Stair Switch
What if only one switch was installed on the stairs? Suppose there is only one light switch at the top of the stairs. What if You trying to descend the stairs presses a switch to descend … more
Chord, Just intonation, Equal temperament
This simulation is Works with Edge, FireFox, Chrome, Safari, Opera. does not works with Internet Explorer, Opera Mini. Due to the nature of the program, there may be some beats even in consonant sounds. Chord The … more
Standing Waves on a String
This simulation is works with Edge, FireFox, Chrome, Safari, Opera. does not work withInternet Explorer, Opera Mini. String instrument Since string instruments are tied on both sides of the string, the string’s end becomes the vibration’s … more
Fourier Series 2
Fourier series The Fourier series is an infinite series that expresses a periodic function that repeats a certain part as the sum of simple trigonometric functions. A simple trigonometric function consists of a smooth surface wave. … more
Fourier Series
Fourier series The Fourier series is an infinite series that expresses a periodic function that repeats a certain part as the sum of simple trigonometric functions. A simple trigonometric function consists of a smooth surface wave. … more
Collision 2
This experiment is, You can experiment with heavy golf balls and light ping pong balls. Put a ping pong ball on top of the golf ball and drop it as it is. The golf ball hits … more
The Ductility and Malleability of Metal
The ductility and malleability of metal When a force is applied to a metal crystal, the metal atom layer is pushed, and the atomic arrangement changes. But at this time, the free electrons move and maintain … more
String Art
You can create various string art works by utilizing the computer’s fast computing power.
Clay Shooting
Parabolic motion Let’s think about the motion of throwing an object horizontally. There is no horizontal force when there is no air resistance, so there is no change in speed. This time, let’s consider a dropping. … more
Reaction Rate
What will the reactant and product concentration curve look like over time? Click the button to start the synthesis reaction. Reaction rate Reaction rate refers to the degree to which a chemical reaction occurs quickly or … more
Equilibrium of Radiation
Radiation Places close to the stove feel warmer than places farther away. This is because heat is transferred directly from the stove without any movement of material. This phenomenon in which heat is transferred directly without … more
The Structure of Ester
Ester Ester is an organic compound having a -COO- group in the middle of its molecular structure. Esters usually have fragrances and are found in perfumes, herbal oils, and pheromones. It is also used as a … more