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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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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* 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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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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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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How to use the simulation Drag the ball with your mouse to free fall it in the air. Drag your mouse on the cliff to observe the parabolic motion. You can change…
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* 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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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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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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* 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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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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