Interactive Science Simulation

이동준 선생의 자바실험실

About JavaLab

Javalab JavaLab is Free Interactive Science Simulation Website for School. Simulates various natural phenomena Physics, Chemistry, Earth, Astronomy, Biology, Measurment, Mathmatics… Based on HTML5 Available on mobile devices and tablets also No more Plug-in add-on Free of Charge / No…
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달의 운동과 조석 Tides


Tides is the periodic rise and fall of the ocean surface due to the gravitational pulls of the moon and sun. Spring Tide is the highest high tide occurs during tide. Occurs when the Sun, Earth & Moon are in…
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푸코의 진자 Foucault Pendulum

Foucault Pendulum

* Earth globe photo credit: Foucault’s pendulum is a device invented by French scientist Leon Foucault to prove the Earth’s rotation In 1851. The fact that the Earth rotates has been known for a long time, but it is…
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원의 넓이 구하기 Area of Circle

Area of Circle

How to calculate the area of a circle If you cut the circles and put them on each other, they gradually become a shape close to the rectangle. At this time, the horizontal length of the rectangle becomes half of…
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도플러 효과와 적색 편이 Doppler Effect and RedShift

Doppler Effect and RedShift

Most of the distant galaxies are moving away from our galaxy. Only a fraction of galaxies like Andromeda are coming to us. Scientists have found these things simply by observing the universe. How did you find out?

금성의 시운동 Apparent Motion of Venus

Apparent Motion of Venus

All planets in the Solar System revolve around the Sun in a counterclockwise direction when one views them from the north pole of the celestial sphere. Mercury and Venus are inner planets in the Solar System. They are closer to…
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금성의 위상 Phase of Venus

Phase of Venus

What is the difference between Geocentric theory and Copernican theory? What is the phase of Venus, which can not be found in the Geocentric theory?

영의 이중 슬릿 Young's Double Slit

Young’s Double Slit

Young’s Double Slit experiment is a phenomenon in which light passing through two slits creates a specific pattern. Each slit acts as a source of coherent waves which spread out forming an interference pattern that can be seen on a…
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보어의 원자 모형 Bohrs Atomic Model

Bohr’s Atomic Model

In 1913, Niels Bohr proposed his quantized shell model of the atom to explain how electrons can have stable orbits around the nucleus. The atom only has certain energy levels, they are determined by fixed circular orbits of electrons around…
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원자의 전자 배치 Electron Configuration of an Atom

Electron Configuration of an Atom

Electron Configuration is the arrangement of electrons in an atom. Electrons fill the lowest energy level first. The atomic numbers tells how far electrons are from the nucleus. And then, what other rules are there?

단진자의 주기 Period of Pendulum

Period of Pendulum

A pendulum that vibrates can be classified as ‘simple pendulum’ and ‘physical pendulum’. A simple pendulum is a case in which the angular motion of an object can be ignored, such as a small object suspended from a string that…
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원형 도선 주위의 자기장 Magnetic Field around a Circular Wire

Magnetic Field around a Circular Wire

Magnetic field is the area surrounding a magnet in which the magnetic force exists. The magnetic field is also formed around the conductor through which the current flows. This is electromagnetism. The direction of the magnetic field can be determined…
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막대자석 주위의 자기장 Magnetic Field around a Bar Magnet

Magnetic Field around a Bar Magnet

Magnetic field is the area surrounding a magnet in which the magnetic force exists. The lines of magnetic field from a bar magnet form closed lines. By convention, the field direction is taken to be outward from the North pole…
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