New analysis based on simple equations has reduced uncertainty about how clouds will affect future climate change. New analysis based on simple equations has reduced uncertainty about how clouds will ...

For the PDF version of this article, click here. Power electronic system designers know about natural convection, which starts with the simple statement: Hot air rises. For example, a power ...

Because of the shell arrangements of electrons in various atoms and molecules, some substances are quite good at allowing a few electrons to move about freely (e.g., copper, silver, gold, aluminum), ...

It’s the sort of easy maths problem that you can work out in a few minutes using pencil and paper, but physicists in China, Canada and Singapore have now solved pairs of linear equations like this one ...