Like the tailored fit, the modern fit also falls between a slim-fit and a traditional-fit dress shirt. An increasingly common term, vintage fit refers to a shirt that has the slim-cut shirt's narrow waist and smaller armholes but with a standard yoke.
The wave equation for a plane electric wave traveling in the x direction in space is. with the same form applying to the magnetic field wave in a plane perpendicular the electric field. Both the electric field and the magnetic field are perpendicular to the direction of travel x.
In the simplest form electromagnetic waves travel like bullets through empty space. A bullet doesn't need a supporting medium to travel. Shoot and off it goes. What makes it more complicated is that EM particles, photons, are not exactly like bullets.