Not only do large TnT explosions look just like the nuclear explosions we are shocked and awed by, they also radiate just like them at 11000k. This number indicates fakery, but the point remains: how could anyone tell the difference between the two? It’s easy here, since nuclear is likely a fairy tale.
Experimental observations indicate that electromagnetic (EM) radiation is emitted after the de-tonation of high explosives (HE) charges. The movement of ionized atoms, particles and electrons seems to be the underlying cause. Expansion of the detonation products (DP) drives a strong (~1kb) shock in surrounding air. This forms an intense thermal wave (T ~11,000 K) with duration of ~20 microseconds. Such temperatures create significant ionization of the air. According to Ohm’s Law, movement of ionized patches generates current; and according to the Biot-Savart Law, such currents induce electric and magnetic fields.
h/t @Notsofreemason in bit.ly/fakechatNo tags for this post.