S23E3: Noise Barrier Walls, Front-Load Washers, Bourbon, Flexible Circuit Boards

Sound-absorbing materials are formed into roadside panels designed to reduce traffic noise. Drums, motors, pumps and electronic controls are installed in front-loading washing machines; fermented grain mash is distilled and aged in charred barrels to produce bourbon; and conductive pathways are formed on thin flexible substrates to make circuit boards.