Science simulation

원자의 구조 Structure of an Atom

Structure of an Atom

The History of the Atom Democritus (Ancient Greece) – Predict the presence of an atom Dalton (UK, 1800) – Applied atomic chemistry Krux (Britain, late 19th century) – Invented a cathode ray…
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맥박수 측정용 초시계 Stopwatch for Pulse Measurement

Stopwatch for Pulse Measurement

Start / Stop Pulse Pulse represents the number of heart beats per minute, which can be assessed by palpating an artery against a bone. Standard pulse Elementary student: 80~90 Adult: 60~80 Senile:…
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물질의 상태 Status

Status

State of matter The material around us exists in three states (solid, liquid, gas) depending on temperature. Solids do not change shape and volume like ice, trees, and so on. The liquid…
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물의 상태 변화 Status Change of Water

Status Change of Water

Reset Run Melting point and heat of fusion When you apply heat to ice (solid), the temperature rises gradually. By the way, when the ice melts, the temperature does not rise. That…
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북을 두들길 때의 정상파 Standing Waves on a Drum Surface

Standing Waves on a Drum Surface

Try another frequency Standing wave occurs when incoming and reflected waves interfere with each other. It produces a wave pattern that appears to be stationary. Nodes are locations where particles of the…
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정상파 합성 Standing Wave Synthesis

Standing Wave Synthesis

Trace Reset Standing wave occurs when incoming and reflected waves interfere with each other. It produces a wave pattern that appears to be stationary. Nodes are locations where particles of the medium…
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표준 환원 전위 Standard Reduction Potentials

Standard Reduction Potentials

Standard hydrogen electrode The hydrogen standard electrode is a platinum electrode plugged in a 1 M solution of H+. This platinum electrode should be in equilibrium with H+ at 1 atmosphere of…
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스피커 Speaker

Speaker

Current Auto 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…
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지진계와 관성의 법칙 Seismometer and Inertia

Seismometer and Inertia

Inertia Inertia is the resistance, of any physical object, to any change in its velocity. Examples of Inertia Shaking a bottle of ketchup. When bringing the bottom down, the suddenly stopping it,…
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지진파 Seismic Wave

Seismic Wave

Earthquake Investigation inside earth The most obvious way to see the inside of the earth is to drill directly into the earth. However, as you enter the Earth, the temperature and pressure…
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무성생식과 유성생식 Asexual Reproduction and Sexual Reproduction

Asexual Reproduction and Sexual Reproduction

Reset Run Advantages of sexual reproduction compared to asexual reproduction Some of the organisms do not make germ cells, but they produce new offspring through cell division. (Asexual reproduction) Most of the…
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인공위성의 원리 Principle of Satellite

Principle of Satellite

Shot How cannon ball become a satellite? a. Think of cannon ball falling in parabolic shape. The trajectory drawn by the cannon ball is actually part of an elliptical orbit that focuses…
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