This puzzle is known as the problem of time, and it remains one of the most persistent obstacles to a unified theory of ...

"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 ...

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 ...

Learn how basic physics can be used to estimate solar power output with simple, logical calculations. This video explains solar irradiance, energy conversion, and efficiency in a clear, intuitive ...

Alex Small is a professor of physics who writes fiction to see if he can. He doesn’t study particle physics, but he does work with three-dimensional beings exhibiting hints of intelligence. In the ...