1 Common rashes include eczema, poison ivy, hives, and athlete's foot. 2  Infections that cause rashes may be fungal, bacterial, parasitic, or viral.  Over-the-counter products may be helpful treatments for many skin rashes.
The conditions under which this process occurs happen in two ways. According to the Cornell Center for... Atoms emit a photon when an electron falls from a high-energy state to a low-energy state. The conditions under which this process occurs happen in two ways. According to the Cornell Center for...
1 Sometimes scattering occurs with the final photon having the same energy as the incident photon. 2  This process is known as Thomson scattering. 3  Sometimes one photon gives all of its energy to a single atomic electron, ionizing the atom in a single interaction.