Classification of igneous rocks
Igneous rocks are rocks formed from molten magma. The material is made liquid by the heat inside the Earth’s mantle. Igneous rock occurs in two ways. Slow cooling: Igneous rock formed from magma that has become … more
Earth Simulation
Formation Model of Columnar Joint
Formation of Columnar Joint A columnar joint appears as a polyhedral pillar, such as a tetragonal, pentagonal, or hexagonal shape. Its shape depends on the rate at which the lava solidifies. Columnar joints are often mistakenly … more
Pressure and Pressing Area
The force applied per unit area is called pressure. If the force applied to any two points is the same, the larger the area, the smaller the pressure. Conversely, the smaller the area, the greater the … 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
Seismometer and Inertia
Inertia When the bus starts suddenly, the body momentarily leans backward. On the other hand, when the bus stops, the body is leaned forward. This is due to the nature of the object to maintain its … more
Epeirogenic movement
Epeirogenic movement(Epeirogeny) It is a phenomenon that the crust is slowly rising or sinking over a wide range. The crust rests on a dense mantle and balances forces. Therefore, when the high part of the crust … more
Where did Dew come from?
Could the cup’s water leak out? From the conclusion, the water on the surface of the cup is derived from the air. In an arid desert, dew does not occur. If you put the ice in … more
Graph of Saturated Vapor 2
Water vapor in the air Liquid water can evaporate and turn into water vapor in the air. Conversely, water vapor in the air may turn back into the water. Some are very dry, with no moisture … more
Psychrometer(hygrometer)
hygrometer It is a simple device that allows you to determine the humidity by measuring the difference in how much water evaporates. Compared to a simple structure, humidity can be measured relatively accurately. Before electronic hygrometers … more