Our physics expert picks his top-five equations, plus a scheme to supply US power needs with a bucket of baseballs. Thanks, ...

That points to another mechanism for chorus wave production—namely, changes in the frequency of the magnetic field. These frequency changes can give rise to—and can also arise from—high ...

And when he entered Bears headquarters at Halas Hall, he was met with … a standing ovation. How about that sense of humor from Johnson, jokingly insisting everyone get back to work after they ...

Advances in THz nonlinear optics, which can be used to change the frequency of electromagnetic waves, are essential for the development of high-speed wireless communication and signal processing ...

Nevertheless, we may expect that these changing fields will produce electromagnetic radiations the maximum wave-lengths of which are comparable to stellar dimensions. Such low-frequency radiation ...