Waves are everywhere and most of the information we receive is from waves. These waves can be present in two forms mechanical or electromagnetic:
– Mechanical waves are waves that progress through a substance and the particles of that substance vibrate in a certain way and pass that vibration to neighboring particles.
– Electromagnetic waves are vibrating electric and magnetic fields that progress that progress through space without the need for a substance. The vibrating electric field generates another vibrating electric field and so on.
One of the most know functionality of waves is its use in music and TV. Some uses are more inconspicuous for example; cooking with waves, talking to others and see things all because of waves. Waves transfer energy in different forms, some are very useful, while others can be quite dangerous.
The sound-proof room
Since sound can not travel in a vacuum, acoustic engineers can design soundproof barriers or rooms. If you remove the air between two walls you will be able to greatly reduce the amount of sound that is transmitted. You can also place sound absorbing materials, like the insulation in your home, between the walls to cut down on the transmission of sound waves.