on and off by waves of dust grains, rocks and possibly larger objects that swirl about the Sun-like star in a broad disk.
Researchers now can tackle the mystery of why the winds create sooty waves of dust particles for only a few months during each 8-year orbit, Williams says.
In the most famous such system, known as WR140, colliding winds create dense waves of dust once every 8 years as the stars whip around each other--getting as close as the distance between Mars and our sun.
From the back of the heard emerges a host of warriors, hundreds strong, riding the waves of dust, some of the riders popping up from suicide positions, revealing their numbers at the last minute, the legendary death bands, horrible, their shields bedecked with shards of mirror, clasping and refracting millions of shards of light into the eyes of the onlookers bestride their hoof-shifting horses.
All of a sudden, we were engulfed by a tidal wave of black dust and chunks of rocklike particles.
A silent wave of tiny dust particles and other pollutants has been sliding over the hills and down the Pearl River from mainland China, from Guangdong Province, once a quiet agricultural area and now one of the world's biggest manufacturing centers.
An old woman in a wheelchair being pushed down Greenwich Street, visible one moment and lost the next as another stampede began and the second wave of stinging dust swooshed through.
