Through different combinations of plane mirrors, Optical Cube can understand the straight-line propagation of light, the imaging law of plane mirrors and the reflection principle of light. The principle and application of the straight line propagation of the solution light are studied.
Read MoreSend InquiryThe circuit of recorder experiment adopts 20-30 second single voice recording and playing integrated circuit. The basic circuits include oscillator, microphone preamplifier, automatic gain control, filter circuit, speaker drive circuit, etc. It has high quality and natural speech restoration technology.
Read MoreSend InquiryDiy building structure uses plastic strips and a variety of connectors, which can be spliced into different shapes of houses and bridges according to the instructions. Through the splicing experiment, we can understand the shape stability of triangles and the construction knowledge of the frame structure.
Read MoreSend Inquiry