How the northern lights earn their colors: electrons, solar winds, excited oxygen

Minnesotans and others around the country got a rare treat on Nov. 11 with an aurora borealis supercharged by the sun.

Cosmic ray puzzle resolved as scientists link 'knee' formation to black holes

Milestone results released by the Large High Altitude Air Shower Observatory (LHAASO) on November 16 have solved a ...

How sound and light act alike—and not—at the smallest scale

A world-famous light experiment from 1801 has now been carried out with sound for the first time. Research by physicists in ...
IEEE

Stochastic Modeling for Extra Propagation Loss of Tunnel Curve

Abstract: Due to the extra loss resulting from tunnel curve, most of the theoretical models cannot be directly used for propagation inside curved tunnels. In this paper,extensive simulations are made ...