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Abigail Taylor——Works at the International Aid Foundation, Lives in Geneva, Switzerland.
Machines and devices based on the screw are found everywhere in daily life.Wood Screws. A screw is a simple device that is used to attach two things together. ... Nuts and Bolts. A bolt and its matching nut are also used to attach or connect pieces. ... Faucets. ... Drill Bits. ... Boat Propeller. ... Jar Lids. ... Electric Fan.
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