Question

who has invented the microwave oven?
who has invented the cellphone?​

Answer 1

Answer:

1.American engineer Percy Spencer is generally credited with inventing the modern microwave oven after World War II from radar technology developed during the war. Named the "Radarange", it was first sold in 1946.

2.On April 3, 1973, Martin Cooper, a Motorola researcher and executive, made the first mobile telephone call from handheld subscriber equipment, placing a call to Dr. Joel S. Engel of Bell Labs, his rival.

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Answer 2

Answer:

$percy \: spencer \: invented \: microwave$