When washing your face every day, we often find that the towels hanging in the bathroom are always wet. Sometimes when the weather is bad, things like glue will ooze from the towels. These things are slippery and uncomfortable to wash your face. Middle school students' science and technology network

Later, we found that if the towel was hung outside the bathroom in a sunny or well-ventilated place after each use, the above phenomenon would not occur, but it was inconvenient. Can you design an instrument that can quickly dry towels without taking them out of the bathroom? After repeated research, with the guidance and help of the teacher, we finally designed and produced the "bathroom towel automatic air dryer". As shown in the figure: we first install a large funnel on the anemometer, and then connect the funnel with the stainless steel tube for hanging towels with pipes and hoses. There are many small holes drilled in the stainless steel pipe. Because the "instrument" is installed in a ventilated place outside the bathroom, the anemometer can rotate with the wind, so no matter which direction the wind blows, the funnel mouth can always aim at the wind direction to ensure that enough wind enters the funnel. After the wind enters the funnel, it blows along the pipeline to the stainless steel pipe for hanging towels in the bathroom, and then blows out from the small holes in the stainless steel pipe. Because every hole is facing the towel, the towel will soon dry.