Shop woodworking metalworking Examples of shop tools Bandsaw – a power tool which uses a blade consisting of a continuous…

Sensor – (also called detector) is a converter that measures a physical quantity and converts it into a signal which…

pictured … Smoke detector 1: Optical chamber with labyrinth 2: Cover 3: Case molding 4: Photo diode 5: Infrared LED…

Smartphones are handy little computers that fit in your pocket, or anywhere else that a compact, easy to program computer…

Engineers Without Borders (EWB) – more than 12,000 professionals and students from engineering, public health, anthropology and business. Through its…

Ship – any large buoyant watercraft. Ships are generally distinguished from boats based on size and cargo or passenger capacity.…

Semi-trailer truck – a large vehicle that consists of a towing engine, known as a tractor or truck, attached to…

Sewing machine – machine used to stitch fabric and other materials together with thread. Sewing machines were invented during the…

Screw – one of the six simple machines. Screw: An inclined plane wrapped around a shaft or cylinder. This inclined…

Seawall – a form of coastal defense constructed where the sea, and associated coastal processes, impact directly upon the landforms…

Seat Belts Mean Safety Seat belts have been keeping people safe in cars for more than fifty years. The best…

self-driving cars fully autonomous car self-driving cars – news, updates drivers want… – drivers and passengers want mainstream features that…

Scissors – Who invented scissors? What were early scissors made of? Is there more than one type of scissors? Scissors…

Human waste – everybody poops. Sanitation toilets human waste safe drinking water water for cooking, bathing disposal of waste water…