It is better to use the button button type.
Two effects
1. Wave heat effect. The electromagnetic field in the microwave oven cavity changes at a speed of up to 2.45 billion times per second (microwave frequency is 2450MHz), which acts on polar molecules such as water molecules in the food, so that it swings back and forth 2.45 billion times\/second, resulting in high heat due to the high-speed wheel pendulum friction movement between water molecules, so as to achieve the purpose of heating.
2. Biological effects. Because microbe cell fluid is better at absorbing microwaves than other surrounding media, cells exposed to microwave electromagnetic fields will rupture rapidly, resulting in cell death.