All articles tagged with #microwave ovens
Many microwave ovens come with a "popcorn" button, but popcorn companies advise against using it. The button is forbidden because microwave popcorn bags stay sealed when they begin to pop, preventing the moisture sensor from detecting anything initially. However, once the pressure in the bag builds up, it releases steam, which the microwave can detect.
The mesh grating on microwave oven doors serves as a Faraday cage, protecting users from harmful electromagnetic radiation. The holes in the mesh are too small for microwaves to pass through, allowing them to bounce back into the oven while visible light can penetrate. This design not only ensures safety but also enables the appliance to function properly by allowing microwaves to heat food through random bouncing. While microwaves emit non-ionizing radiation, which poses a relatively minor threat compared to other forms of radiation, there is no need for concern as the amount of radiation escaping a microwave oven is minimal.
A DIY enthusiast has created an electromagnetic sheet metal handler using the transformers from old microwave ovens. The open-frame electromagnets, when energized with a battery from a Ryobi cordless tool, can stick to sheet metal. The creator built a prototype and then a more polished version, which was 3D-printed from lime green filament. The video shows the design and build, as well as field testing.