"Opposites charges attract; like charges repel" is a long-held fundamental principle of physics that you might have heard at school, but your teacher may have been wrong. Researchers from the ...

Legislators change laws from time to time, but Mother Nature's laws are eternal - or so it has seemed. Now, though, scientists are debating clues that suggest the laws of physics change over time, ...

The hydrogen molecule H 2 is the simplest stable molecule, with two protons and two electrons bound together. Scientists have studied it for more than a century because it’s small enough that theory ...

The goal of drive-system engineers is usually pretty straightforward. Specify the smallest motor and drive needed to accelerate and run a load at a required rate, and determine the braking forces ...