What is noise? In our daily life, all sounds that interfere with people's rest, study and work, and interfere with the sounds you want to hear, these sounds are collectively called noise.
I’d like to use the micro:bit to design a course. In this course, I need to use the micro:bit to combine building blocks, motors and crash sensors to make something interesting for the children, and also allow them to build the device.
I designed a simple top ejector. In the process of building, students can learn the knowledge about gear transmission, and then play games and competitions with their peers.
This is a simple "swimming robot". Of course, it can't swim in the water but is able to move on the ground by “swinging” its arm. This project mainly aims to guide children to think about how to speed up by using different materials and the touching places to the ground.
The hot seasons are always sweating us and making the body sticky and uncomfortable, which would lead to the loss of body water, and you feel a dry tongue, even to catch a heatstroke. Therefore, a suitable cooling device would be helpful. We have many cooling methods, such as: air conditioning, fans, frozen drinks, etc. Let's make a simple little fan today.
Urban noise pollution is recognized as the third major public hazard in today’s society. It is no less harmful to humans than other pollution. Data shows that under long-term noise stimulation, the cerebral cortex excites and inhibits excessive balance disorders, abnormal conditioned reflexes, and brain damage to vascular tension will have a great impact on the human body’s nerves, cardiovascular, digestion, immunity, endocrine system and fetal development.