Science Simulations
Ammonia synthesis process Ammonia is a widely used material, such as fertilizers, plastic materials, medicines, and daily necessities. Currently, ammonia is being mass-produced at factories. However, when we did not know how to synthesize ammonia in the past, we thought … more
Chemical Reactions in Gas Phase Hydrogen gas and oxygen gas react to produce water vapor. The hydrogen gas and the oxygen gas react at a volume ratio of 2: 1 to generate 2 volumes of water vapor. When the gas … more
The 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 … more
You can drag the compass. The 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 … more
Eratosthenes’ Calculation of Earth’s Circumference The first person to measure the earth’s size was Eratosthenes, an ancient Greek scientist about 2,000 years ago. Eratosthenes lived in Alexandria, near the Nile River’s mouth by the Mediterranean coast, in northern Egypt. He … more
Pressure and chemical equilibrium transfer According to Le Châtelier, if the pressure is increased, the equilibrium position will move to reduce the pressure. The system can reduce the pressure by reacting in such a way as to produce fewer molecules. … more
Color and Eye Recognition Visible light has various colors. Light has a different color depending on the wavelength (or frequency). So, how do people perceive color? Cone cells in the eye’s retina recognize color. There are three kinds of cone … more
What is the voltage value of the voltmeter? Voltage distribution in series connection When two or more resistors are connected in series, the sum of the resistors’ voltages becomes the total voltage. Therefore, the resistors divide the supplied voltage according … more
Battery and Load In an electrical circuit, the battery maintains a voltage difference to allow current to flow through the circuit. In an electric circuit, the place where energy is consumed is called a load. Generally, in school labs, the … more
Battery and Load In an electrical circuit, the battery maintains a voltage difference to allow current to flow through the circuit. In an electric circuit, the place where energy is consumed is called a load. Generally, in school labs, the … more
