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
The principle of a transistor
Transistor There are so many switches inside your computer that you can’t imagine. It’s not the hand-pressed switch we’ve been seeing. It is a switch operated by an electrical signal. The computer counts ‘1’ and ‘0’ … more
Structure of an Atom
The discovery process 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 tube to explain … more
Stopwatch for Pulse Measurement
Pulse When the heartbeats, blood flows through the blood vessels in a certain rhythm, causing the blood vessels to vibrate. This vibration is called the pulse. So, by measuring your pulse rate, you can find out … more
Status Change of Water
Melting point and heat of fusion When heat is applied to ice (solid), the temperature rises gradually. By the way, while the ice is melting, the temperature does not rise. Temperature is kept constant, and the … more
Standing Waves on a Drum Surface
The standing wave of the drum In a standing wave, the position of the vibration node or antinode does not move. Since the drum has a fixed edge, the edge becomes the node of vibration. The … more