Presentation on theme: "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."— Presentation transcript:
The inventors are Joel Engel and Richard Frenkiel. Joel Engel was born in Richard Frenkiel was born in They invented the cell phone to make life easier.
The cell phone was invented in 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.
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.
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.
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.