Science simulation

이동준 선생의 자바실험실

What is JavaLab?

Javalab Free interactive science simulation website for school. Simulates various natural phenomena Includes Physics, Chemistry, Earth, Astronomy, Biology, Measurment, Mathmatics… Based on HTML5 Available on mobile devices and tablets also No more…
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용수철 저울

Spring scales

Spring scales The spring scale is a tool that measures the mass and gravity of an object using the spring’s elastic force. Gravity is proportional to the mass of the object, and…
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AM, FM 라디오의 변조

Modulation of AM and FM radio

* The amplitude and wavelength were arbitrarily adjusted to see it easily. * For your understanding, the frequency modulation range of FM broadcasts is exaggerated. Radio frequency The audible frequency, commonly referred…
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그네 타기의 원리 (토크)

The principle of riding a swing

They know how, but they can’t tell the principle. “How can you go so high?” In the world, there are some principles are difficult to describe in words even if everyone knows…
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Force to move the pendulum

Tension by gravity In physics, tension is the force on a string connecting two objects. Generally, the tension is calculated from both ends toward the center.길이 \( l \)인 진자를 Let’s consider…
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연료 전지

Fuel Cell

Fuel cell A fuel cell is a device that converts chemical energy into electrical energy in a reaction in which hydrogen is oxidized to produce water. Fuel cells have less heat loss,…
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변압기 Electric Transformer

Electric Transformer

* We assume an ideal transformer where the excitation current is “0”. A transformer is a device for simply changing the voltage of an alternating voltage. Transformers make it easy to change…
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정적분

Integral in physics

Definite integral In the 2D coordinate plane, definite integral is a way to find the area of a graph. The only simple way to get the area as the product of width…
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케플러의 법칙

Kepler’s law

Kepler and Tycho Brahe There is an astronomer who must be mentioned before talking about Kepler (Johannes Kepler 1571 ~ 1630). That’s Tycho Brahe. Tycho Brahe (1546-1601) is a famous Danish astronomer.…
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토리첼리의 실험

Torricelli’s Experiment

* Wear gloves when handling mercury. Torricelli’s Experiment The first person to measure the magnitude of air pressure is Italian scientist Toricelli. He was filled with mercury (Hg) in a glass tube…
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망델브로 집합 Mandelbrot Set

Mandelbrot Set

  This simulation supports both pinch zoom and mouse scrolling. We recommend using the Chrome browser. (to get more processing speed) Imaginary number An imaginary number is consisted with a number that…
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스피커 Speaker

Speaker

A changing electrical signal is fed to the voice coil of a loudspeaker, which lies within the magnetic field of a permanent magnet. The signal in the coil causes it to behave…
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