Hardness of Solid Substances - Grinding Selenium
Selenium can easily be ground to a powder.
solid state chemistry
Hardness of Solid Substances - Grinding Tin
Tin is a relatively soft metal that can be flattened.
Hardness of Solid Substances - Grinding Iodine
Iodine can be ground to coarse grains.
Piezoelectric Effect: Part 1 of 2
A piezoelectric crystal is pressed and released producing an electric current that lights an attached bulb.
Piezoelectric Effect: Part 2 of 2
A piezoelectric crystal is pressed producing an electric current that lights an attached bulb. While still pressed the electric circuit is broken. Once the circuit is restored and electricity allowed to flow, the stress in the crystal is relieved.
- « first
- ‹ previous
- 1
- 2
- 3