LC Oscillator

LC Oscillator

There are fully charged capacitors. What happens if the capacitor draws current into the inductor? What is the similarity between physical vibration and electrical vibration? LC oscillator An LC circuit(also called a resonant circuit) is an … more

Capacitor Simulation

Capacitor

Capacitor A capacitor is an electronic component that temporarily holds charges. The stored charges can work while flowing again. Compared to a river flow, a capacitor can be likened to a dam that holds a river. … more

Tidal Force

Tidal Force

Tidal force Earth is not an object like a point (· ), but a rigid body (●) with a certain volume, so the gravity applied to each part is slightly different. This difference in gravity applies … more

압력과 면적의 관계 Pressure and Pressing Area

Pressure and Pressing Area

The force applied per unit area is called pressure. If the force applied to any two points is the same, the larger the area, the smaller the pressure. Conversely, the smaller the area, the greater the … more

FND

7-segment display(FND)

7-segment display, FND Parts that place multiple LEDs to display numbers or hexadecimal characters are called Seven Segment Displays or FND (Flexible Numeric Displays). It can display all numbers from 0 to 9 with only seven … more

Uniformly Accelerated Motion

Uniformly Accelerated Motion

Motion of changing speed When a force of a certain size and direction acts on an object, the object moves at a constant rate of speed. These movements are easy to find around us. For example, … more

Why are Cells Small?

Why are Cells Small?

Why are cells so small? Living cells are constantly exchanging substances with their surroundings. Cells have to absorb nutrients and get waste products out. Most cells, including our body, need to absorb oxygen to get energy. … more

Galilean Moons Simulation

Galilean Moons

* This simulation refered the link below for Jupiter’s satellite data. https://en.wikipedia.org/wiki/Galilean_satellite Galilean satellite Jupiter, the largest planet in the solar system, has many moons. Jupiter’s representative moons include Io, Europa, Ganymede, and Calisto. These four … more

Bimetal

Bimetal

Bimetal Bimetal is a combination of two metals with different degrees of thermal expansion, and when the temperature of the bimetal increases, it bends toward the smaller degree of thermal expansion. Such bimetals keep the temperature … more

Elevator Simulation

Inertia Force of Elevator

Elevator and inertia Elevators are an excellent place to feel the inertia force. Consider the case of taking an elevator and trying to go up from the lower floor. When you press the button that goes … more

Radio Wave Communication

Radio Wave Communication

The basic structure of the antenna comes from a capacitor. An antenna is a device for sending and receiving electromagnetic waves. A typical dipole antenna has the form of a wire with both ends cut off. … more

Dipole Antenna

Dipole Antenna

The basic structure of the antenna comes from a capacitor. An antenna is a device for sending and receiving electromagnetic waves. A typical dipole antenna has the form of a wire with both ends cut off. … more