You may not think of salt and sugar as solids because when you see them in the kitchen they are such small particles. But each of these particles is as much a solid as a wooden table, a glass window, or a gold piece of jewelry. A solid is a collection of atoms or molecules that are held together so that, under constant conditions, they maintain a defined shape and size.
Pulse Width Modulation, or PWM, is a technique for getting analog results with digital means. Digital control is used to create a square wave, a signal switched between on and off.
MSM is an especially versatile supplement, and has been used for a variety of applications, such as: anti-inflammatory effects and to reduce acidity in the body, treat gastrointestinal disorders and constipation, increase circulation and promote connective tissue health.