Working of Microwave Oven |
Principle: |
|
Microwaves have a frequency that can penetrate water, fat, sugar molecules, etc. and excite them.
|
Working of Fireworks |
Principle: |
|
Pyrotechnics is the science of using materials capable of undergoing self-contained and self-sustained exothermic chemical reactions for the production of heat, light, gas, smoke and/or sound.
|
How a spherical shell works? |
