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Slide 2 Slide 3 The inventors are Joel Engel and Richard Frenkiel. Joel Engel was born in 1936. Richard Frenkiel was born in 1943. They invented the cell phone to make life easier. Slide 4 The cell phone was invented in 1971. When it was new, the cell phone was $3,500 for one handset! Joel Engel was 35 and Richard Frenkiel was 28 when the cell phone was invented. It was invented in New York. Slide 5 Both inventors had a degree in engineering. Richard Frenkiel went to Tufts University and Joel Engel went to the City College of New York. They both work for AT&T Bell Labs. Slide 6 The cell phone is used all around us today from little kids, to teenagers and adults. This cool invention is used to make calls without a wire or having to be in a house or a car. The cell phone is used by people who travel around. Slide 7 To make a cell phone the workers in phone manufacturing factories use silicon, metal, plastic, and energy. The hardest part of a phone to make is the screen, which is made of liquid crystal.