Mercury Barometers on Different Planets
What would happen if you brought a mercury barometer to Earth, the Moon, Mercury, Venus, and Mars? Here, we assume that the mercury barometer has a U-shaped tube: one side is open, and the other side … more
Atmosphere Simulation
Density distribution in the atmosphere
Observe how the density distribution of the atmosphere changes as gravity (gravitational acceleration) is varied. The total kinetic energy of the air particles is assumed to be constant. Gravity is assumed to act uniformly, and no … more
Torricelli’s Experiment
Torricelli’s Experiment The first person to measure the magnitude of air pressure is Italian scientist Torricelli. He was filled with mercury (Hg) in a glass tube with one end blocked. And he stood upside down in … more
Drinks in a straw aren’t pulled, they’re pushed.
Drinks in a straw aren’t pulled, they’re pushed. When we say ‘straw,’ most people picture liquid being sucked upward. But scientifically, that’s not what happens. The liquid doesn’t rise because of suction; it rises because the … more
Pressure and Pressing Area
Pressure is defined as the force applied per unit area. When the same force is applied to two different surfaces, the pressure depends on the size of the area: the larger the area, the smaller the … more
Saturation Mixing Ratio
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
Equilibrium
* If the simulation does not move, please refresh the web page. Radiation Places near the stove feel warmer than far away. This is due to the direct transfer of heat from the stove without the … more
Coriolis Effect
Coriolis effect The French mathematician Coriolis first explained that the direction of fluid movement on the Earth’s surface is slightly warped. You can observe this effect in all spinning places like Earth. The Coriolis effect causes … more
Weather front and temperate cyclone
You can drag the screen to rotate it. Temperate cyclone (also known as Extra-tropical cyclone) The temperate zone is where the north’s cold air mass meets the south’s warm air mass. When two different chunks of … more
Atmosphere
Altitude-temperature data is based on ISA(International Standard Atmosphere). Values other than the data were obtained using spline interpolation. Altitude(km) Air Temperature(℃) 0 15 4 -11 8 -37 12 -56.5 20 -56.5 30 -46.5 40 -22 50 … more
The Air Pressure and Wind
If you fill the Coriolis effect 100%, the actual wind on the surface of Earth will appear. High atmospheric pressure and low atmospheric pressure The cause of wind blowing is the difference in air pressure. A … more
Sea and Land Breeze
Sea and Land Breeze Sea and Land Breeze is a wind that changes its wind direction every day in coastal areas. During the day, a sea breeze blows from the sea to the land, and at … more