Same Circuit
Same Circuit In an electric circuit, voltage occurs at both ends of the cell. The place where this voltage is released is called ‘load’. In typical textbooks, ‘load’ is often replaced by a light bulb or resistor. Since a typical … more
Multi Alarm Program
Enter the hour and minute as text, and then the alarm will work automatically at that time. Edit (hour, minute, chime number) Setting result If you enter the alarm schedule line by line in the yellow notepad, you can view … more
Leyden Jar
Leyden Jar The Leyden Jar is a tool (capacitor) created in the 18th century for storing static electricity. The Leyden Jar is made of glass, with metal foil surrounding the inside and outside of the bottle. The two thin metal … more
Movement of Ion particles
* You can move ion particles with the mouse. Movement of Ion particles Ions acquire electric charge by gaining or losing valence electrons, depending on the type of atom. Electric forces act between charged substances. A pushing force acts between … more
Potentiometer
Potentiometer The potentiometer is an electronic component that allows you to adjust the resistance value freely. The potentiometer is used to adjust the volume of sound in audio equipment and so on. How is the structure of the potentiometer? … more
Saturation Mixing Ratio
Water vapor in the air Liquid water can evaporate and turn into water vapor in the air. Conversely, water vapor in the air may turn back into the water. Some are very dry, with no moisture at all, such as … more
Simple Chemical Bonding Simulation
All atomic models showed only the electrons in the outermost shell. All chemical bonds are depicted as planar, but in reality, they can have three-dimensional structures. ‘In case of unstable, display in red’ may contain an error. Chemical Bonding Except … more
Hanoi Tower
The Tower of Hanoi is a mathematical game or puzzle. The objective of the puzzle is to move the entire stack to another rod, obeying the following simple rules: Only one disk can be moved at a time. Each move … more
Micro:bit Ultrasonic Rangefinder
Ultrasonic rangefinder This sensor measures distance using the return time after ultrasonic waves are emitted. Please use the HC-SR04P (or HC-SR04+) sensor for 3V and 5V. Please note that 5V-only HC-SR04 will not operate. Connect the sensor’s Trig terminal to … more
Classroom Lottery Board (Roulette)
It is a lottery roulette where numbers come out randomly. You can change the winning numbers. (2-50) If you turn on the checkbox, the winning numbers will be deleted each time you spin the roulette wheel.
Principle of Speed Gun
Doppler effect Electromagnetic waves (or sound waves) come into contact with another object while traveling; part of the wave is absorbed or reflected. A moving ball likewise absorbs or reflects some of the incoming waves. If the ball were moving, … more
