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.
UHMWPE rope is used as for mooring and towing. in the engineering such as the large ship in the. shipping industry and offshore oil drilling industries. Its high resistance to heavy load and wear and low. friction coefficient make it useful in sport and. leisure applications [16].