Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.
There are three types of waves, namely mechanical, matter and electromagnetic. For mechanical waves to be effective, they need a material medium such as water, air or rope, and the mechanical waves can be either transverse, surface or longitudinal. For more information look here: http://library.thinkquest.org/10796/ch8/ch8.
