【Product Description】
The model of verticall ladder type for explanation of mechanism of the seismic wave (P & S wave) transfering from the underground to the surface.
【Overall Advantages to Users】
- This model was invented by a Japanese junior school teacher through his lessons.
- The model explains and demonstrates to students that the mechanism of primary and secondary wave transferring from a hypocenter in the underground to the surface.
- An explanation using a conventional horizontal wave machine is for students hard to imagine how the seismic wave transfers from the underground because of its horizontal structure, but this model having a vertical structure can make student easier to imagine how the seimic wave transfers from the underground.
【Keywords】
- The earthquake
- Seimic wave
- Seimic center
- Primary and Secondary waves
- Hypocenter