Design

05. Apr. 2020

The secret about divided mineral particles

Sand is a granular material composed of finely divided rock and mineral particles. It is defined by size, being finer than gravel and coarser than silt. Sand …

20. Mar. 2020

The energy deposition of secondary particles

In physics, mathematics, and related fields, a wave is a disturbance (change from equilibrium) of one or more fields such that the field values oscillate …