On this group we shall abide by the strict scientific definitions of waves (rays) and particles. Antiquated language is confusing to say the least.
The name "Cosmic Rays" is a perfect example, they are indeed of cosmological origin but are not rays at all, rather the are high energy charged particles. In the era they were first noticed, they were little understood and incorrectly named, but it has stuck. Ironically the REAL Cosmic "Rays" (visible light, heat, radio and microwaves, X-Rays, and Gamma Rays to name the obvious), are never called Cosmic Rays.
George Dowell
