Answer:
microwave oven
Step-by-step explanation:
One common kitchen appliance that was invented by accident is the microwave oven. The microwave oven was invented in 1945 by Percy Spencer, an engineer working for the Raytheon Corporation. While conducting experiments with a magnetron (a vacuum tube that generates microwaves), he noticed that a chocolate bar in his pocket had melted. Spencer realized that the microwaves emitted by the magnetron were responsible for heating the chocolate. This accidental discovery led to the development of the microwave oven, which revolutionized cooking by using microwaves to heat and cook food quickly.