Diurnal Motion of Sun
* If you are asked to access your location, please allow it. * Your personal data is not stored on the server. * For iOS devices, please allow location access as follows. Diurnal Motion Fix the camera towards Polaris at … more
Rotation
Moment of Inertia
This simulation assumes that there is rolling friction and no sliding friction. The cylinder and cube assumed the density of iron (7.874 g/cm³). Why does a rolling object go down slower than an object that slides down? In conclusion, the … more
‘Moment of inertia’ of various shapes
You can click various shapes on the left and right sides of the screen. What are the characteristics of a shape with a large moment of inertia? What are the characteristics of a shape with a small moment of inertia? … 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 high-pressure system has higher … more
Foucault Pendulum (WebGL)
Foucault’s pendulum is a device invented by French scientist Leon Foucault to prove the Earth’s rotation in 1851. The fact that the Earth rotates has been known for a long time, but it is the first example that proves it … more
Why do we see only one side of the moon?
Why do we always see the same side of the moon? The moon’s rate of rotation and rate of revolution is the same.