Water Mill Experiment is mainly composed of pendulum handle, water wheel, wheel axle and mortar pestle. The water wheel is a device that converts the potential energy of water flow and drop into mechanical energy.
Read MoreSend InquiryDiy Salt Water Car uses magnesium air salt water battery as the power supply to drive the motor to rotate. Understand that magnesium air salt water battery is a kind of chemical reaction device which converts chemical energy of magnesium alloy and brine into electric energy. It is one of volt batteries and its application.
Read MoreSend InquiryDiy Color Printer uses the printing method of red and blue copy paper, and completes the printing experiment by roller, tracing pen, cartoon paper, cartoon film and other tools. Understand the development history of printing in China (engraving printing - movable type printing - cylinder printing)
Read MoreSend InquiryThrough the transmission of gear set and the ingenious combination of movable baffle in time, Toys Auto Vacuum Cleaner can realize obstacle avoidance, turning, dust collection and other actions, and realize mechanical automation. The structure, principle and application of vacuum cleaner are understood through experiments.
Read MoreSend InquiryLie Detector Experiment makes use of the characteristics of human lying, such as pulse acceleration, blood pressure rise, subcutaneous sweat gland secretion increase, which leads to skin sweating. Through the skin resistance on the finger to detect the change of contact point, through the oscillation comparison circuit to realize, understand the characteristics of human lying and the application of electronic circuit.
Read MoreSend InquiryThis Camera Experiment uses the light reflected by the subject to focus through the camera lens (scene lens) and the shutter that controls the exposure amount. After the subject forms a latent image on the photosensitive material in the dark box, it forms a permanent image after processing (i.e. developing and fixing).
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