In the late 1980s and 1990s, the Game Boy redefined handheld entertainment. With its chunky buttons, monochrome screen, and pocket-sized design, it evolved ...

In modern homes, apartments, and offices, multiple entrance doors are common. Traditionally, each door requires a separate doorbell, which increases cost and ...

Ceramics are inorganic, nonmetallic materials (such as carbides, oxides and nitrides) made by shaping at a high temperature. Ceramics are hard, brittle, heat- and corrosion-resistant, and most often ...