How is wind chill calculated?
Our bodies emit heat that normally stays in a thin envelope of warm air all around us. When the wind whisks away that warm layer, […]
How is wind chill calculated? Continue reading »
Our bodies emit heat that normally stays in a thin envelope of warm air all around us. When the wind whisks away that warm layer, […]
How is wind chill calculated? Continue reading »
The solar system extends beyond the outermost planet, Pluto. Far from the planets, there’s thought to be a spherical shell of icy comets. Where did
The Oort Cloud – where comets come from! Continue reading »
Two sorts of geologic features are found on most solid planets and moons in our solar system. They are impact craters and volcanoes. We talk
Volcanoes in Space Continue reading »
In 1776, Ben Franklin left Philadelphia by ship for France. By carefully measuring water temperatures along the way, he was able to map the Gulf
Water to Shore Continue reading »
Big, bright sunflowers are beautiful every summer in fields all over the world. But behind the tall stalks lie some unanswered questions about the development
Sunflower helps trace the history of human civilization Continue reading »
On clues to the pattern of future rainfall in the Middle East — that might be buried in the past. Scientists at the Geological Survey
Ancient Rainfall Continue reading »
My question is, why are the clouds white? At midday, when the sun is high in the sky or the clouds, light scattered off the water droplets
Clouds are white or different colors. Why? Continue reading »
Glaciers in the mountains of India, Nepal, and Tibet are melting . . . Lakes sometimes form on top of the glaciers. When they grow
Glaciers Lakes Floods Continue reading »